Hi, I found that if I enabled "Slow position tracking", brush often makes odd 'hooks' at the start of the stroke. (and sometimes 'skips' like ink pens)
First of all, please take a look at this image. http://dl.dropbox.com/u/38106202/mypaint-tracking_bug1.png I simply drew straight lines repeatedly, however there're odd hooks and skips. This is more likely to appear when the parameter is higher. In order to confirmed this decisively, you can gain the limitation of the parameter as beneath. --------------------------- mypaint/brushlib/brushsettings.py 60c60 < ['slow_tracking', _('Slow position tracking'), True, 0.0, 0.0, 10.0, _("Slowdown pointer tracking speed. 0 disables it, higher values remove more jitter in cursor movements. Useful for drawing smooth, comic-like outlines.")], --- > ['slow_tracking', _('Slow position tracking'), True, 0.0, 0.0, 30.0, _("Slowdown pointer tracking speed. 0 disables it, higher values remove more jitter in cursor movements. Useful for drawing smooth, comic-like outlines.")], --------------------------- I'm not sure but I assume this may occur because the interpolating algorithm uses a non-cliked coordinate as the initial point of a stroke. Additionally, if a skip appears, one stroke is devided into two by an undo. http://dl.dropbox.com/u/38106202/mypaint-tracking_bug2a.png Sincerely, Richter
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