Modify the projection formula, add tolerance, and add tests. #8870
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joa-quim
approved these changes
Jan 22, 2026
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When dip=90° and rank=180°, tan(90°)×sin(180°)=Inf×0, causing an error.
Change the formula in the utilmeca_proj_radius function from atan(tand×sind) to atan2(sin×sin, cos) and add an epsilon tolerance.
Fixes #8053
Test results:
