def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
# Get the number of digits to output
digits = pl.get_integer_attrib(element, 'digits', 2)
# Get the presentation type
presentation_type = pl.get_string_attrib(element, 'presentation-type', 'f')
var_name = pl.get_string_attrib(element, 'params-name')
# Get value of variable, raising exception if variable does not exist
var_data = data['params'].get(var_name, None)
if var_data is None:
raise Exception('No value in data["params"] for variable %s in pl-matrix-latex element' % var_name)
# If the variable is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
var_data = pl.from_json(var_data)
if not np.isscalar(var_data):
var_data = np.array(var_data)
# Check if numpy array type is numeric (integer, float or complex)
if np.issubdtype(var_data.dtype, np.number):
# Check shape of variable
if var_data.ndim != 2:
raise Exception('Value in data["params"] for variable %s in pl-matrix-latex element must be 2D array or scalar' % var_name)
else:
raise Exception('Value in data["params"] for variable %s in pl-matrix-latex element must be numeric' % var_name)
# Create string for latex matrix format
html = pl.latex_from_2darray(var_data, presentation_type=presentation_type, digits=digits)
return html
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 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