Python vtk.vtkLookupTable() Examples

The following are 6 code examples of vtk.vtkLookupTable(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module vtk , or try the search function .
Example #1
Source File: vtkUtils.py    From 3d-nii-visualizer with MIT License 6 votes vote down vote up 
def create_mask_table():
    m_mask_opacity = 1
    brain_lut = vtk.vtkLookupTable()
    brain_lut.SetRange(0, 4)
    brain_lut.SetRampToLinear()
    brain_lut.SetValueRange(0, 1)
    brain_lut.SetHueRange(0, 0)
    brain_lut.SetSaturationRange(0, 0)

    brain_lut.SetNumberOfTableValues(10)
    brain_lut.SetTableRange(0, 9)
    brain_lut.SetTableValue(0, 0, 0, 0, 0)
    brain_lut.SetTableValue(1, 1, 0, 0, m_mask_opacity)  # RED
    brain_lut.SetTableValue(2, 0, 1, 0, m_mask_opacity)  # GREEN
    brain_lut.SetTableValue(3, 1, 1, 0, m_mask_opacity)  # YELLOW
    brain_lut.SetTableValue(4, 0, 0, 1, m_mask_opacity)  # BLUE
    brain_lut.SetTableValue(5, 1, 0, 1, m_mask_opacity)  # MAGENTA
    brain_lut.SetTableValue(6, 0, 1, 1, m_mask_opacity)  # CYAN
    brain_lut.SetTableValue(7, 1, 0.5, 0.5, m_mask_opacity)  # RED_2
    brain_lut.SetTableValue(8, 0.5, 1, 0.5, m_mask_opacity)  # GREEN_2
    brain_lut.SetTableValue(9, 0.5, 0.5, 1, m_mask_opacity)  # BLUE_2
    brain_lut.Build()
    return brain_lut
Example #2
Source File: test_code_vasp_01.py    From PyChemia with MIT License 6 votes vote down vote up 
def MakeLUT():
    """
    Make a lookup table using vtkColorSeries.
    :return: An indexed lookup table.
    """
    # Make the lookup table.
    colorSeries = vtk.vtkColorSeries()
    # Select a color scheme.
    # colorSeriesEnum = colorSeries.BREWER_DIVERGING_BROWN_BLUE_GREEN_9
    # colorSeriesEnum = colorSeries.BREWER_DIVERGING_SPECTRAL_10
    # colorSeriesEnum = colorSeries.BREWER_DIVERGING_SPECTRAL_3
    # colorSeriesEnum = colorSeries.BREWER_DIVERGING_PURPLE_ORANGE_9
    # colorSeriesEnum = colorSeries.BREWER_SEQUENTIAL_BLUE_PURPLE_9
    # colorSeriesEnum = colorSeries.BREWER_SEQUENTIAL_BLUE_GREEN_9
    colorSeriesEnum = colorSeries.BREWER_QUALITATIVE_SET3
    # colorSeriesEnum = colorSeries.CITRUS
    colorSeries.SetColorScheme(colorSeriesEnum)
    lut = vtk.vtkLookupTable()
    colorSeries.BuildLookupTable(lut)
    lut.SetNanColor(1, 0, 0, 1)
    return lut
Example #3
Source File: test_code_vasp_01.py    From PyChemia with MIT License 6 votes vote down vote up 
def ReverseLUT(lut):
    """
    Create a lookup table with the colors reversed.
    :param: lut - An indexed lookup table.
    :return: The reversed indexed lookup table.
    """
    lutr = vtk.vtkLookupTable()
    lutr.DeepCopy(lut)
    t = lut.GetNumberOfTableValues() - 1
    for i in reversed(range(t + 1)):
        rgba = [0, 0, 0]
        v = float(i)
        lut.GetColor(v, rgba)
        rgba.append(lut.GetOpacity(v))
        lutr.SetTableValue(t - i, rgba)
    t = lut.GetNumberOfAnnotatedValues() - 1
    for i in reversed(range(t + 1)):
        lutr.SetAnnotation(t - i, lut.GetAnnotation(i))
    return lutr
Example #4
Source File: vtkUtils.py    From 3d-nii-visualizer with MIT License 5 votes vote down vote up 
def create_table():
    table = vtk.vtkLookupTable()
    table.SetRange(0.0, 1675.0)  # +1
    table.SetRampToLinear()
    table.SetValueRange(0, 1)
    table.SetHueRange(0, 0)
    table.SetSaturationRange(0, 0)
Example #5
Source File: vtkUtils.py    From 3d-nii-visualizer with MIT License 5 votes vote down vote up 
def setup_brain(renderer, file):
    brain = NiiObject()
    brain.file = file
    brain.reader = read_volume(brain.file)
    brain.labels.append(NiiLabel(BRAIN_COLORS[0], BRAIN_OPACITY, BRAIN_SMOOTHNESS))
    brain.labels[0].extractor = create_brain_extractor(brain)
    brain.extent = brain.reader.GetDataExtent()

    scalar_range = brain.reader.GetOutput().GetScalarRange()
    bw_lut = vtk.vtkLookupTable()
    bw_lut.SetTableRange(scalar_range)
    bw_lut.SetSaturationRange(0, 0)
    bw_lut.SetHueRange(0, 0)
    bw_lut.SetValueRange(0, 2)
    bw_lut.Build()

    view_colors = vtk.vtkImageMapToColors()
    view_colors.SetInputConnection(brain.reader.GetOutputPort())
    view_colors.SetLookupTable(bw_lut)
    view_colors.Update()
    brain.image_mapper = view_colors
    brain.scalar_range = scalar_range

    add_surface_rendering(brain, 0, sum(scalar_range)/2)  # render index, default extractor value
    renderer.AddActor(brain.labels[0].actor)
    return brain
Example #6
Source File: tessagon_vtk_demo.py    From tessagon with Apache License 2.0 5 votes vote down vote up 
def __init__(self):
        self.ren = vtk.vtkRenderer()
        self.renWin = vtk.vtkRenderWindow()
        self.renWin.AddRenderer(self.ren)
        self.iren = vtk.vtkRenderWindowInteractor()
        self.iren.SetRenderWindow(self.renWin)

        self.lut = vtk.vtkLookupTable()
        self.lut.SetHueRange(0.6, 0.6)
        self.lut.SetSaturationRange(.5, .5)
        self.lut.SetValueRange(0.2, 1.0)
        self.lut.SetNumberOfColors(256)
        self.lut.Build()