I have a jpeg of a mappoint map. The jpeg shows a picture of a polygon.

What I want to know is given that I know the length and width of the jpeg (in pixels) and the coordinates of the polygon (in lat lon). How could I convet the lat lon coordinates to x y pixel coordinates.

What i'm trying to do is show an this image in a vb .net form and then overlay the image using GDI+ with an interactive polygon. The problem I obviously have is knowing where to plot my polygon.

Any ideas would be greatly appreciated.

Thanks