[vtkusers] Filling contour with edge visibility on

[Jothy]

Sorry,

I meant , I don't understand the featureEdges behaviour.

On Sat, Jun 5, 2010 at 6:39 PM, Jothy <jothybasu at gmail.com> wrote:

> No Bill, this shows only the edge (outline) in surface and wireframe mode
>
> I really understand the behaviour of fretureEdges.
>
> see the attached screenshot.
>
> Thanks,
>
> Jothy
>
>
>
>
> On Sat, Jun 5, 2010 at 6:25 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:
>
>> 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
>> >>> >> >> >
>> >>> >> >> > _______________________________________________
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>> >>> >> >> >
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>> >>> >> >> >
>> >>> >> >> > Please keep messages on-topic and check the VTK FAQ at:
>> >>> >> >> > http://www.vtk.org/Wiki/VTK_FAQ
>> >>> >> >> >
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>> >>> >> >> >
>> >>> >> >> >
>> >>> >> >
>> >>> >> >
>> >>> >
>> >>> >
>> >>
>> >>
>> >
>>
>
>
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