def RGB_colourspace_models_transformation_matrix_widget():
title_Label = Label('RGB Colourspace Models Transformation Matrix')
title_Label.add_class('widget-title')
default_layout = {'flex': '1 1 auto', 'width': 'auto'}
input_colourspace_Dropdown = Dropdown(
options=sorted(colour.RGB_COLOURSPACES), layout=default_layout)
output_colourspace_Dropdown = Dropdown(
options=sorted(colour.RGB_COLOURSPACES), layout=default_layout)
chromatic_adaptation_transforms_Dropdown = Dropdown(
options=sorted(colour.CHROMATIC_ADAPTATION_TRANSFORMS),
layout=default_layout)
formatter_Dropdown = Dropdown(
options=['str', 'repr', 'Nuke'], layout=default_layout)
decimals_IntSlider = IntSlider(value=10, max=15, layout=default_layout)
RGB_to_RGB_matrix_Textarea = Textarea(rows=3, layout=default_layout)
RGB_to_RGB_matrix_Textarea.add_class('widget-output-textarea')
def set_RGB_to_RGB_matrix_Textarea():
M = colour.RGB_to_RGB_matrix(
colour.RGB_COLOURSPACES[input_colourspace_Dropdown.value],
colour.RGB_COLOURSPACES[output_colourspace_Dropdown.value],
chromatic_adaptation_transforms_Dropdown.value)
with colour.utilities.numpy_print_options(
formatter={
'float':
('{{:0.{0}f}}'.format(decimals_IntSlider.value)).format
},
threshold=np.nan):
if formatter_Dropdown.value == 'str':
M = str(M)
elif formatter_Dropdown.value == 'repr':
M = repr(M)
else:
M = NUKE_COLORMATRIX_NODE_TEMPLATE.format(
nuke_format_matrix(M, decimals_IntSlider.value),
'{0}_to_{1}'.format(
input_colourspace_Dropdown.value.replace(' ', '_'),
output_colourspace_Dropdown.value.replace(' ', '_')))
RGB_to_RGB_matrix_Textarea.rows = len(M.split('\n'))
RGB_to_RGB_matrix_Textarea.value = M
def on_input_change(change):
if change['type'] == 'change' and change['name'] == 'value':
set_RGB_to_RGB_matrix_Textarea()
input_colourspace_Dropdown.observe(on_input_change)
output_colourspace_Dropdown.observe(on_input_change)
chromatic_adaptation_transforms_Dropdown.observe(on_input_change)
formatter_Dropdown.observe(on_input_change)
decimals_IntSlider.observe(on_input_change)
set_RGB_to_RGB_matrix_Textarea()
widget = Box([
VBox(
[
title_Label,
Textarea(
'This widget computes the colour transformation '
'matrix from the Input RGB Colourspace to the '
'Output RGB Colourspace using the given '
'Chromatic Adaptation Transform.',
rows=2,
layout=default_layout),
Label('Input RGB Colourspace'),
input_colourspace_Dropdown,
Label('Output RGB Colourspace'),
output_colourspace_Dropdown,
Label('Chromatic Adaptation Transform'),
chromatic_adaptation_transforms_Dropdown,
Label('Formatter'),
formatter_Dropdown,
HBox([Label('Decimals:'), decimals_IntSlider]),
Label('RGB Transformation Matrix'),
RGB_to_RGB_matrix_Textarea,
],
layout={
'border': 'solid 2px',
'width': '55%'
})
])
return widget
def RGB_colourspace_models_chromatically_adapted_primaries_widget():
title_Label = Label(
'RGB Colourspace Models Chromatically Adapted Primaries')
title_Label.add_class('widget-title')
default_layout = {'flex': '1 1 auto', 'width': 'auto'}
input_colourspace_Dropdown = Dropdown(
options=sorted(colour.RGB_COLOURSPACES), layout=default_layout)
illuminant_Dropdown = Dropdown(
options=sorted(
colour.ILLUMINANTS['CIE 1931 2 Degree Standard Observer']),
layout=default_layout)
chromatic_adaptation_transforms_Dropdown = Dropdown(
options=sorted(colour.CHROMATIC_ADAPTATION_TRANSFORMS),
layout=default_layout)
formatter_Dropdown = Dropdown(
options=['str', 'repr'], layout=default_layout)
decimals_IntSlider = IntSlider(value=10, max=15, layout=default_layout)
primaries_Textarea = Textarea(rows=3, layout=default_layout)
primaries_Textarea.add_class('widget-output-textarea')
def set_primaries_Textarea():
input_colourspace = colour.RGB_COLOURSPACES[
input_colourspace_Dropdown.value]
P = colour.chromatically_adapted_primaries(
input_colourspace.primaries, input_colourspace.whitepoint,
colour.ILLUMINANTS['CIE 1931 2 Degree Standard Observer'][
illuminant_Dropdown.value],
chromatic_adaptation_transforms_Dropdown.value)
with colour.utilities.numpy_print_options(
formatter={
'float':
('{{:0.{0}f}}'.format(decimals_IntSlider.value)).format
},
threshold=np.nan):
if formatter_Dropdown.value == 'str':
P = str(P)
elif formatter_Dropdown.value == 'repr':
P = repr(P)
primaries_Textarea.rows = len(P.split('\n'))
primaries_Textarea.value = P
def on_input_change(change):
if change['type'] == 'change' and change['name'] == 'value':
set_primaries_Textarea()
input_colourspace_Dropdown.observe(on_input_change)
illuminant_Dropdown.observe(on_input_change)
chromatic_adaptation_transforms_Dropdown.observe(on_input_change)
formatter_Dropdown.observe(on_input_change)
decimals_IntSlider.observe(on_input_change)
set_primaries_Textarea()
widget = Box([
VBox(
[
title_Label,
Textarea(
'This widget computes the Chromatically Adapted Primaries '
'of the given RGB Colourspace Model to the given '
'Illuminant using the '
'given Chromatic Adaptation Transform.',
rows=3,
layout=default_layout),
Label('Input RGB Colourspace'),
input_colourspace_Dropdown,
Label('Illuminant'),
illuminant_Dropdown,
Label('Chromatic Adaptation Transform'),
chromatic_adaptation_transforms_Dropdown,
Label('Formatter'),
formatter_Dropdown,
HBox([Label('Decimals:'), decimals_IntSlider]),
Label('RGB Transformation Matrix'),
primaries_Textarea,
],
layout={
'border': 'solid 2px',
'width': '55%'
})
])
return widget