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#!/usr/bin/env python
import vtk
from vtk.test import Testing
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
import sys
class TestClip(Testing.vtkTest):
def testImage(self):
r = vtk.vtkRTAnalyticSource()
r.SetWholeExtent(-5, 5, -5, 5, -5, 5)
r.Update()
s = vtk.vtkSphere()
s.SetRadius(2)
s.SetCenter(0,0,0)
c = vtk.vtkTableBasedClipDataSet()
c.SetInputConnection(r.GetOutputPort())
c.SetClipFunction(s)
c.SetInsideOut(1)
c.Update()
self.assertEqual(c.GetOutput().GetNumberOfCells(), 64)
def testRectilinear(self):
rt = vtk.vtkRTAnalyticSource()
rt.SetWholeExtent(-5, 5, -5, 5, -5, 5)
rt.Update()
i = rt.GetOutput()
r = vtk.vtkRectilinearGrid()
dims = i.GetDimensions()
r.SetDimensions(dims)
exts = i.GetExtent()
orgs = i.GetOrigin()
xs = vtk.vtkFloatArray()
xs.SetNumberOfTuples(dims[0])
for d in range(dims[0]):
xs.SetTuple1(d, orgs[0] + exts[0] + d)
r.SetXCoordinates(xs)
ys = vtk.vtkFloatArray()
ys.SetNumberOfTuples(dims[1])
for d in range(dims[1]):
ys.SetTuple1(d, orgs[1] + exts[2] + d)
r.SetYCoordinates(ys)
zs = vtk.vtkFloatArray()
zs.SetNumberOfTuples(dims[2])
for d in range(dims[2]):
zs.SetTuple1(d, orgs[2] + exts[4] + d)
r.SetZCoordinates(zs)
s = vtk.vtkSphere()
s.SetRadius(2)
s.SetCenter(0,0,0)
c = vtk.vtkTableBasedClipDataSet()
c.SetInputData(r)
c.SetClipFunction(s)
c.SetInsideOut(1)
c.Update()
self.assertEqual(c.GetOutput().GetNumberOfCells(), 64)
def testStructured(self):
rt = vtk.vtkRTAnalyticSource()
rt.SetWholeExtent(-5, 5, -5, 5, -5, 5)
rt.Update()
i = rt.GetOutput()
st = vtk.vtkStructuredGrid()
st.SetDimensions(i.GetDimensions())
nps = i.GetNumberOfPoints()
ps = vtk.vtkPoints()
ps.SetNumberOfPoints(nps)
for idx in xrange(nps):
ps.SetPoint(idx, i.GetPoint(idx))
st.SetPoints(ps)
s = vtk.vtkSphere()
s.SetRadius(2)
s.SetCenter(0,0,0)
c = vtk.vtkTableBasedClipDataSet()
c.SetInputData(st)
c.SetClipFunction(s)
c.SetInsideOut(1)
c.Update()
self.assertEqual(c.GetOutput().GetNumberOfCells(), 64)
def testUnstructured(self):
rt = vtk.vtkRTAnalyticSource()
rt.SetWholeExtent(-5, 5, -5, 5, -5, 5)
t = vtk.vtkThreshold()
t.SetInputConnection(rt.GetOutputPort())
t.ThresholdByUpper(-10)
s = vtk.vtkSphere()
s.SetRadius(2)
s.SetCenter(0,0,0)
c = vtk.vtkTableBasedClipDataSet()
c.SetInputConnection(t.GetOutputPort())
c.SetClipFunction(s)
c.SetInsideOut(1)
c.Update()
self.assertEqual(c.GetOutput().GetNumberOfCells(), 64)
eg = vtk.vtkEnSightGoldReader()
eg.SetCaseFileName(VTK_DATA_ROOT + "/Data/EnSight/elements.case")
eg.Update()
pl = vtk.vtkPlane()
pl.SetOrigin(3.5, 3.5, 0.5)
pl.SetNormal(0, 0, 1)
c.SetInputConnection(eg.GetOutputPort())
c.SetClipFunction(pl)
c.SetInsideOut(1)
c.Update()
data = c.GetOutputDataObject(0).GetBlock(0)
self.assertEqual(data.GetNumberOfCells(), 75)
rw = vtk.vtkRenderWindow()
ren = vtk.vtkRenderer()
rw.AddRenderer(ren)
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(data)
actor = vtk.vtkActor()
actor.SetMapper(mapper)
ren.AddActor(actor)
ac = ren.GetActiveCamera()
ac.SetPosition(-7.9, 9.7, 14.6)
ac.SetFocalPoint(3.5, 3.5, 0.5)
ac.SetViewUp(0.08, 0.93, -0.34)
rw.Render()
ren.ResetCameraClippingRange()
rtTester = vtk.vtkTesting()
for arg in sys.argv[1:]:
rtTester.AddArgument(arg)
rtTester.AddArgument("-V")
rtTester.AddArgument("tableBasedClip.png")
rtTester.SetRenderWindow(rw)
rw.Render()
rtResult = rtTester.RegressionTest(10)
if __name__ == "__main__":
Testing.main([(TestClip, 'test')])
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