Comment 7 for bug 1753224

Hey,

I guess it was related to the change by Jeff (rewrite of ZONE_FILLER to use std::thread instead of OpenMP) where parallelization was list.

@Eldar: now that John brought back parallel threading, could you test the latest nightly and see if the speed is back?

@Jeff: Sure. Have a look at SHAPE_ARC::ConvertToPolyline(). It calculates the number of necessary segments based on the required accuracy (default = 1% = 0.01).

Tom