Polyline offset bug

[duccoder]

Hi, I have a problem with offset polyline (I use QCAD Pro 3.15.5 on linux)

First, I create polyline (white), then I offset (Modify/Offset) with distance = 0.5 & I receive problem as image

Screenshot from 2016-09-27 09-21-52.png (2.41 KiB) Viewed 3648 times

offset_highlight.png (3.16 KiB) Viewed 3648 times

offset_problem.png (3.55 KiB) Viewed 3648 times

I have been attach dxf file, can you check the problem

[andrew]

Thanks for your report. Unfortunately, there is no definitive solution to the offset problem (due to the numerical instability of the algorithms involved). The situation can likely be improved by making the algorithm tolerances configurable for a future release.

[duccoder]

I see, hope it solved on future