CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

 wrote:
> Hi,
> I have a vtk file for a scalar variable in 3D (vtk DataFile Version 2.0,
> DATASET UNSTRUCTURED_GRID,  Points (coordinates), Cells (vertex indexes),
> cell type, point or cell scalar data) and I'm wondering how I can use
> these information to create a labeled 3D image to mesh with the 3D
> mesh-generation package.
> I started resampling my data by means of Visit in order to obtain a
> uniform grid, then I tried to use the function:
>  bool
> Image_3::read_vtk_image_data(vtkImageData* vtk_image (in Image_3.cpp in
> CGAL).
> I enabled it with cmake -DWITH_VTK:BOOL=TRUE in Cmake Cache, but it
> doesn't work and the function is not considered member of the class Image,
> where I'm wrong?
> Could anyone help me?
> Thanks en advance!

You need to enable it while configuring CGAL (not only your example 
program) otherwise you will have a link error.
Also your example need to be linked with the lib CGAL_ImageIO
(add this line in your CMakeLists.txt:
 find_package(CGAL COMPONENTS ImageIO) ).


S.