[vtkusers] Missing texture file in vtkTexturedSphere example?

[Bill Lorensen]

Here is the texture for the example:
https://github.com/lorensen/VTKWikiExamples/blob/master/Testing/Data/earth.ppm


On Fri, Oct 28, 2016 at 6:26 PM, BBerco <bebe0705 at colorado.edu> wrote:
> Hi all,
>
> I have been trying to map a 2D texture onto a spherical surface following
> the tutorial on vtkTexturedSphere
>
> http://www.paraview.org/Wiki/VTK/Examples/Cxx/Texture/TexturedSphere
>
> Unfortunately, no information on the image used in this example (dimensions,
> image pre-processing , not to mention the actual file) is provided to the
> user. Applying the example code to an arbitrary rectangular image results in
> an incorrect results, as if the texture image was wrapped multiple times
> around the sphere.
>
> I'm thinking that the input file used in the example was probably applied
> some sort of transform before being fed to vtk. I tried to use the SetScale
> method in vtkTexturedSphere, to no avail (I honestly don't know which way to
> look here).
>
> Any advice as to how I could get rid of the wrapping discrepancies using a
> rectangular image such as  this one
> <http://naturalearth.springercarto.com/ne3_data/8192/textures/2_no_clouds_8k.jpg>
> ?
>
> Thanks!
>
> Ben
>
>
>
>
>
>
>
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