center point of circle path

[denzjos]

I have already experienced that when I rotate and move a circle path in Gimp, the 'selection from path' gives a different result than 'stroke path'. Probably a rounding or interpolation of path values to pixel values that is done in a different way. This story reminds me of a problem that I had when I wrote a program to convert 2D NC programs of contours that only consisted of ISO codes G01, G02 and G03 to DXF files. They were old files of complicated contours that needed to be corrected in a CAD system. After conversion, the various entities on the CAD system were not closed. This was because the CAD-CAM conversion rounded the intersection values to 3 decimal places. After converting to DXF, those values were included. With an NC machine this does not pose a problem because you can enter a parameter in the machine after which it bridges these gaps in the contour. The CAD user then had to close all openings of the contour with the CAD program before he could correct the contour for new use.

Circle path drawing in gimp convert to 'path to selection' and 'stroke path' :