Slow images

[DisAid]

I have been able to finally load some map images (JPG files), I was able to use the calibrate to make it match the other data pretty good, but it seems to be a bit slow when zooming in to areas covered by the image. Is there a way to speed that up?

[RWinlow]

I have been able to finally load some map images (JPG files), I was able to use the calibrate to make it match the other data pretty good, but it seems to be a bit slow when zooming in to areas covered by the image. Is there a way to speed that up?

I believe that JPG files are much slower to load, if they are covering a large area. I'm pretty sure I've read that if you want to use a graphic map covering a large area, the BMP is the best format because it doesn't load the whole file (well, I am not sure if those were the exact words I saw, or if I explained it correctly, but something like that).

[CorineR]

Very helpful, I just saw this and it explains why some of my images load very slow.