[vtkusers] Filling contour with edge visibility on

[Bill Lorensen]

That is exactly what it should show. I guess I am misunderstanding your problem

On Sat, Jun 5, 2010 at 1:40 PM, Jothy <jothybasu at gmail.com> wrote:
> 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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