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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkFiltersCore import vtkContourFilter
from vtkmodules.vtkFiltersModeling import vtkOutlineFilter
from vtkmodules.vtkIOLegacy import vtkStructuredPointsReader
from vtkmodules.vtkImagingCore import (
vtkImageCast,
vtkImageClip,
)
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
import vtkmodules.test.Testing
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
class contour3DAll(vtkmodules.test.Testing.vtkTest):
class Colors(object):
'''
Provides some wrappers for using color names.
'''
def __init__(self):
'''
Define a single instance of the NamedColors class here.
'''
self.namedColors = 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 testContour3DAll(self):
# On older Macs, 10 is too low. Due to what looks like a driver bug
# spectral lighting behaves sort of weird and produces small differences
threshold = 30
# Create the RenderWindow, Renderer and both Actors
#
ren = vtkRenderer()
renWin = vtkRenderWindow()
renWin.AddRenderer(ren)
# create pipeline
#
slc = vtkStructuredPointsReader()
slc.SetFileName(VTK_DATA_ROOT + "/Data/ironProt.vtk")
actorColors = ["flesh", "banana", "grey", "pink", "carrot", "gainsboro", "tomato", "gold", "thistle", "chocolate"]
types = ["UnsignedChar", "Char", "Short", "UnsignedShort", "Int", "UnsignedInt", "Long", "UnsignedLong", "Float", "Double"]
i = 1
c = 0
clip = list()
cast = list()
iso = list()
mapper = list()
actor = list()
colors = self.Colors()
for idx, vtkType in enumerate(types):
clip.append(vtkImageClip())
clip[idx].SetInputConnection(slc.GetOutputPort())
clip[idx].SetOutputWholeExtent(-1000, 1000, -1000, 1000, i, i + 5)
i += 5
cast.append(vtkImageCast())
eval("cast[idx].SetOutputScalarTypeTo" + vtkType)
cast[idx].SetInputConnection(clip[idx].GetOutputPort())
cast[idx].ClampOverflowOn()
iso.append(vtkContourFilter())
iso[idx].SetInputConnection(cast[idx].GetOutputPort())
iso[idx].GenerateValues(1, 30, 30)
iso[idx].ComputeScalarsOff()
iso[idx].ComputeGradientsOff()
mapper.append(vtkPolyDataMapper())
mapper[idx].SetInputConnection(iso[idx].GetOutputPort())
actor.append(vtkActor())
actor[idx].SetMapper(mapper[idx])
eval('actor[idx].GetProperty().SetDiffuseColor(colors.GetRGBColor("' + actorColors[idx] + '"))')
actor[idx].GetProperty().SetSpecularPower(30)
actor[idx].GetProperty().SetDiffuse(.7)
actor[idx].GetProperty().SetSpecular(.5)
c += 3
ren.AddActor(actor[idx])
outline = vtkOutlineFilter()
outline.SetInputConnection(slc.GetOutputPort())
outlineMapper = vtkPolyDataMapper()
outlineMapper.SetInputConnection(outline.GetOutputPort())
outlineActor = vtkActor()
outlineActor.SetMapper(outlineMapper)
outlineActor.VisibilityOff()
# Add the actors to the renderer, set the background and size
#
ren.AddActor(outlineActor)
ren.SetBackground(0.9, .9, .9)
ren.ResetCamera()
ren.GetActiveCamera().SetViewAngle(30)
ren.GetActiveCamera().Elevation(20)
ren.GetActiveCamera().Azimuth(20)
ren.GetActiveCamera().Zoom(1.5)
ren.ResetCameraClippingRange()
renWin.SetSize(400, 400)
# render and interact with data
iRen = vtkRenderWindowInteractor()
iRen.SetRenderWindow(renWin);
renWin.Render()
img_file = "contour3DAll.png"
vtkmodules.test.Testing.compareImage(iRen.GetRenderWindow(), vtkmodules.test.Testing.getAbsImagePath(img_file))
vtkmodules.test.Testing.interact()
if __name__ == "__main__":
vtkmodules.test.Testing.main([(contour3DAll, 'test')])
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