Bruno a écrit :
> "Luc Le Blanc" <[EMAIL PROTECTED]> ??? news:[EMAIL PROTECTED] ???...
> > I have the same problem and I already considered this offscreen window
> > trick.
> > But panning once would require to redraw the vectors in the offscreen
> window
> > in
> > order to be ready for the next
"Luc Le Blanc" <[EMAIL PROTECTED]> ??? news:[EMAIL PROTECTED] ???...
> I have the same problem and I already considered this offscreen window
> trick.
> But panning once would require to redraw the vectors in the offscreen
window
> in
> order to be ready for the next pan (unless you're able to dra
I have the same problem and I already considered this offscreen window trick.
But panning once would require to redraw the vectors in the offscreen window in
order to be ready for the next pan (unless you're able to draw the whole map of
vectors into an big offscreen window - but even then, a mere
"Elvin Ng" <[EMAIL PROTECTED]> ¦b¶l¥ó news:[EMAIL PROTECTED] ¤¤¼¶¼g
...
> Are you redrawing the whole map while panning?
> IMO, you should draw the map on an offscreen windows, and this map is
bigger
> than your display window (like one more window on each sides plus
> diagonals). When you pan, yo
Are you redrawing the whole map while panning?
IMO, you should draw the map on an offscreen windows, and this map is bigger
than your display window (like one more window on each sides plus
diagonals). When you pan, you just copy the correct region from the
offscreen to display window without requi
hi all,
I am working on a program that display vector map,
however I found that when I draw (or redraw the map when panning and
zooming) the map,
it is very very slow (the size of one record in a file is about 10 ~ 20KB)
any suggestion to fasten the speed?
thx!
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