def vtkKWColorPresetMenuEntryPoint(parent, win):
app = parent.GetApplication()
# -----------------------------------------------------------------------
# Create the color transfer function that will be modified by
# our choice of preset
cpsel_func = vtkColorTransferFunction()
# Create a color transfer function editor to show how the
# color transfer function is affected by our choices
cpsel_tfunc_editor = vtkKWColorTransferFunctionEditor()
cpsel_tfunc_editor.SetParent(parent)
cpsel_tfunc_editor.Create()
cpsel_tfunc_editor.SetBorderWidth(2)
cpsel_tfunc_editor.SetReliefToGroove()
cpsel_tfunc_editor.ExpandCanvasWidthOff()
cpsel_tfunc_editor.SetCanvasWidth(200)
cpsel_tfunc_editor.SetCanvasHeight(30)
cpsel_tfunc_editor.SetPadX(2)
cpsel_tfunc_editor.SetPadY(2)
cpsel_tfunc_editor.ParameterRangeVisibilityOff()
cpsel_tfunc_editor.ParameterEntryVisibilityOff()
cpsel_tfunc_editor.ParameterRangeLabelVisibilityOff()
cpsel_tfunc_editor.ColorSpaceOptionMenuVisibilityOff()
cpsel_tfunc_editor.ReadOnlyOn()
cpsel_tfunc_editor.SetColorTransferFunction(cpsel_func)
cpsel_tfunc_editor.SetBalloonHelpString(
"A color transfer function editor to demonstrate how the color "
"transfer function is affected by our choice of preset")
# -----------------------------------------------------------------------
app.Script(
"proc update_editor {name} {%s Update}", cpsel_tfunc_editor.GetTclName())
# Create a color preset selector
cpsel1 = vtkKWColorPresetMenu()
cpsel1.SetParent(parent)
cpsel1.Create()
cpsel1.SetColorTransferFunction(cpsel_func)
cpsel1.SetPresetSelectedCommand(None, "update_editor")
cpsel1.SetBalloonHelpString(
"A set of predefined color presets. Select one of them to apply the "
"preset to a color transfer function (vtkColorTransferFunction)")
app.Script(
"pack %s -side top -anchor nw -expand n -padx 2 -pady 2",
cpsel1.GetWidgetName())
# -----------------------------------------------------------------------
# Create another color preset selector, only the solid color
cpsel2 = vtkKWColorPresetMenu()
cpsel2.SetParent(parent)
cpsel2.Create()
cpsel2.SetLabelText("Solid Color Presets:")
cpsel2.GradientPresetsVisibilityOff()
cpsel2.SetColorTransferFunction(cpsel_func)
cpsel2.SetPresetSelectedCommand(None, "update_editor")
cpsel2.SetBalloonHelpString(
"A set of predefined color presets. Let's hide the gradient presets.")
app.Script(
"pack %s -side top -anchor nw -expand n -padx 2 -pady 2",
cpsel2.GetWidgetName())
# -----------------------------------------------------------------------
# Create another color preset selector, custom colors
cpsel3 = vtkKWColorPresetMenu()
cpsel3.SetParent(parent)
cpsel3.Create()
cpsel3.SetLabelPositionToRight()
cpsel3.SetColorTransferFunction(cpsel_func)
cpsel3.SetPresetSelectedCommand(None, "update_editor")
cpsel3.RemoveAllPresets()
cpsel3.SetPreviewSize(cpsel3.GetPreviewSize() * 2)
cpsel3.SetLabelText("Custom Color Presets")
cpsel3.AddSolidRGBPreset("Gray", 0.3, 0.3, 0.3)
cpsel3.AddSolidHSVPreset("Yellow", 0.15, 1.0, 1.0)
cpsel3.AddGradientRGBPreset(
"Blue to Red", 0.0, 0.0, 1.0, 1.0, 0.0, 0.0)
cpsel3.AddGradientHSVPreset(
"Yellow to Magenta", 0.15, 1.0, 1.0, 0.83, 1.0, 1.0)
cpsel3.SetBalloonHelpString(
"A set of color presets. Just ours. Double the size of the preview and "
"put the label on the right.")
app.Script(
"pack %s -side top -anchor nw -expand n -padx 2 -pady 2",
cpsel3.GetWidgetName())
app.Script(
"pack %s -side top -anchor nw -expand n -padx 2 -pady 20",
cpsel_tfunc_editor.GetWidgetName())
return "TypeVTK"
def vtkKWColorTransferFunctionEditorEntryPoint(parent, win):
app = parent.GetApplication()
# Create the color transfer function that is modified by the 1st editor
cpsel_tfunc1 = vtkColorTransferFunction()
cpsel_tfunc1.SetColorSpaceToHSV()
cpsel_tfunc1.AddHSVPoint(0.0, 0.66, 1.0, 1.0)
cpsel_tfunc1.AddHSVPoint(512.0, 0.33, 1.0, 1.0)
cpsel_tfunc1.AddHSVPoint(1024.0, 0.0, 1.0, 1.0)
# Create a color transfer function editor
# Assign our tfunc to the editor
# Make sure we show the whole range of the tfunc
cpsel_tfunc1_editor = vtkKWColorTransferFunctionEditor()
cpsel_tfunc1_editor.SetParent(parent)
cpsel_tfunc1_editor.Create()
cpsel_tfunc1_editor.SetBorderWidth(2)
cpsel_tfunc1_editor.SetReliefToGroove()
cpsel_tfunc1_editor.SetPadX(2)
cpsel_tfunc1_editor.SetPadY(2)
cpsel_tfunc1_editor.ParameterRangeVisibilityOff()
cpsel_tfunc1_editor.SetCanvasHeight(30)
cpsel_tfunc1_editor.SetBalloonHelpString(
"A color transfer function editor. Double-click on a point to pop-up "
"a color chooser. The parameter range slider is hidden in this one.")
cpsel_tfunc1_editor.SetColorTransferFunction(cpsel_tfunc1)
cpsel_tfunc1_editor.SetWholeParameterRangeToFunctionRange()
cpsel_tfunc1_editor.SetVisibleParameterRangeToWholeParameterRange()
app.Script("pack %s -side top -anchor nw -expand n -padx 2 -pady 2",
cpsel_tfunc1_editor.GetWidgetName())
# -----------------------------------------------------------------------
# This other transfer function editor is based on a real image data
# Let's load it first
cpsel_reader = vtkXMLImageDataReader()
cpsel_reader.SetFileName(
os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "..",
"..", "..", "Data", "head100x100x47.vti"))
# The build an histogram of the data, it will be used inside the editor
# as if we were trying to tune a tfunc based on the real values
cpsel_reader.Update()
cpsel_hist = vtkKWHistogram()
cpsel_hist.BuildHistogram(
cpsel_reader.GetOutput().GetPointData().GetScalars(), 0)
range = cpsel_hist.GetRange()
# Create the color transfer function that will be modified by the 2nd editor
# This one shows a different look & feel
cpsel_tfunc2 = vtkColorTransferFunction()
cpsel_tfunc2.SetColorSpaceToHSV()
cpsel_tfunc2.AddHSVPoint(range[0], 0.66, 1.0, 1.0)
cpsel_tfunc2.AddHSVPoint((range[0] + range[1]) * 0.5, 0.0, 1.0, 1.0)
cpsel_tfunc2.AddHSVPoint(range[1], 0.33, 1.0, 1.0)
# Create a color transfer function editor
# Assign our tfunc to the editor
# Make sure we show the whole range of the tfunc
# Use an histogram
cpsel_tfunc2_editor = vtkKWColorTransferFunctionEditor()
cpsel_tfunc2_editor.SetParent(parent)
cpsel_tfunc2_editor.Create()
cpsel_tfunc2_editor.SetBorderWidth(2)
cpsel_tfunc2_editor.SetReliefToGroove()
cpsel_tfunc2_editor.SetPadX(2)
cpsel_tfunc2_editor.SetPadY(2)
cpsel_tfunc2_editor.ExpandCanvasWidthOff()
cpsel_tfunc2_editor.SetCanvasWidth(450)
cpsel_tfunc2_editor.SetCanvasHeight(150)
cpsel_tfunc2_editor.SetLabelText("Transfer Function Editor")
cpsel_tfunc2_editor.SetRangeLabelPositionToTop()
cpsel_tfunc2_editor.SetBalloonHelpString(
"Another color transfer function editor. The point position is now on "
"top, the point style is an arrow down, guidelines are shown for each "
"point (useful when combined with an histogram), point indices are "
"hidden, ticks are displayed in the parameter space, the label "
"and the parameter range are on top, its width is set explicitly. "
"The range and histogram are based on a real image data.")
cpsel_tfunc2_editor.SetColorTransferFunction(cpsel_tfunc2)
cpsel_tfunc2_editor.SetWholeParameterRangeToFunctionRange()
cpsel_tfunc2_editor.SetVisibleParameterRangeToWholeParameterRange()
cpsel_tfunc2_editor.SetPointPositionInValueRangeToTop()
cpsel_tfunc2_editor.SetPointStyleToCursorDown()
cpsel_tfunc2_editor.FunctionLineVisibilityOff()
cpsel_tfunc2_editor.PointGuidelineVisibilityOn()
cpsel_tfunc2_editor.PointIndexVisibilityOff()
cpsel_tfunc2_editor.SelectedPointIndexVisibilityOn()
cpsel_tfunc2_editor.MidPointEntryVisibilityOn()
cpsel_tfunc2_editor.SharpnessEntryVisibilityOn()
cpsel_tfunc2_editor.SetLabelPositionToTop()
cpsel_tfunc2_editor.SetHistogram(cpsel_hist)
cpsel_tfunc2_editor.ParameterTicksVisibilityOn()
cpsel_tfunc2_editor.ComputeValueTicksFromHistogramOn()
cpsel_tfunc2_editor.SetParameterTicksFormat("%-#6.0f")
app.Script("pack %s -side top -anchor nw -expand n -padx 2 -pady 20",
cpsel_tfunc2_editor.GetWidgetName())
return "TypeVTK"
def vtkKWColorTransferFunctionEditorEntryPoint(parent, win):
app = parent.GetApplication()
# Create the color transfer function that is modified by the 1st editor
cpsel_tfunc1 = vtkColorTransferFunction()
cpsel_tfunc1.SetColorSpaceToHSV()
cpsel_tfunc1.AddHSVPoint(0.0, 0.66, 1.0, 1.0)
cpsel_tfunc1.AddHSVPoint(512.0, 0.33, 1.0, 1.0)
cpsel_tfunc1.AddHSVPoint(1024.0, 0.0, 1.0, 1.0)
# Create a color transfer function editor
# Assign our tfunc to the editor
# Make sure we show the whole range of the tfunc
cpsel_tfunc1_editor = vtkKWColorTransferFunctionEditor()
cpsel_tfunc1_editor.SetParent(parent)
cpsel_tfunc1_editor.Create()
cpsel_tfunc1_editor.SetBorderWidth(2)
cpsel_tfunc1_editor.SetReliefToGroove()
cpsel_tfunc1_editor.SetPadX(2)
cpsel_tfunc1_editor.SetPadY(2)
cpsel_tfunc1_editor.ParameterRangeVisibilityOff()
cpsel_tfunc1_editor.SetCanvasHeight(30)
cpsel_tfunc1_editor.SetBalloonHelpString(
"A color transfer function editor. Double-click on a point to pop-up "
"a color chooser. The parameter range slider is hidden in this one.")
cpsel_tfunc1_editor.SetColorTransferFunction(cpsel_tfunc1)
cpsel_tfunc1_editor.SetWholeParameterRangeToFunctionRange()
cpsel_tfunc1_editor.SetVisibleParameterRangeToWholeParameterRange()
app.Script(
"pack %s -side top -anchor nw -expand n -padx 2 -pady 2",
cpsel_tfunc1_editor.GetWidgetName())
# -----------------------------------------------------------------------
# This other transfer function editor is based on a real image data
# Let's load it first
cpsel_reader = vtkXMLImageDataReader()
cpsel_reader.SetFileName(os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"..", "..", "..", "..", "Data", "head100x100x47.vti"))
# The build an histogram of the data, it will be used inside the editor
# as if we were trying to tune a tfunc based on the real values
cpsel_reader.Update()
cpsel_hist = vtkKWHistogram()
cpsel_hist.BuildHistogram(
cpsel_reader.GetOutput().GetPointData().GetScalars(), 0)
range = cpsel_hist.GetRange()
# Create the color transfer function that will be modified by the 2nd editor
# This one shows a different look & feel
cpsel_tfunc2 = vtkColorTransferFunction()
cpsel_tfunc2.SetColorSpaceToHSV()
cpsel_tfunc2.AddHSVPoint(range[0], 0.66, 1.0, 1.0)
cpsel_tfunc2.AddHSVPoint((range[0] + range[1]) * 0.5, 0.0, 1.0, 1.0)
cpsel_tfunc2.AddHSVPoint(range[1], 0.33, 1.0, 1.0)
# Create a color transfer function editor
# Assign our tfunc to the editor
# Make sure we show the whole range of the tfunc
# Use an histogram
cpsel_tfunc2_editor = vtkKWColorTransferFunctionEditor()
cpsel_tfunc2_editor.SetParent(parent)
cpsel_tfunc2_editor.Create()
cpsel_tfunc2_editor.SetBorderWidth(2)
cpsel_tfunc2_editor.SetReliefToGroove()
cpsel_tfunc2_editor.SetPadX(2)
cpsel_tfunc2_editor.SetPadY(2)
cpsel_tfunc2_editor.ExpandCanvasWidthOff()
cpsel_tfunc2_editor.SetCanvasWidth(450)
cpsel_tfunc2_editor.SetCanvasHeight(150)
cpsel_tfunc2_editor.SetLabelText("Transfer Function Editor")
cpsel_tfunc2_editor.SetRangeLabelPositionToTop()
cpsel_tfunc2_editor.SetBalloonHelpString(
"Another color transfer function editor. The point position is now on "
"top, the point style is an arrow down, guidelines are shown for each "
"point (useful when combined with an histogram), point indices are "
"hidden, ticks are displayed in the parameter space, the label "
"and the parameter range are on top, its width is set explicitly. "
"The range and histogram are based on a real image data.")
cpsel_tfunc2_editor.SetColorTransferFunction(cpsel_tfunc2)
cpsel_tfunc2_editor.SetWholeParameterRangeToFunctionRange()
cpsel_tfunc2_editor.SetVisibleParameterRangeToWholeParameterRange()
cpsel_tfunc2_editor.SetPointPositionInValueRangeToTop()
cpsel_tfunc2_editor.SetPointStyleToCursorDown()
cpsel_tfunc2_editor.FunctionLineVisibilityOff()
cpsel_tfunc2_editor.PointGuidelineVisibilityOn()
cpsel_tfunc2_editor.PointIndexVisibilityOff()
cpsel_tfunc2_editor.SelectedPointIndexVisibilityOn()
cpsel_tfunc2_editor.MidPointEntryVisibilityOn()
cpsel_tfunc2_editor.SharpnessEntryVisibilityOn()
cpsel_tfunc2_editor.SetLabelPositionToTop()
cpsel_tfunc2_editor.SetHistogram(cpsel_hist)
cpsel_tfunc2_editor.ParameterTicksVisibilityOn()
cpsel_tfunc2_editor.ComputeValueTicksFromHistogramOn()
cpsel_tfunc2_editor.SetParameterTicksFormat("%-#6.0f")
app.Script(
"pack %s -side top -anchor nw -expand n -padx 2 -pady 20",
cpsel_tfunc2_editor.GetWidgetName())
return "TypeVTK"
