[vtkusers] problem with texture mapping

[Dominik Szczerba]

dont you have to typecast onto vtkDataSet?
--dsz

Ankur Deshmukh wrote:
> Hey ,
> 
> I have a jpg texture and a medical dataset provided by the vtk examples.
> I want to map this texture on to the dataset. Can anyone please help me.
> 
> Here is a piece of code I am working with and below it are the erros I
> am getting:
> 
> vtkContourFilter *skinExtractor = vtkContourFilter::New();
>    skinExtractor->SetInput(imageData);
>    skinExtractor->SetValue(0, 500);
>  vtkPolyDataNormals *skinNormals = vtkPolyDataNormals::New();
>    skinNormals->SetInput(skinExtractor->GetOutput());
>    skinNormals->SetFeatureAngle(60.0);
>  vtkStripper *skinStripper = vtkStripper::New();
>    skinStripper->SetInput(skinNormals->GetOutput());
>  vtkPolyDataMapper *skinMapper = vtkPolyDataMapper::New();
>    skinMapper->SetInput(skinStripper->GetOutput());
>    skinMapper->ScalarVisibilityOff();
>  vtkActor *skin = vtkActor::New();
>    skin->SetMapper(skinMapper);
>    skin->GetProperty()->SetDiffuseColor(1, .49, .25);
>    skin->GetProperty()->SetSpecular(.3);
>    skin->GetProperty()->SetSpecularPower(20);
>    skin->GetProperty()->SetOpacity(1.0);
> 
>  /// An isosurface, or contour value of 1150 is known to correspond to the/
>  /// skin of the patient. Once generated, a vtkPolyDataNormals filter is/
>  /// is used to create normals for smooth surface shading during /
>  /// rendering./
>  /// The triangle stripper is used to create triangle strips from the/
>  /// isosurface; these render much faster on may systems./
>  vtkContourFilter *boneExtractor = vtkContourFilter::New();
>    boneExtractor->SetInput(imageData);
>    boneExtractor->SetValue(0, 1150);
>  vtkPolyDataNormals *boneNormals = vtkPolyDataNormals::New();
>    boneNormals->SetInput(boneExtractor->GetOutput());
>    boneNormals->SetFeatureAngle(60.0);
>  vtkStripper *boneStripper = vtkStripper::New();
>    boneStripper->SetInput(boneNormals->GetOutput());
>  vtkPolyDataMapper *boneMapper = vtkPolyDataMapper::New();
>    boneMapper->SetInput(boneStripper->GetOutput());
>    boneMapper->ScalarVisibilityOff();
>  vtkActor *bone = vtkActor::New();
>    bone->SetMapper(boneMapper);
>    bone->GetProperty()->SetDiffuseColor(1, 1, .9412);
> 
>  /// An outline provides context around the data./
>  ////
>  vtkOutlineFilter *outlineData = vtkOutlineFilter::New();
>    outlineData->SetInput(imageData);
>  vtkPolyDataMapper *mapOutline = vtkPolyDataMapper::New();
>    mapOutline->SetInput(outlineData->GetOutput());
>  vtkActor *outline = vtkActor::New();
>    outline->SetMapper(mapOutline);
>    outline->GetProperty()->SetColor(0,0,0);
>     
>     vtkTextureMapToPlane *texturePlane = vtkTextureMapToPlane::New();
>         texturePlane->SetInput(skinNormals->GetOutput());
>        
>     vtkTransformTextureCoords *transformTexture =
> vtkTransformTextureCoords::New();
>         transformTexture->SetInput(texturePlane->GetOutput());
>     
>     vtkPolyDataMapper *textureDataMapper = vtkPolyDataMapper::New();
>         textureDataMapper->SetInput(texturePlane->GetOutput());
>     
>     vtkImageReader2Factory *createReader = vtkImageReader2Factory::New();
>     vtkImageReader2 *textureReader = vtkImageReader2::New();
>         textureReader = createReader->CreateImageReader2(argv[4]);
>         textureReader->SetFileName(argv[4]);
>             
>     vtkTexture *texture = vtkTexture::New();
>         texture->SetInput(textureReader->GetOutput());
>         texture->InterpolateOn();
>        
>     vtkActor *textureActor = vtkActor::New();
>         textureActor->SetMapper(textureDataMapper);
>         textureActor->SetTexture(texture);
> 
> ERRORS:
> 
> rawtoxmlformat.cpp: In function ‘int main(int, char**)’:
> rawtoxmlformat.cpp:142: error: no matching function for call to
> ‘vtkTextureMapToPlane::SetInput(vtkPolyData*)’
> /usr/local/include/vtk/vtkDataSetToDataSetFilter.h:59: note: candidates
> are: void vtkDataSetToDataSetFilter::SetInput(vtkDataSet*)
> rawtoxmlformat.cpp:148: error: no matching function for call to
> ‘vtkPolyDataMapper::SetInput(vtkDataSet*)’
> /usr/local/include/vtk/vtkPolyDataMapper.h:51: note: candidates are:
> void vtkPolyDataMapper::SetInput(vtkPolyData*)
> gmake: *** [rawtoxmlformat.o] Error 1
> *** Exited with status: 2 ***
> 
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-- 
Dominik Szczerba, Dr.
ETZ C110 CO-ME/BIWI CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi