i'm currently using BitBlt. it seems quite fast to me.. iirc my preview mode is still in the order of 6 million 2nd order interpolations and i'm getting ~2-4 frames per second on my lappy.. the app is in this thread - http://www.cartographersguild.com/sh...pping-software

thanks for the reminder... i admit to being a ~BASIC linear, inline coder.. very little use for structs and classes in 1 dimension so i haven't had much practical experience with many OO procedures

procedural terrain, climate, rivers et c. are next (so still playing catch up) then national regions, cities and roads.. (do not anticipate quality) which should stretch my legs some.