[vtkusers] Hi

[Mathieu Malaterre]

LinX,

You need to add:

#include "vtkPolyData.h"

VTK uses forward declaration, thus you explicitely need to include each 
class you use

HTH
Mathieu

LinX wrote:
> Hi everybody.
> 
> I'm starting with VTK in C++. The book is written primarily for Tcl Users so 
> I have been translating examples to Cxx 'cause as you know it isn't pretty 
> hard.
> 
> I had a problem translating the ClipCow.tcl code with the implementation of 
> the vtkCutter class.
> 
> The code I used is
> 
> 
> 
> 
> 
> #include"vtkPolyDataMapper.h"
> #include"vtkActor.h"
> #include"vtkRenderer.h"
> #include"vtkRenderWindow.h"
> #include"vtkRenderWindowInteractor.h"
> #include"vtkPlane.h"
> #include"vtkClipPolyData.h"
> #include"vtkPolyDataReader.h"
> #include"vtkPolyDataNormals.h"
> #include"vtkCutter.h"
> 
> int main(void){
>   vtkPolyDataReader *Reader=vtkPolyDataReader::New();
>   Reader->SetFileName("a.vtk");
> 
>   vtkPolyDataNormals *Normals=vtkPolyDataNormals::New();
>   Normals->SetInput(Reader->GetOutput());
>   
>   vtkPlane *Plane=vtkPlane::New();
>   //Plane->SetOrigin(106,156,90); 
>   //Plane->SetNormal(1,0,0);
>   Plane->SetOrigin(168,107,126); 
>   Plane->SetNormal(0,0,1);
>   
>   vtkClipPolyData *Clipper=vtkClipPolyData::New();
>   Clipper->SetInput(Normals->GetOutput());
>   Clipper->SetClipFunction(Plane);
>   Clipper->GenerateClippedOutputOn();
>   
>   vtkPolyDataMapper *CylinderMapper=vtkPolyDataMapper::New();
>   CylinderMapper->SetInput(Clipper->GetOutput());
> 
>   vtkActor *CylinderActor=vtkActor::New();
>   CylinderActor->SetMapper(CylinderMapper);
> 
>   vtkPolyDataMapper *RestMapper=vtkPolyDataMapper::New();
>   RestMapper->SetInput(Clipper->GetClippedOutput());
>   
>   vtkActor *RestActor=vtkActor::New();
>   RestActor->SetMapper(RestMapper);
>   
>   vtkRenderer *Renderer=vtkRenderer::New();
>   Renderer->AddActor(CylinderActor);
>   Renderer->AddActor(RestActor);
>   Renderer->SetBackground(.2,.2,.5);
> 
>   vtkRenderWindow *RenderWindow=vtkRenderWindow::New();
>   RenderWindow->AddRenderer(Renderer);
>  
>   vtkRenderWindowInteractor *Interactor=vtkRenderWindowInteractor::New();
>   Interactor->SetRenderWindow(RenderWindow);
>   Interactor->Initialize();
>   Interactor->Start();
> 
>   return 0;
> }
> 
> 
> 
> 
> 
> This code works fine, but when I use 
> 
> 
> 
> 
> vtkCutter *cutEdges=vtkCutter::New(); 
> cutEdges->SetInput(Normals->GetOutput());
> 
> 
> 
> 
> the pipeline breaks and this message is printed when making
> 
> 
> 
> 
> 
> [19:59:50] XowL> make 
> Building dependencies cmake.check_depends...
> -- Loading VTK CMake commands
> -- Loading VTK CMake commands - done
> Building object file Cylinder.o...
> /home/xowl/Examples/Examples/VTK/Clip/Cylinder.cxx: In function `int main()':
> /home/xowl/Examples/Examples/VTK/Clip/Cylinder.cxx:43: error: no matching 
>    function for call to `vtkCutter::SetInput(vtkPolyData*)'
> /home/xowl/local/include/vtk/vtkDataSetToPolyDataFilter.h:44: error: 
> candidates 
>    are: virtual void vtkDataSetToPolyDataFilter::SetInput(vtkDataSet*)
> make[1]: *** [Cylinder.o] Error 1
> make: *** [default_target] Error 2
> [19:59:56] XowL>
> 
> 
> 
> 
> 
> And I don't  know the reason. 
> 
> If somebody knows why this happen or what am I doing bad I would appreciate 
> information.
> 
> Thanks
> 
> LinX
> 
> P.D. I apologize for my terrible English.
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