Artifacts at tile Boundaries / Debug Tiles

[MoKob]

For edges located directly at tile boundaries, there seem to be some clipping issues. These should be addressed for the official release of transit.

An example of the issue can be seen here:

The same location zoomed out to the next level:

This shows that the data is there, but it does not show correctly.

Link for local debug frontend: link

The bug itself could be located at any part that is related to clipping:

• clip box using boost geometry (see here and here)
• bounding box (see here and here which is the most likely culprit

In an extended effort, the sizes of these bounding boxes could be tuned to not over-sample what we look at.