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#!/usr/bin/env python
# Test interactions of scalar coloring with various ScalarMaterialMode
# settings.
import vtk
from vtk.test import Testing
renWin = vtk.vtkRenderWindow()
iRen = vtk.vtkRenderWindowInteractor()
iRen.SetRenderWindow(renWin)
renWin.SetSize(500, 600)
sphere = vtk.vtkSphereSource()
elev = vtk.vtkElevationFilter()
elev.SetLowPoint(-0.25, -0.25, -0.25)
elev.SetHighPoint(.25, .25, .25)
elev.SetInputConnection(sphere.GetOutputPort())
lut = vtk.vtkLookupTable()
lut.SetSaturationRange(0, 0)
lut.SetValueRange(0, 1)
lut.SetRange(0, 1)
lut.Build()
def add(**kwargs):
ren = vtk.vtkRenderer()
ren.SetBackground(0.5, 0.5, 0.5)
#ren.SetViewport(0, 0, 0.5, 1)
renWin.AddRenderer(ren)
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(elev.GetOutputPort())
mapper.SetLookupTable(lut)
mapper.SetInterpolateScalarsBeforeMapping(kwargs['interpolate_scalars_before_mapping'])
mapper.SetScalarMaterialMode(kwargs["material_mode"])
actor = vtk.vtkActor()
actor.SetMapper(mapper)
ren.AddActor(actor)
prop = actor.GetProperty()
prop.SetAmbient(kwargs['ambient'])
prop.SetDiffuse(kwargs['diffuse'])
prop.SetAmbientColor(1, 0, 0)
prop.SetDiffuseColor(0, 1, 0)
textActorL = vtk.vtkTextActor()
txt = " InterpolateScalarsBeforeMapping: %d\n"\
" ScalarMaterialMode: %s\n"\
" Ambient: %.2f\t Ambient Color: 1, 0, 0\n"\
" Diffuse: %.2f\t Diffuse Color: 0, 1, 0"
txt = txt % (kwargs['interpolate_scalars_before_mapping'],
mapper.GetScalarMaterialModeAsString(), prop.GetAmbient(), prop.GetDiffuse())
textActorL.SetInput(txt)
ren.AddActor(textActorL)
return (ren, actor, mapper)
ren, actor, mapper = add(interpolate_scalars_before_mapping=1, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_DEFAULT)
ren.SetViewport(0, 0, 0.5, 0.25)
ren, actor, mapper = add(interpolate_scalars_before_mapping=0, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_DEFAULT)
ren.SetViewport(0.5, 0, 1, 0.25)
ren, actor, mapper = add(interpolate_scalars_before_mapping=1, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_AMBIENT)
ren.SetViewport(0, 0.25, 0.5, 0.5)
ren, actor, mapper = add(interpolate_scalars_before_mapping=0, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_AMBIENT)
ren.SetViewport(0.5, 0.25, 1, 0.5)
ren, actor, mapper = add(interpolate_scalars_before_mapping=1, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_DIFFUSE)
ren.SetViewport(0, 0.5, 0.5, 0.75)
ren, actor, mapper = add(interpolate_scalars_before_mapping=0, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_DIFFUSE)
ren.SetViewport(0.5, 0.5, 1, 0.75)
ren, actor, mapper = add(interpolate_scalars_before_mapping=1, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_AMBIENT_AND_DIFFUSE)
ren.SetViewport(0, 0.75, 0.5, 1)
ren, actor, mapper = add(interpolate_scalars_before_mapping=0, ambient=0.49,
diffuse=0.51, material_mode=vtk.VTK_MATERIALMODE_AMBIENT_AND_DIFFUSE)
ren.SetViewport(0.5, 0.75, 1, 1)
#---------------------------------------------------------
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