Hi, I'm batch processing vtk files containing a model of ours, adding sources/objects based on x,y,z coords, and then rendering/saving the field of view (fov) as pngs. I want some 2-d text labels (i.e. sm.sources.text() ) to "follow" the added objects as they move through my fov. (A good analogy would be labeling planets in a solar system simulation as they orbit the sun.) I was hoping to avoid having to do the whole set of geometry calculations to translate camera(x,y,z) and object(x,y,z) into an fov(x,y) for text positioning. If I use 3D text then I can use the object(x,y,z) but then I'll need to get the text orientation correct so that it's in the plane of the fov again...
Is there an easier way to add labels like this? Am I overlooking something obvious? Many thanks! Karl
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