Hi maybe you should check flexible map by Christian Singer http://www.icsinger.de/index_e.htm
It's a rubber sheeting software.. works very well.
At 02:13 29/10/2003, Jaromir Svasta wrote:
MapInfo only adjusts the coordinate system of vector layers to fit the raster. It applies one transformation formula (I think bilinear) all over the area, so if the raster is distorted it cannot guarantee that control points will match the raster, doesn't matter how many of them there are. You need to rubber-sheet the raster. MapInfo won't help you :-( Arc Info, Grass and some other "heavy" GIS can make it.
Jaromir
On Tue, 28 Oct 2003 23:50:35 +0100, Joep Orbons <[EMAIL PROTECTED]> wrote:
Dear readers,
I process historical maps and fit them to todays topography. The problem with these historical maps is the distortion of the maps. This distortion is not regular in X and/or Y direction, it can be very much rotated and scaled different in seperate parts of the maps.
These maps always have some points I recognize and that I can mark on todays topography. Sometimes many points, sometimes only a few.
How can I un-distort these maps, scanned or digitised, to fit the known points? I don't think it is possible in MapInfo. Maybe I need a seperate program with two layers: One layer with todays topography and known points and a second layer with the scan. Then drag points of the scan to the modern topography where the rest of the map follows. The more points, the more accurate.
Any suggestions?
Thanks,
Joep Orbons Souterrains: [EMAIL PROTECTED]
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