def generate(el, data):
return {
'left': pl.get_float_attrib(el, 'x', 20),
'top': pl.get_float_attrib(el, 'y', 20),
'angle': pl.get_float_attrib(el, 'angle', 0),
'image_url': path.join(data['clientFilesUrl'], 'logo.png')
}
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
answer_name = pl.get_string_attrib(element, 'answer-name')
# Check if this element is intended to produce a grade
will_be_graded = pl.get_boolean_attrib(element, 'grade', True)
if not will_be_graded:
return
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get submitted answer (the "state")
state = data['submitted_answers'].get(answer_name, None)
if state is None:
# This might happen. It means that, somehow, the hidden input element
# did not get populated with the PLThreeJS state. The student is not at
# fault, so we'll return nothing - don't grade.
return
# Get correct answer (if none, don't grade)
a = data['correct_answers'].get(answer_name, None)
if a is None:
return
# Get submitted position (as np.array([x, y, z]))
p_sub = np.array(state['body_position'])
# Get submitted orientation (as Quaternion - first, roll [x,y,z,w] to [w,x,y,z])
q_sub = pyquaternion.Quaternion(np.roll(state['body_quaternion'], 1))
# Get format of correct answer
f = pl.get_string_attrib(element, 'answer-pose-format', 'rpy')
# Get correct position (as np.array([x, y, z])) and orientation (as Quaternion)
p_tru, q_tru = parse_correct_answer(f, a)
# Find distance between submitted position and correct position
error_in_translation = np.linalg.norm(p_sub - p_tru)
# Find smallest angle of rotation between submitted orientation and correct orientation
error_in_rotation = np.abs((q_tru.inverse * q_sub).degrees)
# Get tolerances
tol_translation = pl.get_float_attrib(element, 'tol-translation', 0.5)
tol_rotation = pl.get_float_attrib(element, 'tol-rotation', 5)
if (tol_translation <= 0):
raise Exception('tol_translation must be a positive real number: {:g}'.format(tol_translation))
if (tol_rotation <= 0):
raise Exception('tol_rotation must be a positive real number (angle in degrees): {:g}'.format(tol_rotation))
# Check if angle is no greater than tolerance
if ((error_in_rotation <= tol_rotation) and (error_in_translation <= tol_translation)):
data['partial_scores'][answer_name] = {'score': 1, 'weight': weight, 'feedback': {'error_in_rotation': error_in_rotation, 'error_in_translation': error_in_translation}}
else:
data['partial_scores'][answer_name] = {'score': 0, 'weight': weight, 'feedback': {'error_in_rotation': error_in_rotation, 'error_in_translation': error_in_translation}}
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap submitted answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# If true and submitted answers have different shapes, score is zero
if not (a_sub.shape == a_tru.shape):
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
correct = pl.is_correct_ndarray2D_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
correct = pl.is_correct_ndarray2D_sf(a_sub, a_tru, digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
correct = pl.is_correct_ndarray2D_dd(a_sub, a_tru, digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def grade(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = data['correct_answers'].get(name, None)
if a_tru is None:
return data
# Convert true answer to numpy
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
# Convert submitted answer to numpy
a_sub = np.array(a_sub)
# If true and submitted answers have different shapes, score is zero
if not (a_sub.shape == a_tru.shape):
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-5)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
correct = pl.is_correct_ndarray2D_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
eps_digits = pl.get_integer_attrib(element, 'eps_digits', 3)
correct = pl.is_correct_ndarray2D_sf(a_sub, a_tru, digits, eps_digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
eps_digits = pl.get_integer_attrib(element, 'eps_digits', 3)
correct = pl.is_correct_ndarray2D_dd(a_sub, a_tru, digits, eps_digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap submitted answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# If true and submitted answers have different shapes, score is zero
if not (a_sub.shape == a_tru.shape):
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
correct = pl.is_correct_ndarray2D_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
correct = pl.is_correct_ndarray2D_sf(a_sub, a_tru, digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
correct = pl.is_correct_ndarray2D_dd(a_sub, a_tru, digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = str(a_tru)
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['partial_scores'][name] = {'score': 0, 'weight': weight}
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
# Get max error according to numpy.allclose()
eps = np.absolute(a_tru) * rtol + atol
eps += random.uniform(1, 10)
answer = a_tru + eps * random.choice([-1, 1])
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
# Get max error according to pl.is_correct_scalar_sf()
if (a_tru == 0):
n = digits - 1
else:
n = -int(np.floor(np.log10(np.abs(a_tru)))) + (digits - 1)
eps = 0.51 * (10**-n)
eps += random.uniform(1, 10)
answer = a_tru + eps * random.choice([-1, 1])
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
# Get max error according to pl.is_correct_scalar_dd()
eps = 0.51 * (10**-digits)
eps += random.uniform(1, 10)
answer = a_tru + eps * random.choice([-1, 1])
else:
raise ValueError('method of comparison "%s" is not valid' %
comparison)
data['raw_submitted_answers'][name] = str(answer)
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
data['raw_submitted_answers'][name] = '1 + 2'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def grade(element_html, data):
# Get the name of the element and the weight for this answer
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_float_attrib(element, 'weight', 1.0)
# Get the number of submitted clicks and the correct number of clicks
submitted_answer = data["submitted_answers"][name]
correct_answer = data["correct_answers"][name]
score = 0.0
feedback = None
# Grade the actual number of clicks
if submitted_answer == correct_answer:
score = 1.0
elif submitted_answer == correct_answer - 1:
score = 0.75
feedback = 'Your number was one too small.'
elif submitted_answer == correct_answer + 1:
score = 0.5
feedback = 'Your number was one too large.'
else:
score = 0
feedback = "You didn't click on the image the correct number of times"
# Put the score, weight, and feedback into the data object
data['partial_scores'][name] = {
'score': score,
'weight': weight,
'feedback': feedback
}
def grade(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = data['correct_answers'].get(name, None)
if a_tru is None:
return data
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-5)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
correct = pl.is_correct_scalar_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
eps_digits = pl.get_integer_attrib(element, 'eps_digits', 3)
correct = pl.is_correct_scalar_sf(a_sub, a_tru, digits, eps_digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
eps_digits = pl.get_integer_attrib(element, 'eps_digits', 3)
correct = pl.is_correct_scalar_dd(a_sub, a_tru, digits, eps_digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
def prepare(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
required_attribs = ['answers-name']
optional_attribs = ['weight', 'correct-answer', 'label', 'suffix', 'display', 'comparison', 'rtol', 'atol', 'digits', 'allow-complex']
pl.check_attribs(element, required_attribs, optional_attribs)
name = pl.get_string_attrib(element, 'answers-name')
correct_answer = pl.get_float_attrib(element, 'correct-answer', None)
if correct_answer is not None:
if name in data['correct_answers']:
raise Exception('duplicate correct_answers variable name: %s' % name)
data['correct_answers'][name] = correct_answer
def prepare(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
required_attribs = ['answers-name']
optional_attribs = ['weight', 'correct-answer', 'label', 'suffix', 'display', 'comparison', 'rtol', 'atol', 'digits', 'allow-complex', 'show-help-text', 'size', 'show-correct-answer', 'show-placeholder', 'allow-fractions', 'allow-blank', 'blank-value', 'custom-format']
pl.check_attribs(element, required_attribs, optional_attribs)
name = pl.get_string_attrib(element, 'answers-name')
correct_answer = pl.get_float_attrib(element, 'correct-answer', None)
if correct_answer is not None:
if name in data['correct_answers']:
raise Exception('duplicate correct_answers variable name: %s' % name)
data['correct_answers'][name] = correct_answer
custom_format = pl.get_string_attrib(element, 'custom-format', None)
if custom_format is not None:
try:
_ = ('{:' + custom_format + '}').format(0)
except ValueError:
raise Exception('invalid custom format: %s' % custom_format) from None
def render(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
label = pl.get_string_attrib(element, 'label', None)
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-5)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
info_params = {
'format': True,
'relabs': True,
'rtol': rtol,
'atol': atol
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {'format': True, 'sigfig': True, 'digits': digits}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {'format': True, 'decdig': True, 'digits': digits}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
with open('pl_matrix_input.mustache', 'r') as f:
info = chevron.render(f, info_params).strip()
with open('pl_matrix_input.mustache', 'r') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'editable': editable,
'info': info,
'shortinfo': shortinfo
}
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl_matrix_input.mustache', 'r') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error
}
if parse_error is None:
a_sub = np.array(data['submitted_answers'][name])
html_params['a_sub'] = pl.numpy_to_matlab(a_sub,
ndigits=12,
wtype='g')
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
with open('pl_matrix_input.mustache', 'r') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = data['correct_answers'].get(name, None)
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-5)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
a_tru = pl.numpy_to_matlab(a_tru, ndigits=12, wtype='g')
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = pl.numpy_to_matlab_sf(a_tru, ndigits=digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = pl.numpy_to_matlab(a_tru, ndigits=digits, wtype='f')
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
# FIXME: render correctly with respect to method of comparison
html_params = {'answer': True, 'label': label, 'a_tru': a_tru}
with open('pl_matrix_input.mustache', 'r') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def categorize_options(element, data):
"""Get provided correct and incorrect answers"""
correct_answers = []
incorrect_answers = []
index = 0
for child in element:
if child.tag in ['pl-answer', 'pl_answer']:
pl.check_attribs(child,
required_attribs=[],
optional_attribs=['score', 'correct', 'feedback'])
correct = pl.get_boolean_attrib(child, 'correct', False)
child_html = pl.inner_html(child)
child_feedback = pl.get_string_attrib(child, 'feedback',
FEEDBACK_DEFAULT)
default_score = SCORE_CORRECT_DEFAULT if correct else SCORE_INCORRECT_DEFAULT
score = pl.get_float_attrib(child, 'score', default_score)
if not (SCORE_INCORRECT_DEFAULT <= score <= SCORE_CORRECT_DEFAULT):
raise Exception(
f'Score {score} is invalid, must be in the range [0.0, 1.0].'
)
if correct and score != SCORE_CORRECT_DEFAULT:
raise Exception('Correct answers must give full credit.')
answer_tuple = (index, correct, child_html, child_feedback, score)
if correct:
correct_answers.append(answer_tuple)
else:
incorrect_answers.append(answer_tuple)
index += 1
file_path = pl.get_string_attrib(element, 'external-json',
EXTERNAL_JSON_DEFAULT)
if file_path is not EXTERNAL_JSON_DEFAULT:
correct_attrib = pl.get_string_attrib(
element, 'external-json-correct-key',
EXTERNAL_JSON_CORRECT_KEY_DEFAULT)
incorrect_attrib = pl.get_string_attrib(
element, 'external-json-incorrect-key',
EXTERNAL_JSON_INCORRECT_KEY_DEFAULT)
if pathlib.PurePath(file_path).is_absolute():
json_file = file_path
else:
json_file = pathlib.PurePath(
data['options']['question_path']).joinpath(file_path)
try:
with open(json_file, mode='r', encoding='utf-8') as f:
obj = json.load(f)
for text in obj.get(correct_attrib, []):
correct_answers.append(
(index, True, text, None, SCORE_CORRECT_DEFAULT))
index += 1
for text in obj.get(incorrect_attrib, []):
incorrect_answers.append(
(index, False, text, None, SCORE_INCORRECT_DEFAULT))
index += 1
except FileNotFoundError:
raise Exception(
f'JSON answer file: "{json_file}" could not be found')
return correct_answers, incorrect_answers
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
if '_pl_matrix_input_format' in data['submitted_answers']:
format_type = data['submitted_answers']['_pl_matrix_input_format'].get(name, 'matlab')
else:
format_type = 'matlab'
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
if (rtol < 0):
raise ValueError('Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError('Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {'format': True, 'relabs': True, 'rtol': '{:g}'.format(rtol), 'atol': '{:g}'.format(atol)}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'sigfig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 1))}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'decdig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 0))}
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
info_params['allow_complex'] = pl.get_boolean_attrib(element, 'allow-complex', False)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# Format answer as a string
html_params['a_sub'] = pl.string_from_2darray(a_sub, language=format_type, digits=12, presentation_type='g')
else:
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
matlab_data = pl.string_from_2darray(a_tru, language='matlab', digits=12, presentation_type='g')
python_data = pl.string_from_2darray(a_tru, language='python', digits=12, presentation_type='g')
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
matlab_data = pl.string_from_2darray(a_tru, language='matlab', digits=digits, presentation_type='sigfig')
python_data = pl.string_from_2darray(a_tru, language='python', digits=digits, presentation_type='sigfig')
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
matlab_data = pl.string_from_2darray(a_tru, language='matlab', digits=digits, presentation_type='f')
python_data = pl.string_from_2darray(a_tru, language='python', digits=digits, presentation_type='f')
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
html_params = {
'answer': True,
'label': label,
'matlab_data': matlab_data,
'python_data': python_data,
'uuid': pl.get_uuid()
}
if format_type == 'matlab':
html_params['default_is_matlab'] = True
else:
html_params['default_is_python'] = True
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name', '')
preview_mode = not pl.get_boolean_attrib(
element, 'gradable', defaults.element_defaults['gradable'])
with open('pl-drawing.mustache') as f:
template = f.read()
btn_markup = ''
init = []
load_extensions(data)
for el in element:
if el.tag is lxml.etree.Comment:
continue
elif el.tag == 'pl-controls' and not preview_mode:
btn_markup = render_controls(template, el)
elif el.tag == 'pl-drawing-initial':
init, _ = render_drawing_items(el)
draw_error_box = pl.get_boolean_attrib(
el, 'draw-error-box',
defaults.element_defaults['draw-error-box'])
for obj in init:
obj['graded'] = False
obj['drawErrorBox'] = draw_error_box
if 'objectDrawErrorBox' in obj:
if obj['objectDrawErrorBox'] is not None:
obj['drawErrorBox'] = obj['objectDrawErrorBox']
grid_size = pl.get_integer_attrib(element, 'grid-size',
defaults.element_defaults['grid-size'])
tol = pl.get_float_attrib(element, 'tol', grid_size / 2)
angle_tol = pl.get_float_attrib(element, 'angle-tol',
defaults.element_defaults['angle-tol'])
tol_percent = round(tol / grid_size, 2) if grid_size != 0 else 1
js_options = {
'snap_to_grid':
pl.get_boolean_attrib(element, 'snap-to-grid',
defaults.element_defaults['snap-to-grid']),
'grid_size':
grid_size,
'editable': (data['panel'] == 'question' and not preview_mode),
'base_url':
data['options']['base_url'],
'client_files':
'/pl/static/elements/pl-drawing/clientFilesElement/',
'element_client_files':
data['options']['client_files_extensions_url'],
'render_scale':
pl.get_float_attrib(element, 'render-scale',
defaults.element_defaults['render-scale']),
'width':
pl.get_string_attrib(element, 'width',
defaults.element_defaults['width']),
'height':
pl.get_string_attrib(element, 'height',
defaults.element_defaults['height'])
}
show_btn = data['panel'] == 'question' and not preview_mode
if tol == grid_size / 2:
message_default = 'The expected tolerance is 1/2 square grid for position and ' + str(
angle_tol) + ' degrees for angle.'
else:
message_default = 'The expected tolerance is ' + str(
tol_percent) + ' square grid for position and ' + str(
angle_tol) + ' degrees for angle.'
html_params = {
'uuid':
pl.get_uuid(),
'width':
pl.get_string_attrib(element, 'width',
defaults.element_defaults['width']),
'height':
pl.get_string_attrib(element, 'height',
defaults.element_defaults['height']),
'options_json':
json.dumps(js_options),
'show_buttons':
show_btn,
'name':
name,
'render_element':
True,
'btn_markup':
btn_markup,
'show_tolerance':
show_btn and pl.get_boolean_attrib(
element, 'show-tolerance-hint',
defaults.element_defaults['show-tolerance-hint']),
'tolerance':
pl.get_string_attrib(element, 'tolerance-hint', message_default),
}
if data['panel'] == 'answer' and pl.get_boolean_attrib(
element, 'hide-answer-panel', True):
return ''
if preview_mode:
html_params['input_answer'] = json.dumps(init)
else:
if data['panel'] == 'answer' and name in data['correct_answers']:
html_params['input_answer'] = json.dumps(
data['correct_answers'][name])
else:
sub = []
if name in data['submitted_answers']:
sub = data['submitted_answers'][name]
items = union_drawing_items(init, sub)
html_params['input_answer'] = json.dumps(items)
# Grading feedback
if data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params['parse_error'] = parse_error
return chevron.render(template, html_params).strip()
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
answer_name = pl.get_string_attrib(element, 'answer-name')
uuid = pl.get_uuid()
body_position = get_position(element,
'body-position',
default=BODY_POSITION_DEFAULT)
body_orientation = get_orientation(element, 'body-orientation',
BODY_ORIENTATION_DEFAULT)
camera_position = get_position(element,
'camera-position',
default=CAMERA_POSITION_DEFAULT,
must_be_nonzero=True)
body_cantranslate = pl.get_boolean_attrib(element, 'body-cantranslate',
BODY_CANTRANSLATE_DEFAULT)
body_canrotate = pl.get_boolean_attrib(element, 'body-canrotate',
BODY_CANROTATE_DEFAULT)
camera_canmove = pl.get_boolean_attrib(element, 'camera-canmove',
CAMERA_CANMOVE_DEFAULT)
text_pose_format = pl.get_string_attrib(element, 'text-pose-format',
TEXT_POSE_FORMAT_DEFAULT)
if text_pose_format not in ['matrix', 'quaternion', 'homogeneous']:
raise Exception(
'attribute "text-pose-format" must be either "matrix", "quaternion", or homogeneous'
)
objects = get_objects(element, data)
if data['panel'] == 'question':
will_be_graded = pl.get_boolean_attrib(element, 'grade', GRADE_DEFAULT)
show_pose = pl.get_boolean_attrib(element, 'show-pose-in-question',
SHOW_POSE_IN_QUESTION_DEFAULT)
# Restore pose of body and camera, if available - otherwise use values
# from attributes (note that restored pose will also have camera_orientation,
# which we currently ignore because the camera is always z up and looking
# at the origin of the space frame).
#
# Be careful. It's possible that data['submitted_answers'][answer_name]
# exists but is None (due to some other error). So we need to use None
# as the default and to check if the result - either from the existing
# value or the default value - is None.
pose_default = {
'body_quaternion': body_orientation,
'body_position': body_position,
'camera_position': camera_position
}
pose = data['submitted_answers'].get(answer_name, None)
if pose is None:
pose = pose_default
# These are passed as arguments to PLThreeJS constructor in client code
options = {
'uuid': uuid,
'pose': dict_to_b64(pose),
'pose_default': dict_to_b64(pose_default),
'body_cantranslate': body_cantranslate,
'body_canrotate': body_canrotate,
'camera_canmove': camera_canmove,
'text_pose_format': text_pose_format,
'objects': objects
}
# These are used for templating
html_params = {
'question':
True,
'uuid':
uuid,
'answer_name':
answer_name,
'show_bodybuttons':
body_cantranslate or body_canrotate,
'show_toggle':
body_cantranslate and body_canrotate,
'show_reset':
body_cantranslate or body_canrotate or camera_canmove,
'show_pose':
show_pose,
'show_instructions':
will_be_graded,
'tol_translation':
'{:.2f}'.format(
pl.get_float_attrib(element, 'tol-translation', 0.5)),
'tol_rotation':
'{:.1f}'.format(pl.get_float_attrib(element, 'tol-rotation', 5)),
'default_is_python':
True,
'options':
json.dumps(options, allow_nan=False)
}
with open('pl-threejs.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
will_be_graded = pl.get_boolean_attrib(element, 'grade', GRADE_DEFAULT)
if not will_be_graded:
return ''
show_pose = pl.get_boolean_attrib(
element, 'show-pose-in-submitted-answer',
SHOW_POSE_IN_SUBMITTED_ANSWER_DEFAULT)
# Get submitted answer
pose = data['submitted_answers'].get(answer_name)
# These are passed as arguments to PLThreeJS constructor in client code
options = {
'uuid': uuid,
'pose': dict_to_b64(pose),
'body_cantranslate': False,
'body_canrotate': False,
'camera_canmove': False,
'text_pose_format': text_pose_format,
'objects': objects
}
# These are used for templating
html_params = {
'submission': True,
'uuid': uuid,
'answer_name': answer_name,
'show_bodybuttons': False,
'show_toggle': False,
'show_pose': show_pose,
'default_is_python': True,
'options': json.dumps(options, allow_nan=False)
}
partial_score = data['partial_scores'].get(answer_name, None)
if partial_score is not None:
html_params['error_in_translation'] = str(
np.abs(
np.round(partial_score['feedback']['error_in_translation'],
2)))
html_params['error_in_rotation'] = str(
np.abs(
np.round(partial_score['feedback']['error_in_rotation'],
1)))
html_params['show_feedback'] = True
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-threejs.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
will_be_graded = pl.get_boolean_attrib(element, 'grade', GRADE_DEFAULT)
if not will_be_graded:
return ''
show_pose = pl.get_boolean_attrib(element,
'show-pose-in-correct-answer',
SHOW_POSE_IN_CORRECT_ANSWER_DEFAULT)
# Get submitted answer
pose = data['submitted_answers'].get(answer_name, None)
if pose is None:
# If we are here, an error has occurred. Replace pose with its default.
# (Only pose['camera_position'] is actually used.)
pose = {
'body_quaternion': body_orientation,
'body_position': body_position,
'camera_position': camera_position
}
# Get correct answer
a = data['correct_answers'].get(answer_name, None)
if a is None:
return ''
# Convert correct answer to Quaternion, then to [x, y, z, w]
f = pl.get_string_attrib(element, 'answer-pose-format',
ANSWER_POSE_FORMAT_DEFAULT)
p, q = parse_correct_answer(f, a)
p = p.tolist()
q = np.roll(q.elements, -1).tolist()
# Replace body pose with correct answer
pose['body_position'] = p
pose['body_quaternion'] = q
# These are passed as arguments to PLThreeJS constructor in client code
options = {
'uuid': uuid,
'pose': dict_to_b64(pose),
'body_cantranslate': False,
'body_canrotate': False,
'camera_canmove': False,
'text_pose_format': text_pose_format,
'objects': objects
}
# These are used for templating
html_params = {
'answer': True,
'uuid': uuid,
'answer_name': answer_name,
'show_bodybuttons': False,
'show_toggle': False,
'show_pose': show_pose,
'default_is_python': True,
'options': json.dumps(options, allow_nan=False)
}
with open('pl-threejs.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
allow_partial_credit = pl.get_boolean_attrib(element, 'allow-partial-credit', False)
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
number_of_correct = 0
feedback = {}
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
# Get submitted answer (if it does not exist, score is zero)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Compare submitted answer with true answer
if comparison == 'relabs':
correct = pl.is_correct_scalar_ra(a_sub, a_tru[i, j], rtol, atol)
elif comparison == 'sigfig':
correct = pl.is_correct_scalar_sf(a_sub, a_tru[i, j], digits)
elif comparison == 'decdig':
correct = pl.is_correct_scalar_dd(a_sub, a_tru[i, j], digits)
if correct:
number_of_correct += 1
feedback.update({each_entry_name: 'correct'})
else:
feedback.update({each_entry_name: 'incorrect'})
if number_of_correct == m * n:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
if not allow_partial_credit:
score_value = 0
else:
score_value = number_of_correct / (m * n)
data['partial_scores'][name] = {'score': score_value, 'weight': weight, 'feedback': feedback}
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
width = pl.get_float_attrib(element, 'width', None)
height = pl.get_float_attrib(element, 'height', None)
background = None
# Assign layer index in order children are defined
# Later defined elements will be placed on top of earlier ones
locations = []
z_index = 0
for child in element:
# Ignore comments
if isinstance(child, lxml.html.HtmlComment):
continue
# Don't do any special processing for backgrounds
if child.tag == 'pl-background':
background = pl.inner_html(child)
continue
# Otherwise, continue as normal
valign = pl.get_string_attrib(child, 'valign', VALIGN_DEFAULT)
halign = pl.get_string_attrib(child, 'halign', HALIGN_DEFAULT)
left = pl.get_float_attrib(child, 'left', None)
right = pl.get_float_attrib(child, 'right', None)
top = pl.get_float_attrib(child, 'top', None)
bottom = pl.get_float_attrib(child, 'bottom', None)
# We allow both left/right and top/bottom but only set top and left
# so we don't have to worry about all the alignment possibilities
if left is not None:
x = left
elif right is not None:
x = width - right
if top is not None:
y = top
elif bottom is not None:
y = height - bottom
hoff = ALIGNMENT_TO_PERC[halign]
voff = ALIGNMENT_TO_PERC[valign]
transform = f'translate({hoff}, {voff})'
style = f'top: {y}px; left: {x}px; transform: {transform}; z-index: {z_index}'
obj = {
'html': pl.inner_html(child),
'outer_style': style,
}
locations.append(obj)
z_index += 1
html_params = {
'width': width,
'height': height,
'locations': locations,
'background': background,
'clip': pl.get_boolean_attrib(element, 'clip', CLIP_DEFAULT)
}
with open('pl-overlay.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
return html
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
allow_partial_credit = pl.get_boolean_attrib(element,
'allow-partial-credit', False)
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
number_of_correct = 0
feedback = {}
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
# Get submitted answer (if it does not exist, score is zero)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Compare submitted answer with true answer
if comparison == 'relabs':
correct = pl.is_correct_scalar_ra(a_sub, a_tru[i, j], rtol,
atol)
elif comparison == 'sigfig':
correct = pl.is_correct_scalar_sf(a_sub, a_tru[i, j], digits)
elif comparison == 'decdig':
correct = pl.is_correct_scalar_dd(a_sub, a_tru[i, j], digits)
if correct:
number_of_correct += 1
feedback.update({each_entry_name: 'correct'})
else:
feedback.update({each_entry_name: 'incorrect'})
if number_of_correct == m * n:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
if not allow_partial_credit:
score_value = 0
else:
score_value = number_of_correct / (m * n)
data['partial_scores'][name] = {
'score': score_value,
'weight': weight,
'feedback': feedback
}
def render(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
label = pl.get_string_attrib(element, 'label', None)
suffix = pl.get_string_attrib(element, 'suffix', None)
display = pl.get_string_attrib(element, 'display', 'inline')
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-5)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
info_params = {
'format': True,
'relabs': True,
'rtol': rtol,
'atol': atol
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {'format': True, 'sigfig': True, 'digits': digits}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {'format': True, 'decdig': True, 'digits': digits}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
with open('pl_number_input.mustache', 'r') as f:
info = chevron.render(f, info_params).strip()
with open('pl_number_input.mustache', 'r') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'suffix': suffix,
'editable': editable,
'info': info,
'shortinfo': shortinfo
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except:
raise ValueError('invalid score' + score)
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError(
'method of display "%s" is not valid (must be "inline", "block", or "display")'
% display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl_number_input.mustache', 'r') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error
}
if parse_error is None:
a_sub = data['submitted_answers'][name]
html_params['suffix'] = suffix
html_params['a_sub'] = '{:.12g}'.format(a_sub)
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except:
raise ValueError('invalid score' + score)
with open('pl_number_input.mustache', 'r') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
a_tru = data['correct_answers'].get(name, None)
if a_tru is not None:
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-5)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
a_tru = '{:.12g}'.format(a_tru)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = to_precision.to_precision(a_tru, digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = '{:.{ndigits}f}'.format(a_tru, ndigits=digits)
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
# FIXME: render correctly with respect to method of comparison
html_params = {
'answer': True,
'label': label,
'a_tru': a_tru,
'suffix': suffix
}
with open('pl_number_input.mustache', 'r') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
answer_name = pl.get_string_attrib(element, 'answer-name')
uuid = pl.get_uuid()
body_position = get_position(element, 'body-position', default=[0, 0, 0])
body_orientation = get_orientation(element, 'body-orientation', 'body-pose-format')
camera_position = get_position(element, 'camera-position', default=[5, 2, 2], must_be_nonzero=True)
body_cantranslate = pl.get_boolean_attrib(element, 'body-cantranslate', True)
body_canrotate = pl.get_boolean_attrib(element, 'body-canrotate', True)
camera_canmove = pl.get_boolean_attrib(element, 'camera-canmove', True)
text_pose_format = pl.get_string_attrib(element, 'text-pose-format', 'matrix')
if text_pose_format not in ['matrix', 'quaternion', 'homogeneous']:
raise Exception('attribute "text-pose-format" must be either "matrix", "quaternion", or homogeneous')
objects = get_objects(element, data)
if data['panel'] == 'question':
will_be_graded = pl.get_boolean_attrib(element, 'grade', True)
show_pose = pl.get_boolean_attrib(element, 'show-pose-in-question', True)
# Restore pose of body and camera, if available - otherwise use values
# from attributes (note that restored pose will also have camera_orientation,
# which we currently ignore because the camera is always z up and looking
# at the origin of the space frame).
#
# Be careful. It's possible that data['submitted_answers'][answer_name]
# exists but is None (due to some other error). So we need to use None
# as the default and to check if the result - either from the existing
# value or the default value - is None.
pose_default = {
'body_quaternion': body_orientation,
'body_position': body_position,
'camera_position': camera_position
}
pose = data['submitted_answers'].get(answer_name, None)
if pose is None:
pose = pose_default
# These are passed as arguments to PLThreeJS constructor in client code
options = {
'uuid': uuid,
'pose': dict_to_b64(pose),
'pose_default': dict_to_b64(pose_default),
'body_cantranslate': body_cantranslate,
'body_canrotate': body_canrotate,
'camera_canmove': camera_canmove,
'text_pose_format': text_pose_format,
'objects': objects
}
# These are used for templating
html_params = {
'question': True,
'uuid': uuid,
'answer_name': answer_name,
'show_bodybuttons': body_cantranslate or body_canrotate,
'show_toggle': body_cantranslate and body_canrotate,
'show_reset': body_cantranslate or body_canrotate or camera_canmove,
'show_pose': show_pose,
'show_instructions': will_be_graded,
'tol_translation': '{:.2f}'.format(pl.get_float_attrib(element, 'tol-translation', 0.5)),
'tol_rotation': '{:.1f}'.format(pl.get_float_attrib(element, 'tol-rotation', 5)),
'default_is_python': True,
'options': json.dumps(options, allow_nan=False)
}
with open('pl-threejs.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
will_be_graded = pl.get_boolean_attrib(element, 'grade', True)
if not will_be_graded:
return ''
show_pose = pl.get_boolean_attrib(element, 'show-pose-in-submitted-answer', True)
# Get submitted answer
pose = data['submitted_answers'].get(answer_name)
# These are passed as arguments to PLThreeJS constructor in client code
options = {
'uuid': uuid,
'pose': dict_to_b64(pose),
'body_cantranslate': False,
'body_canrotate': False,
'camera_canmove': False,
'text_pose_format': text_pose_format,
'objects': objects
}
# These are used for templating
html_params = {
'submission': True,
'uuid': uuid,
'answer_name': answer_name,
'show_bodybuttons': False,
'show_toggle': False,
'show_pose': show_pose,
'default_is_python': True,
'options': json.dumps(options, allow_nan=False)
}
partial_score = data['partial_scores'].get(answer_name, None)
if partial_score is not None:
html_params['error_in_translation'] = str(np.abs(np.round(partial_score['feedback']['error_in_translation'], 2)))
html_params['error_in_rotation'] = str(np.abs(np.round(partial_score['feedback']['error_in_rotation'], 1)))
html_params['show_feedback'] = True
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-threejs.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
will_be_graded = pl.get_boolean_attrib(element, 'grade', True)
if not will_be_graded:
return ''
show_pose = pl.get_boolean_attrib(element, 'show-pose-in-correct-answer', True)
# Get submitted answer
pose = data['submitted_answers'].get(answer_name, None)
if pose is None:
# If we are here, an error has occurred. Replace pose with its default.
# (Only pose['camera_position'] is actually used.)
pose = {
'body_quaternion': body_orientation,
'body_position': body_position,
'camera_position': camera_position
}
# Get correct answer
a = data['correct_answers'].get(answer_name, None)
if a is None:
return ''
# Convert correct answer to Quaternion, then to [x, y, z, w]
f = pl.get_string_attrib(element, 'answer-pose-format', 'rpy')
p, q = parse_correct_answer(f, a)
p = p.tolist()
q = np.roll(q.elements, -1).tolist()
# Replace body pose with correct answer
pose['body_position'] = p
pose['body_quaternion'] = q
# These are passed as arguments to PLThreeJS constructor in client code
options = {
'uuid': uuid,
'pose': dict_to_b64(pose),
'body_cantranslate': False,
'body_canrotate': False,
'camera_canmove': False,
'text_pose_format': text_pose_format,
'objects': objects
}
# These are used for templating
html_params = {
'answer': True,
'uuid': uuid,
'answer_name': answer_name,
'show_bodybuttons': False,
'show_toggle': False,
'show_pose': show_pose,
'default_is_python': True,
'options': json.dumps(options, allow_nan=False)
}
with open('pl-threejs.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
prev = not pl.get_boolean_attrib(element, 'gradable',
defaults.element_defaults['gradable'])
if prev:
return
grid_size = pl.get_integer_attrib(element, 'grid-size',
defaults.element_defaults['grid-size'])
tol = pl.get_float_attrib(element, 'tol', grid_size / 2)
angtol = pl.get_float_attrib(element, 'angle-tol',
defaults.element_defaults['angle-tol'])
disregard_extra_elements = pl.get_boolean_attrib(
element, 'disregard-extra-elements',
defaults.element_defaults['disregard-extra-elements'])
name = pl.get_string_attrib(element, 'answers-name',
defaults.element_defaults['answers-name'])
student = data['submitted_answers'][name]
reference = data['correct_answers'][name]
if not isinstance(student, list) or len(student) == 0:
data['format_errors'][name] = 'No submitted answer.'
return data
matches = {} # If a reference object is matched to a student object
num_correct = 0 # number correct
num_total_ref = 0
num_total_st = 0
num_optional = 0
# Ensure that each reference object matches one and only one
# student object. Ungraded elements are skipped.
# num_total_ref is the total number of objects that are expected to be graded
# this disregards optional objects and objects that don't have a grading function
for ref_element in reference:
if elements.is_gradable(
ref_element['gradingName']) and ref_element['graded']:
matches[ref_element['id']] = False
if 'optional_grading' in ref_element and ref_element[
'optional_grading']:
continue
num_total_ref += 1
# Loop through and check everything
for element in student:
if 'gradingName' not in element or not elements.is_gradable(
element['gradingName']
) or 'graded' not in element or not element['graded']:
continue
# total number of objects inserted by students (using buttons)
# this will disregard the initial objects placed by question authors
num_total_st += 1
for ref_element in reference:
if not elements.is_gradable(
ref_element['gradingName']
) or not ref_element['graded'] or element[
'gradingName'] != ref_element['gradingName']:
# Skip if the reference element is not gradable
continue
if not disregard_extra_elements and matches[ref_element['id']]:
# Skip if this object has already been matched
continue
if elements.grade(ref_element, element, element['gradingName'],
tol, angtol):
if ('optional_grading' in ref_element
and ref_element['optional_grading']) or (
disregard_extra_elements
and matches[ref_element['id']]):
# It's optional but correct, so the score should not be affected
# Or, it's a duplicate and we're okay with that.
num_optional += 1
else:
# if correct but optional, it does not add on number of correct answers,
# but the object will not be considered as extra
num_correct += 1
matches[ref_element['id']] = True
break
extra_not_optional = num_total_st - (num_optional + num_correct)
if num_total_ref == 0:
score = 1
else:
percent_correct = num_correct / num_total_ref
if percent_correct == 1:
# if all the expected objects are matched
# penalize extra objects
score = max(0,
percent_correct - extra_not_optional / num_total_ref)
else:
score = percent_correct
data['partial_scores'][name] = {
'score': score,
'weight': 1,
'feedback': {
'correct': (score == 1),
'missing': {},
'matches': matches
}
}
return data
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
# get the name of the element, in this case, the name of the array
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
allow_partial_credit = pl.get_boolean_attrib(element,
'allow-partial-credit', False)
allow_feedback = pl.get_boolean_attrib(element, 'allow-feedback',
allow_partial_credit)
if data['panel'] == 'question':
editable = data['editable']
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
raise Exception(
'No value in data["correct_answers"] for variable %s in pl-matrix-component-input element'
% name)
else:
if np.isscalar(a_tru):
raise Exception(
'Value in data["correct_answers"] for variable %s in pl-matrix-component-input element cannot be a scalar.'
% name)
else:
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise Exception(
'Value in data["correct_answers"] for variable %s in pl-matrix-component-input element must be a 2D array.'
% name)
else:
m, n = np.shape(a_tru)
input_array = createTableForHTMLDisplay(m, n, name, label, data,
'input')
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
if (rtol < 0):
raise ValueError(
'Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError(
'Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {
'format': True,
'relabs': True,
'rtol': '{:g}'.format(rtol),
'atol': '{:g}'.format(atol)
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'sigfig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 1))
}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'decdig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 0))
}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'input_array': input_array,
'inline': True,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
a_tru = pl.from_json(data['correct_answers'].get(name, None))
m, n = np.shape(a_tru)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# Format submitted answer as a latex string
sub_latex = '$' + pl.latex_from_2darray(
a_sub, presentation_type='g', digits=12) + '$'
# When allowing feedback, display submitted answers using html table
sub_html_table = createTableForHTMLDisplay(m, n, name, label, data,
'output-feedback')
if allow_feedback and score is not None:
if score < 1:
html_params['a_sub_feedback'] = sub_html_table
else:
html_params['a_sub'] = sub_latex
else:
html_params['a_sub'] = sub_latex
else:
# create html table to show submitted answer when there is an invalid format
html_params['raw_submitted_answer'] = createTableForHTMLDisplay(
m, n, name, label, data, 'output-invalid')
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters and create the display data
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
latex_data = '$' + pl.latex_from_2darray(
a_tru, presentation_type='g', digits=12) + '$'
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(
a_tru, presentation_type='sigfig', digits=digits) + '$'
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(
a_tru, presentation_type='f', digits=digits) + '$'
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
html_params = {
'answer': True,
'label': label,
'latex_data': latex_data,
'uuid': pl.get_uuid()
}
with open('pl-matrix-component-input.mustache',
'r',
encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def get_objects(element, data):
obj_list = []
for child in element:
is_stl = (child.tag in ['pl-threejs-stl', 'pl_threejs_stl'])
is_txt = (child.tag in ['pl-threejs-txt', 'pl_threejs_txt'])
if not (is_stl or is_txt):
continue
# Type-specific check and get (stl)
if is_stl:
# Attributes
pl.check_attribs(child, required_attribs=['file-name'], optional_attribs=['file-directory', 'frame', 'color', 'position', 'orientation', 'format', 'scale', 'opacity'])
# - file-name (and file-directory)
file_url = get_file_url(child, data)
# - type
object_type = 'stl'
# - object
specific = {
'type': object_type,
'file_url': file_url
}
# Type-specific check and get (txt)
if is_txt:
# Attributes
pl.check_attribs(child, required_attribs=[], optional_attribs=['frame', 'color', 'position', 'orientation', 'format', 'scale', 'opacity'])
# - text
text = pl.inner_html(child)
# - type
object_type = 'txt'
# - object
specific = {
'type': object_type,
'text': text
}
# Common
# - frame
frame = pl.get_string_attrib(child, 'frame', 'body')
if frame not in ['body', 'space']:
raise Exception('"frame" must be either "body" or "space": {:s}'.format(frame))
if frame == 'body':
default_color = '#e84a27'
default_opacity = 0.7
else:
default_color = '#13294b'
default_opacity = 0.4
# - color
color = pl.get_color_attrib(child, 'color', default_color)
# - opacity
opacity = pl.get_float_attrib(child, 'opacity', default_opacity)
# - position
p = pl.get_string_attrib(child, 'position', '[0, 0, 0]')
try:
position = np.array(json.loads(p), dtype=np.float64)
if position.shape == (3,):
position = position.tolist()
else:
raise ValueError()
except Exception:
raise Exception('attribute "position" must have format [x, y, z]: {:s}'.format(p))
# - orientation (and format)
orientation = get_orientation(child, 'orientation', 'format')
# - scale
scale = pl.get_float_attrib(child, 'scale', 1.0)
common = {
'frame': frame,
'color': color,
'opacity': opacity,
'position': position,
'quaternion': orientation,
'scale': scale
}
obj = {**specific, **common}
obj_list.append(obj)
return obj_list
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Cast both submitted and true answers as np.float64, because...
#
# If the method of comparison is relabs (i.e., using relative and
# absolute tolerance) then np.allclose is applied to check if the
# submitted and true answers are the same. If either answer is an
# integer outside the range of int64...
#
# https://docs.scipy.org/doc/numpy-1.13.0/user/basics.types.html
#
# ...then numpy throws this error:
#
# TypeError: ufunc 'isfinite' not supported for the input types, and
# the inputs could not be safely coerced to any supported types
# according to the casting rule ''safe''
#
# Casting as np.float64 avoids this error. This is reasonable in any case,
# because <pl-number-input> accepts double-precision floats, not ints.
#
if np.iscomplexobj(a_sub) or np.iscomplexobj(a_tru):
a_sub = np.complex128(a_sub)
a_tru = np.complex128(a_tru)
else:
a_sub = np.float64(a_sub)
a_tru = np.float64(a_tru)
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
correct = pl.is_correct_scalar_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
correct = pl.is_correct_scalar_sf(a_sub, a_tru, digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
correct = pl.is_correct_scalar_dd(a_sub, a_tru, digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', LABEL_DEFAULT)
if '_pl_matrix_input_format' in data['submitted_answers']:
format_type = data['submitted_answers']['_pl_matrix_input_format'].get(
name, 'matlab')
else:
format_type = 'matlab'
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
if (rtol < 0):
raise ValueError(
'Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError(
'Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {
'format': True,
'relabs': True,
'rtol': '{:g}'.format(rtol),
'atol': '{:g}'.format(atol)
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'sigfig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 1))
}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'decdig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 0))
}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
info_params['allow_complex'] = pl.get_boolean_attrib(
element, 'allow-complex', ALLOW_COMPLEX_DEFAULT)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question':
True,
'name':
name,
'label':
label,
'editable':
editable,
'info':
info,
'shortinfo':
shortinfo,
'show_info':
pl.get_boolean_attrib(element, 'show-help-text',
SHOW_HELP_TEXT_DEFAULT),
'uuid':
pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = pl.escape_unicode_string(
raw_submitted_answer)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None and name in data['submitted_answers']:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# Format answer as a string
html_params['a_sub'] = pl.string_from_2darray(
a_sub, language=format_type, digits=12, presentation_type='g')
elif name not in data['submitted_answers']:
html_params['missing_input'] = True
html_params['parse_error'] = None
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = pl.escape_unicode_string(
raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
html_params['error'] = html_params['parse_error'] or html_params.get(
'missing_input', False)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
# FIXME: render correctly with respect to rtol and atol
matlab_data = pl.string_from_2darray(a_tru,
language='matlab',
digits=12,
presentation_type='g')
python_data = pl.string_from_2darray(a_tru,
language='python',
digits=12,
presentation_type='g')
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits',
DIGITS_DEFAULT)
matlab_data = pl.string_from_2darray(
a_tru,
language='matlab',
digits=digits,
presentation_type='sigfig')
python_data = pl.string_from_2darray(
a_tru,
language='python',
digits=digits,
presentation_type='sigfig')
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits',
DIGITS_DEFAULT)
matlab_data = pl.string_from_2darray(a_tru,
language='matlab',
digits=digits,
presentation_type='f')
python_data = pl.string_from_2darray(a_tru,
language='python',
digits=digits,
presentation_type='f')
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
html_params = {
'answer': True,
'label': label,
'matlab_data': matlab_data,
'python_data': python_data,
'uuid': pl.get_uuid()
}
if format_type == 'matlab':
html_params['default_is_matlab'] = True
else:
html_params['default_is_python'] = True
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
suffix = pl.get_string_attrib(element, 'suffix', None)
display = pl.get_string_attrib(element, 'display', DISPLAY_DEFAULT)
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
html_params = {
'question': True,
'name': name,
'label': label,
'suffix': suffix,
'editable': editable,
'size': pl.get_integer_attrib(element, 'size', SIZE_DEFAULT),
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
if (rtol < 0):
raise ValueError(
'Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError(
'Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {
'format': True,
'relabs': True,
'rtol': '{:g}'.format(rtol),
'atol': '{:g}'.format(atol)
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'sigfig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 1))
}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'decdig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 0))
}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
# Update parameters for the info popup
show_correct = 'correct' in html_params and pl.get_boolean_attrib(
element, 'show-correct-answer', SHOW_CORRECT_ANSWER_DEFAULT)
info_params['allow_complex'] = pl.get_boolean_attrib(
element, 'allow-complex', ALLOW_COMPLEX_DEFAULT)
info_params['show_info'] = pl.get_boolean_attrib(
element, 'show-help-text', SHOW_HELP_TEXT_DEFAULT)
info_params['show_correct'] = show_correct
# Find the true answer to be able to display it in the info popup
ans_true = None
if pl.get_boolean_attrib(element, 'show-correct-answer',
SHOW_CORRECT_ANSWER_DEFAULT):
ans_true = format_true_ans(element, data, name)
if ans_true is not None:
info_params['a_tru'] = ans_true
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
# Within mustache, the shortformat generates the shortinfo that is used as a placeholder inside of the numeric entry.
# Here we opt to not generate the value, hence the placeholder is empty.
info_params['shortformat'] = pl.get_boolean_attrib(
element, 'show-placeholder', SHOW_PLACEHOLDER_DEFAULT)
shortinfo = chevron.render(f, info_params).strip()
html_params['info'] = info
html_params['shortinfo'] = shortinfo
# Determine the title of the popup based on what information is being shown
if pl.get_boolean_attrib(element, 'show-help-text',
SHOW_HELP_TEXT_DEFAULT):
html_params['popup_title'] = 'Number'
else:
html_params['popup_title'] = 'Correct Answer'
# Enable or disable the popup
if pl.get_boolean_attrib(element, 'show-help-text',
SHOW_HELP_TEXT_DEFAULT) or show_correct:
html_params['show_info'] = True
html_params[
'display_append_span'] = 'questionmark' in html_params or suffix
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError(
'method of display "%s" is not valid (must be "inline" or "block")'
% display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
html_params['suffix'] = suffix
html_params['a_sub'] = '{:.12g}'.format(a_sub)
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
# Add true answer to be able to display it in the submitted answer panel
ans_true = None
if pl.get_boolean_attrib(element, 'show-correct-answer',
SHOW_CORRECT_ANSWER_DEFAULT):
ans_true = format_true_ans(element, data, name)
if ans_true is not None:
html_params['a_tru'] = ans_true
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
ans_true = format_true_ans(element, data, name)
if ans_true is not None:
html_params = {
'answer': True,
'label': label,
'a_tru': ans_true,
'suffix': suffix
}
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
label = pl.get_string_attrib(element, 'label', None)
suffix = pl.get_string_attrib(element, 'suffix', None)
display = pl.get_string_attrib(element, 'display', 'inline')
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
info_params = {
'format': True,
'relabs': True,
'rtol': rtol,
'atol': atol
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {
'format': True,
'sigfig': True,
'digits': digits,
'comparison_eps': 0.51 * (10**-(digits - 1))
}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {
'format': True,
'decdig': True,
'digits': digits,
'comparison_eps': 0.51 * (10**-(digits - 0))
}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
info_params['allow_complex'] = pl.get_boolean_attrib(
element, 'allow_complex', False)
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'suffix': suffix,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError(
'method of display "%s" is not valid (must be "inline" or "block")'
% display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
html_params['suffix'] = suffix
html_params['a_sub'] = '{:.12g}'.format(a_sub)
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
a_tru = '{:.12g}'.format(a_tru)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = pl.string_from_number_sigfig(a_tru, digits=digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = '{:.{ndigits}f}'.format(a_tru, ndigits=digits)
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
# FIXME: render correctly with respect to method of comparison
html_params = {
'answer': True,
'label': label,
'a_tru': a_tru,
'suffix': suffix
}
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def get_objects(element, data):
obj_list = []
for child in element:
is_stl = (child.tag in ['pl-threejs-stl', 'pl_threejs_stl'])
is_txt = (child.tag in ['pl-threejs-txt', 'pl_threejs_txt'])
if not (is_stl or is_txt):
continue
# Type-specific check and get (stl)
if is_stl:
# Attributes
pl.check_attribs(child,
required_attribs=['file-name'],
optional_attribs=[
'file-directory', 'frame', 'color',
'position', 'orientation', 'format', 'scale',
'opacity'
])
# - file-name (and file-directory)
file_url = get_file_url(child, data)
# - type
object_type = 'stl'
# - object
specific = {'type': object_type, 'file_url': file_url}
# Type-specific check and get (txt)
if is_txt:
# Attributes
pl.check_attribs(child,
required_attribs=[],
optional_attribs=[
'frame', 'color', 'position', 'orientation',
'format', 'scale', 'opacity'
])
# - text
text = pl.inner_html(child)
# - type
object_type = 'txt'
# - object
specific = {'type': object_type, 'text': text}
# Common
# - frame
frame = pl.get_string_attrib(child, 'frame', 'body')
if frame not in ['body', 'space']:
raise Exception(
'"frame" must be either "body" or "space": {:s}'.format(frame))
if frame == 'body':
default_color = '#e84a27'
default_opacity = 0.7
else:
default_color = '#13294b'
default_opacity = 0.4
# - color
color = pl.get_color_attrib(child, 'color', default_color)
# - opacity
opacity = pl.get_float_attrib(child, 'opacity', default_opacity)
# - position
p = pl.get_string_attrib(child, 'position', '[0, 0, 0]')
try:
position = np.array(json.loads(p), dtype=np.float64)
if position.shape == (3, ):
position = position.tolist()
else:
raise ValueError()
except Exception:
raise Exception(
'attribute "position" must have format [x, y, z]: {:s}'.format(
p))
# - orientation (and format)
orientation = get_orientation(child, 'orientation', 'format')
# - scale
scale = pl.get_float_attrib(child, 'scale', 1.0)
common = {
'frame': frame,
'color': color,
'opacity': opacity,
'position': position,
'quaternion': orientation,
'scale': scale
}
obj = {**specific, **common}
obj_list.append(obj)
return obj_list
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
# get the name of the element, in this case, the name of the array
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
allow_partial_credit = pl.get_boolean_attrib(element, 'allow-partial-credit', False)
allow_feedback = pl.get_boolean_attrib(element, 'allow-feedback', allow_partial_credit)
if data['panel'] == 'question':
editable = data['editable']
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
raise Exception('No value in data["correct_answers"] for variable %s in pl-matrix-component-input element' % name)
else:
if np.isscalar(a_tru):
raise Exception('Value in data["correct_answers"] for variable %s in pl-matrix-component-input element cannot be a scalar.' % name)
else:
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise Exception('Value in data["correct_answers"] for variable %s in pl-matrix-component-input element must be a 2D array.' % name)
else:
m, n = np.shape(a_tru)
input_array = createTableForHTMLDisplay(m, n, name, label, data, 'input')
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
if (rtol < 0):
raise ValueError('Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError('Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {'format': True, 'relabs': True, 'rtol': '{:g}'.format(rtol), 'atol': '{:g}'.format(atol)}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'sigfig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 1))}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'decdig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 0))}
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'input_array': input_array,
'inline': True,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
a_tru = pl.from_json(data['correct_answers'].get(name, None))
m, n = np.shape(a_tru)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# Format submitted answer as a latex string
sub_latex = '$' + pl.latex_from_2darray(a_sub, presentation_type='g', digits=12) + '$'
# When allowing feedback, display submitted answers using html table
sub_html_table = createTableForHTMLDisplay(m, n, name, label, data, 'output-feedback')
if allow_feedback and score is not None:
if score < 1:
html_params['a_sub_feedback'] = sub_html_table
else:
html_params['a_sub'] = sub_latex
else:
html_params['a_sub'] = sub_latex
else:
# create html table to show submitted answer when there is an invalid format
html_params['raw_submitted_answer'] = createTableForHTMLDisplay(m, n, name, label, data, 'output-invalid')
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters and create the display data
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
latex_data = '$' + pl.latex_from_2darray(a_tru, presentation_type='g', digits=12) + '$'
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(a_tru, presentation_type='sigfig', digits=digits) + '$'
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(a_tru, presentation_type='f', digits=digits) + '$'
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
html_params = {
'answer': True,
'label': label,
'latex_data': latex_data,
'uuid': pl.get_uuid()
}
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
