Hello to everyone,
I need to draw a sphere with a HEALPix pixelisation.
The function pix2vec_nest in the IDL library optionally renders cartesian vector coordinates of the pixel four vertices.
Unfortunately the same function in the C library doesn't do the same.
So I have just the center of the pixel. I've tried to understand the IDL code and add to the C library this option but it is hard, at least, for me.
thank you in advance.
Pixel corners in HEALPix
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