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How can I render a polygon the contains the north pole?

Question asked by dhope@ara.com on Feb 2, 2017
Latest reply on Feb 12, 2018 by MBranscomb-esristaff

The app I'm working on requires that we show the "horizon" associated with what an object (say a satellite) in space can see, based on its altitude and FOV. I typically can render this with no problem, except when the horizon circle contains the north pole, then all sorts of weirdness can happen. Here is an example:

 

On both the sceneview, the black outline correctly denotes what I expect to see, but the polygon doesn't fill  correctly.

 

On the mapview, I expect to see something that looks like a sine wave filled in from the top.

 

In neither case did I get what I expected.

 

I've attached the code that generates this image. Run it and click the "Large Circle Issue" button.

 

Thanks,

David

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