dragknife adding incorrect paths

[stewartoallen]

near straight lines are inducing curves

old_bay.kmz.zip

[stewartoallen]

simpler test case

drag knife error.kmz.zip

[bakedPotatoLord]

The abnormalities seem to be occurring at the vertices of the mesh.

[stewartoallen]

I wonder if this is an angular wrap-around issue. like 0.1 degrees to 359.9 degrees when the actual separation is 0.2 degrees but math says 359.8 ... there is a function that fixes this somewhere in the code. but the algo is also quite simple. angular deviations over some threshold trigger the drag arc injection.

[bakedPotatoLord]

Some of the slopes are being set to 0 or 180 when they shouldn't be. when they are, the tight angle detection is triggered on both sides of that slope. My best guess is that the slope detection code has a bug somewhere. I'm not getting anywhere with this right now, so I'm going to put it on the back burner and come back to it.