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VTK，（visualizationtoolkit）是一个开放资源的免费软件系统，主要用于三维计算机图形学、图像处理和可视化。Vtk是在面向对象原理的基础上设计和实现的，它的内核是用C++构建的，包含有大约250,000行代码，2000多个类，还包含有几个转换界面，因此也可以自由的通过Java，Tcl/Tk和Python各种语言使用vtk。
纹理映射概念： 计算机图形学中的纹理既包括通常意义上物体表面的纹理即使物体表面呈现凹凸不平的沟纹，同时也包括在物体的光滑表面上的彩色图案，通常我们更多地称之为花纹。对于花纹而言，就是在物体表面绘出彩色花纹或图案，产生了纹理后的物体表面依然光滑如故。对于沟纹而言，实际上也是要在表面绘出彩色花纹或图案，同时要求视觉上给人以凹凸不平感即可。纹理映射就是在物体的表面上绘制彩色的图案。
主要函数介绍
vtkImplicitTextureCoords 隐式纹理坐标滤波器，可以结合隐函数的使用而生成纹理坐标
vtkBooleanTexture vtkBooleanTexture是一种处理纹理贴图加载和与图像绑定的算法类，从输入图像数据集类型中获取数据。用户可以创建可视化管道来读取、处理和构造纹理。需要注意的是只有定义了纹理坐标并且渲染系统支持纹理时，纹理才会工作。
# noinspection PyUnresolvedReferences
import vtkmodules.vtkInteractionStyle
# noinspection PyUnresolvedReferences
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkCommonDataModel import vtkQuadric
from vtkmodules.vtkFiltersSources import vtkSphereSource
from vtkmodules.vtkFiltersTexture import vtkImplicitTextureCoords
from vtkmodules.vtkImagingHybrid import vtkBooleanTexture
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkDataSetMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
vtkTexture
)
positions = [
[-4, 4, 0], [-2, 4, 0], [0, 4, 0], [2, 4, 0],
[-4, 2, 0], [-2, 2, 0], [0, 2, 0], [2, 2, 0],
[-4, 0, 0], [-2, 0, 0], [0, 0, 0], [2, 0, 0],
[-4, -2, 0], [-2, -2, 0], [0, -2, 0], [2, -2, 0]
]
solid = [255, 255]
clear = [255, 0]
edge = [0, 255]
def main():
colors = vtkNamedColors()
renWin = vtkRenderWindow()
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
aren = vtkRenderer()
# define two elliptical cylinders
quadric1 = vtkQuadric()
quadric1.SetCoefficients(1, 2, 0, 0, 0, 0, 0, 0, 0, -.07)
quadric2 = vtkQuadric()
quadric2.SetCoefficients(2, 1, 0, 0, 0, 0, 0, 0, 0, -.07)
# Create a sphere for all to use.
aSphere = vtkSphereSource()
aSphere.SetPhiResolution(21)
aSphere.SetThetaResolution(21)
# Create texture coordinates for all.
tcoords = vtkImplicitTextureCoords()
tcoords.SetInputConnection(aSphere.GetOutputPort())
tcoords.SetRFunction(quadric1)
tcoords.SetSFunction(quadric2)
aMapper = vtkDataSetMapper()
aMapper.SetInputConnection(tcoords.GetOutputPort())
# 创建mapper、Create a mapper, 球体，纹理映射
for i in range(0, 16):
aBoolean = MakeBooleanTexture(i, 64, 0)
aTexture2 = vtkTexture()
aTexture2.SetInputConnection(aBoolean.GetOutputPort())
aTexture2.InterpolateOff()
aTexture2.RepeatOff()
anActor2 = vtkActor()
anActor2.SetMapper(aMapper)
anActor2.SetTexture(aTexture2)
anActor2.SetPosition(positions[i])
anActor2.SetScale(2.0, 2.0, 2.0)
anActor2.GetProperty().SetColor(colors.GetColor3d('MistyRose'))
aren.AddActor(anActor2)
aren.SetBackground(colors.GetColor3d('SlateGray'))
renWin.SetSize(500, 500)
renWin.AddRenderer(aren)
renWin.SetWindowName('TextureCutQuadric')
# Interact with the data.
renWin.Render()
iren.Start()
def MakeBooleanTexture(caseNumber, resolution, thickness):
booleanTexture = vtkBooleanTexture()
booleanTexture.SetXSize(resolution)
booleanTexture.SetYSize(resolution)
booleanTexture.SetThickness(thickness)
if caseNumber == 0:
booleanTexture.SetInIn(solid)
booleanTexture.SetOutIn(solid)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(solid)
booleanTexture.SetOnIn(solid)
booleanTexture.SetOnOut(solid)
booleanTexture.SetInOn(solid)
booleanTexture.SetOutOn(solid)
elif caseNumber == 1: # cut inside 1
booleanTexture.SetInIn(clear)
booleanTexture.SetOutIn(solid)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(solid)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(solid)
elif caseNumber == 2: # cut outside 1
booleanTexture.SetInIn(solid)
booleanTexture.SetOutIn(clear)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(solid)
booleanTexture.SetInOn(solid)
booleanTexture.SetOutOn(edge)
elif caseNumber == 3: # cut all 1
booleanTexture.SetInIn(clear)
booleanTexture.SetOutIn(clear)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(clear)
booleanTexture.SetOnOut(solid)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(edge)
elif caseNumber == 4:
booleanTexture.SetInIn(solid)
booleanTexture.SetOutIn(solid)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(solid)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(solid)
elif caseNumber == 5:
booleanTexture.SetInIn(clear)
booleanTexture.SetOutIn(solid)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(clear)
booleanTexture.SetOutOn(solid)
elif caseNumber == 6:
booleanTexture.SetInIn(solid)
booleanTexture.SetOutIn(clear)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(edge)
elif caseNumber == 7:
booleanTexture.SetInIn(clear)
booleanTexture.SetOutIn(clear)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutOut(solid)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(clear)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(clear)
booleanTexture.SetOutOn(edge)
elif caseNumber == 8:
booleanTexture.SetInIn(solid)
booleanTexture.SetOutIn(solid)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(solid)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(solid)
booleanTexture.SetOutOn(edge)
elif caseNumber == 9:
booleanTexture.SetInIn(clear)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutIn(solid)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(edge)
elif caseNumber == 10:
booleanTexture.SetInIn(solid)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutIn(clear)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(solid)
booleanTexture.SetOutOn(clear)
elif caseNumber == 11:
booleanTexture.SetInIn(clear)
booleanTexture.SetInOut(solid)
booleanTexture.SetOutIn(clear)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(clear)
booleanTexture.SetOnOut(edge)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(clear)
elif caseNumber == 12:
booleanTexture.SetInIn(solid)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutIn(solid)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(solid)
booleanTexture.SetOnOut(clear)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(edge)
elif caseNumber == 13:
booleanTexture.SetInIn(clear)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutIn(solid)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(clear)
booleanTexture.SetInOn(clear)
booleanTexture.SetOutOn(edge)
elif caseNumber == 14:
booleanTexture.SetInIn(solid)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutIn(clear)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(edge)
booleanTexture.SetOnIn(edge)
booleanTexture.SetOnOut(clear)
booleanTexture.SetInOn(edge)
booleanTexture.SetOutOn(clear)
else: # caseNumber == 15:
booleanTexture.SetInIn(clear)
booleanTexture.SetInOut(clear)
booleanTexture.SetOutIn(clear)
booleanTexture.SetOutOut(clear)
booleanTexture.SetOnOn(clear)
booleanTexture.SetOnIn(clear)
booleanTexture.SetOnOut(clear)
booleanTexture.SetInOn(clear)
booleanTexture.SetOutOn(clear)
return booleanTexture
if __name__ == '__main__':
main()
