On Fri, Mar 22, 2013 at 2:07 PM, Ralf Werner <[email protected]> wrote:
> I reviewed youre changes in the repository. You dont use the flag in the > code. ouch! you're right -- I had it testing with and without the flag, but then carelessly refactored a bit -- and had changed the GUImodes to use the new way, so didn't notice. Thanks for the patch! I just commited the change -- it should be right now. >> I do notice that the image still drifts a bit as you zoom in and out >> -- maybe some error introduced by converting back and forth between >> world and pixel coordinates? > > Im saw this error to. But im not searched for it further. Later i will > search for it. I suspect it may be roudning - from floating point world to integer pixel and back again, could introduce a 1 pixel change each zoom step. Maybe we could re-factor to compute the new world coordinate center point, and set that, rather than setting the scale and then using MoveImage() to do the move. -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception [email protected] _______________________________________________ FloatCanvas mailing list [email protected] http://paulmcnett.com/cgi-bin/mailman/listinfo/floatcanvas
