Fix precision loss when passing coordinates to the clipper library (!3) · Merge requests · Education / Marble

Volker Krause requested to merge vkrause/marble:fix-precision-loss-in-clipping into master Jul 01, 2020

This intends to convert coordinates to 100 nanodegree integer values (the OSM base resolution), however it misses the fact that the input is provided in radians, not degrees. This means that we are effectively reducing the resolution by about 60x. This is enough to introduce visual glitches up to completely destroying sub-meter structures.

Before:

After:

Fix precision loss when passing coordinates to the clipper library

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