[vtkusers] Filling contour with edge visibility on

Sat Jun 5 14:28:13 EDT 2010

But I should see it as a filled contour.

On Sat, Jun 5, 2010 at 6:48 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> 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
> >>> >>> >> >> >
> >>> >>> >> >> > _______________________________________________
> >>> >>> >> >> > 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
> >>> >>> >> >> >
> >>> >>> >> >> >
> >>> >>> >> >
> >>> >>> >> >
> >>> >>> >
> >>> >>> >
> >>> >>
> >>> >>
> >>> >
> >>
> >
> >
>
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