[vtkusers] Filling contour with edge visibility on

[Bill Lorensen]

If this does not work, I'll convert python to C++ (I am not a python
guy). Maybe in the next day or so.

On Sat, Jun 5, 2010 at 1:24 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> Try
> cutter->Stripper->cutPoly->TriangleFilter->FeatureEdges->Mapper
>
> On Sat, Jun 5, 2010 at 1:13 PM, Jothy <jothybasu at gmail.com> wrote:
>> Here is the code
>>
>> # A simple script to demonstrate the vtkCutter function
>> import vtk
>>
>>
>> #Create a cube
>> cube=vtk.vtkSphereSource()
>> cube.SetRadius(50)
>> cube.SetThetaResolution(100)
>> cube.SetPhiResolution(100)
>> cubeMapper=vtk.vtkPolyDataMapper()
>> cubeMapper.SetInputConnection(cube.GetOutputPort())
>>
>> #create a plane to cut,here it cuts in the XZ direction (xz
>> normal=(1,0,0);XY =(0,0,1),YZ =(0,1,0)
>> plane=vtk.vtkPlane()
>> plane.SetOrigin(20,0,0)
>> plane.SetNormal(1,0,0)
>>
>> #create cutter
>> cutter=vtk.vtkCutter()
>> cutter.SetCutFunction(plane)
>> cutter.SetInput(cubeMapper.GetInput())
>> cutter.Update()
>>
>> FeatureEdges=vtk.vtkFeatureEdges()
>> FeatureEdges.SetInputConnection(cutter.GetOutputPort())
>> FeatureEdges.BoundaryEdgesOn()
>> FeatureEdges.FeatureEdgesOff()
>> FeatureEdges.NonManifoldEdgesOff()
>> FeatureEdges.ManifoldEdgesOff()
>> FeatureEdges.Update()
>>
>> cutStrips=vtk.vtkStripper() ; #Forms loops (closed polylines) from cutter
>> cutStrips.SetInputConnection(cutter.GetOutputPort())
>> cutStrips.Update()
>> cutPoly=vtk.vtkPolyData() ; #This trick defines polygons as polyline loop
>> cutPoly.SetPoints((cutStrips.GetOutput()).GetPoints())
>> cutPoly.SetPolys((cutStrips.GetOutput()).GetLines())
>>
>>
>> cutMapper=vtk.vtkPolyDataMapper()
>> #cutMapper.SetInput(FeatureEdges.GetOutput())
>> cutMapper.SetInput(cutPoly)
>> cutActor=vtk.vtkActor()
>> cutActor.GetProperty().SetColor(1,1,0)
>> cutActor.GetProperty().SetEdgeColor(0,1,0)
>> cutActor.GetProperty().SetLineWidth(2)
>> cutActor.GetProperty().EdgeVisibilityOn()
>> ##cutActor.GetProperty().SetOpacity(0.7)
>> cutActor.SetMapper(cutMapper)
>>
>>
>> #create renderers and add actors of plane and cube
>> ren = vtk.vtkRenderer()
>> ren.AddActor(cutActor)
>>
>>
>> #Add renderer to renderwindow and render
>> renWin = vtk.vtkRenderWindow()
>> renWin.AddRenderer(ren)
>> renWin.SetSize(600, 600)
>> iren = vtk.vtkRenderWindowInteractor()
>> iren.SetRenderWindow(renWin)
>> ren.SetBackground(0,0,0)
>> renWin.Render()
>>
>> What's the problem then?
>>
>> Thank you,
>>
>> Jothy
>>
>> On Sat, Jun 5, 2010 at 6:10 PM, Bill Lorensen <bill.lorensen at gmail.com>
>> wrote:
>>>
>>> No, it should not modify its input.
>>>
>>> On Sat, Jun 5, 2010 at 12:34 PM, Jothy <jothybasu at gmail.com> wrote:
>>> > Got it Bill!
>>> >
>>> > There is a trick
>>> >
>>> > pipeline is as I uesd before from capCow.tcl but introducin
>>> > vtkfeatureEdges
>>> > after vtkCutter and setting the stripper input from cutter not from
>>> > featureEdges.
>>> >
>>> > I am bit confused, does this featureedges modifies the cutter output
>>> >  and makes this modified outpur available to cutter->GetOutput()
>>> >
>>> > Seems to be  special type of operation ( or is it a bug!).
>>> >
>>> > Here is the screenshot
>>> >
>>> > I will add an example to wiki.
>>> >
>>> >
>>> > Thanks,
>>> >
>>> >
>>> > On Sat, Jun 5, 2010 at 5:03 PM, Bill Lorensen <bill.lorensen at gmail.com>
>>> > wrote:
>>> >>
>>> >> Can you post an image of what you get?
>>> >>
>>> >> On Sat, Jun 5, 2010 at 11:34 AM, Jothy <jothybasu at gmail.com> wrote:
>>> >> > Here is it!
>>> >> >
>>> >> > # A simple script to demonstrate the vtkCutter function
>>> >> > import vtk
>>> >> >
>>> >> >
>>> >> > #Create a cube
>>> >> > cube=vtk.vtkSphereSource()
>>> >> > cube.SetRadius(50)
>>> >> > cube.SetThetaResolution(200)
>>> >> > cube.SetPhiResolution(200)
>>> >> > cubeMapper=vtk.vtkPolyDataMapper()
>>> >> > cubeMapper.SetInputConnection(cube.GetOutputPort())
>>> >> >
>>> >> > #create a plane to cut,here it cuts in the XZ direction (xz
>>> >> > normal=(1,0,0);XY =(0,0,1),YZ =(0,1,0)
>>> >> > plane=vtk.vtkPlane()
>>> >> > plane.SetOrigin(10,0,0)
>>> >> > plane.SetNormal(1,0,0)
>>> >> >
>>> >> > #create cutter
>>> >> > cutter=vtk.vtkCutter()
>>> >> > cutter.SetCutFunction(plane)
>>> >> > cutter.SetInput(cubeMapper.GetInput())
>>> >> > cutter.Update()
>>> >> >
>>> >> > FeatureEdges=vtk.vtkFeatureEdges()
>>> >> > FeatureEdges.SetInputConnection(cutter.GetOutputPort())
>>> >> > FeatureEdges.BoundaryEdgesOn()
>>> >> > FeatureEdges.FeatureEdgesOff()
>>> >> > FeatureEdges.NonManifoldEdgesOff()
>>> >> > FeatureEdges.ManifoldEdgesOff()
>>> >> > FeatureEdges.Update()
>>> >> >
>>> >> >
>>> >> >
>>> >> >
>>> >> > cutMapper=vtk.vtkPolyDataMapper()
>>> >> > cutMapper.SetInput(FeatureEdges.GetOutput())
>>> >> > cutActor=vtk.vtkActor()
>>> >> > cutActor.GetProperty().SetColor(1,1,0)
>>> >> > cutActor.GetProperty().SetEdgeColor(1,0.5,0)
>>> >> > cutActor.GetProperty().SetLineWidth(2)
>>> >> > cutActor.GetProperty().EdgeVisibilityOn()
>>> >> > cutActor.GetProperty().SetOpacity(0.7)
>>> >> > cutActor.SetMapper(cutMapper)
>>> >> >
>>> >> >
>>> >> > #create renderers and add actors of plane and cube
>>> >> > ren = vtk.vtkRenderer()
>>> >> > ren.AddActor(cutActor)
>>> >> >
>>> >> >
>>> >> > #Add renderer to renderwindow and render
>>> >> > renWin = vtk.vtkRenderWindow()
>>> >> > renWin.AddRenderer(ren)
>>> >> > renWin.SetSize(600, 600)
>>> >> > iren = vtk.vtkRenderWindowInteractor()
>>> >> > iren.SetRenderWindow(renWin)
>>> >> > ren.SetBackground(0,0,0)
>>> >> > renWin.Render()
>>> >> >
>>> >> > On Fri, Jun 4, 2010 at 10:07 PM, Bill Lorensen
>>> >> > <bill.lorensen at gmail.com>
>>> >> > wrote:
>>> >> >>
>>> >> >> From the output of vtkCutter, insert vtkFeatureEdges with
>>> >> >> BoundaryEdgesOn()
>>> >> >> FeatureEdgesOff()
>>> >> >> NonManifoldEdgesOff()
>>> >> >> ManifoldEdgesOff()
>>> >> >>
>>> >> >>
>>> >> >>
>>> >> >> On Fri, Jun 4, 2010 at 4:16 PM, Jothy <jothybasu at gmail.com> wrote:
>>> >> >> > Hi all,
>>> >> >> >
>>> >> >> > With the help of CapCow.tcl example I am able to fill the contour
>>> >> >> > I
>>> >> >> > got
>>> >> >> > from
>>> >> >> > vtkCutter. But, the problem is I am the edge to be visible, so I
>>> >> >> > set
>>> >> >> > edge
>>> >> >> > visibility on, it makes all the triangle edges on. I want only the
>>> >> >> > outline
>>> >> >> > on.
>>> >> >> >
>>> >> >> > Any suggestions?
>>> >> >> >
>>> >> >> > Thanks,
>>> >> >> >
>>> >> >> > Jothy
>>> >> >> >
>>> >> >> > _______________________________________________
>>> >> >> > Powered by www.kitware.com
>>> >> >> >
>>> >> >> > Visit other Kitware open-source projects at
>>> >> >> > http://www.kitware.com/opensource/opensource.html
>>> >> >> >
>>> >> >> > Please keep messages on-topic and check the VTK FAQ at:
>>> >> >> > http://www.vtk.org/Wiki/VTK_FAQ
>>> >> >> >
>>> >> >> > Follow this link to subscribe/unsubscribe:
>>> >> >> > http://www.vtk.org/mailman/listinfo/vtkusers
>>> >> >> >
>>> >> >> >
>>> >> >
>>> >> >
>>> >
>>> >
>>
>>
>