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#!/usr/bin/env python
# -*- coding: utf-8 -*-
'''
=========================================================================
Program: Visualization Toolkit
Module: TestNamedColorsIntegration.py
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================
'''
import vtk
import vtk.test.Testing
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
class StyleBaseSpike(object):
class Colors(object):
'''
Provides some wrappers for using color names.
'''
def __init__(self):
'''
Define a single instance of the NamedColors class here.
'''
self.namedColors = vtk.vtkNamedColors()
def GetRGBColor(self, colorName):
'''
Return the red, green and blue components for a
color as doubles.
'''
rgb = [0.0, 0.0, 0.0] # black
self.namedColors.GetColorRGB(colorName, rgb)
return rgb
def GetRGBAColor(self, colorName):
'''
Return the red, green, blue and alpha
components for a color as doubles.
'''
rgba = [0.0, 0.0, 0.0, 1.0] # black
self.namedColors.GetColor(colorName, rgba)
return rgba
def __init__(self, ren, renWin, iren):
self.ren = ren
self.renWin = renWin
self.iren = iren
colors = self.Colors()
self.renWin.AddRenderer(self.ren)
self.iren.SetRenderWindow(self.renWin)
self.iren.SetDesiredUpdateRate(.00001)
# Create a sphere source and actor
sphere = vtk.vtkSphereSource()
sphereMapper = vtk.vtkPolyDataMapper()
sphereMapper.SetInputConnection(sphere.GetOutputPort())
sphereActor = vtk.vtkLODActor()
sphereActor.SetMapper(sphereMapper)
sphereActor.GetProperty().SetDiffuseColor(colors.GetRGBColor('banana'))
sphereActor.GetProperty().SetSpecular(.4)
sphereActor.GetProperty().SetSpecularPower(20)
# Create the spikes using a cone source and the sphere source
cone = vtk.vtkConeSource()
cone.SetResolution(20)
glyph = vtk.vtkGlyph3D()
glyph.SetInputConnection(sphere.GetOutputPort())
glyph.SetSourceConnection(cone.GetOutputPort())
glyph.SetVectorModeToUseNormal()
glyph.SetScaleModeToScaleByVector()
glyph.SetScaleFactor(0.25)
spikeMapper = vtk.vtkPolyDataMapper()
spikeMapper.SetInputConnection(glyph.GetOutputPort())
spikeActor = vtk.vtkLODActor()
spikeActor.SetMapper(spikeMapper)
spikeActor.GetProperty().SetDiffuseColor(colors.GetRGBColor('tomato'))
spikeActor.GetProperty().SetSpecular(.4)
spikeActor.GetProperty().SetSpecularPower(20)
# Add the actors to the renderer, set the background and size
self.ren.AddActor(sphereActor)
self.ren.AddActor(spikeActor)
self.ren.SetBackground(0.1, 0.2, 0.4)
self.renWin.SetSize(300, 300)
# Render the image
self.ren.ResetCamera()
cam1 = ren.GetActiveCamera()
cam1.Zoom(1.4)
cam1.Azimuth(30)
cam1.Elevation(30)
self.renWin.Render()
class TestStyleBaseSpike(vtk.test.Testing.vtkTest):
def testStyleBaseSpike(self):
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
iRen = vtk.vtkRenderWindowInteractor()
styleBaseSpike = StyleBaseSpike(ren, renWin, iRen)
# render and interact with data
renWin.Render()
img_file = "TestStyleBaseSpike.png"
vtk.test.Testing.compareImage(iRen.GetRenderWindow(), vtk.test.Testing.getAbsImagePath(img_file), threshold=25)
vtk.test.Testing.interact()
if __name__ == "__main__":
vtk.test.Testing.main([(TestStyleBaseSpike, 'test')])
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