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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from vtkmodules.vtkCommonCore import vtkPoints
from vtkmodules.vtkFiltersCore import (
vtkContourFilter,
vtkReverseSense,
)
from vtkmodules.vtkFiltersSources import vtkProgrammableSource
from vtkmodules.vtkImagingHybrid import vtkSurfaceReconstructionFilter
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 reconstructSurface(vtkmodules.test.Testing.vtkTest):
def testReconstructSurface(self):
# Read some points. Use a programmable filter to read them.
#
pointSource = vtkProgrammableSource()
def readPoints():
fp = open(VTK_DATA_ROOT + "/Data/cactus.3337.pts", "r")
points = vtkPoints()
while True:
line = fp.readline().split()
if len(line) == 0:
break
if line[0] == "p":
points.InsertNextPoint(float(line[1]), float(line[2]), float(line[3]))
pointSource.GetPolyDataOutput().SetPoints(points)
pointSource.SetExecuteMethod(readPoints)
# Construct the surface and create isosurface
#
surf = vtkSurfaceReconstructionFilter()
surf.SetInputConnection(pointSource.GetOutputPort())
cf = vtkContourFilter()
cf.SetInputConnection(surf.GetOutputPort())
cf.SetValue(0, 0.0)
reverse = vtkReverseSense()
reverse.SetInputConnection(cf.GetOutputPort())
reverse.ReverseCellsOn()
reverse.ReverseNormalsOn()
map = vtkPolyDataMapper()
map.SetInputConnection(reverse.GetOutputPort())
map.ScalarVisibilityOff()
surfaceActor = vtkActor()
surfaceActor.SetMapper(map)
surfaceActor.GetProperty().SetDiffuseColor(1.0000, 0.3882, 0.2784)
surfaceActor.GetProperty().SetSpecularColor(1, 1, 1)
surfaceActor.GetProperty().SetSpecular(.4)
surfaceActor.GetProperty().SetSpecularPower(50)
# Create the RenderWindow, Renderer and both Actors
#
ren = vtkRenderer()
renWin = vtkRenderWindow()
renWin.AddRenderer(ren)
# Add the actors to the renderer, set the background and size
#
ren.AddActor(surfaceActor)
ren.SetBackground(1, 1, 1)
renWin.SetSize(300, 300)
ren.GetActiveCamera().SetFocalPoint(0, 0, 0)
ren.GetActiveCamera().SetPosition(1, 0, 0)
ren.GetActiveCamera().SetViewUp(0, 0, 1)
ren.ResetCamera()
ren.GetActiveCamera().Azimuth(20)
ren.GetActiveCamera().Elevation(30)
ren.GetActiveCamera().Dolly(1.2)
ren.ResetCameraClippingRange()
# render and interact with data
iRen = vtkRenderWindowInteractor()
iRen.SetRenderWindow(renWin);
renWin.Render()
img_file = "reconstructSurface.png"
vtkmodules.test.Testing.compareImage(iRen.GetRenderWindow(), vtkmodules.test.Testing.getAbsImagePath(img_file))
vtkmodules.test.Testing.interact()
if __name__ == "__main__":
vtkmodules.test.Testing.main([(reconstructSurface, 'test')])
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