IDS <[EMAIL PROTECTED]>
> We have registered 10 adjoining raster images in non earth feet.
> These have been susequently digitized. When all the raster
> together with the vector are opened and zoomed into the edge of
> the raster images, the vector of the adjoining raster image does
> not appear to fall on the raster image (appears shifting).
>
> Any printout of the 10 raster vector together leads to the same
> shifting problem.
MapInfo displays raster images without any intermediate processing.
If a raster image is displayed in a map window, and its registration
information shows that the image rotated from the map's coordinate
system, it rotates the map's coordinate system (and any vectors) to
match. Furthermore, if you display other images that are rotated
with respect to the first image, it will display the other images
incorrectly.
The only way you can guarantee that several images aren't rotated with
respect to each other is if all of them came from a larger image that
you subsequently "chopped up". Otherwise, you're pretty much
guaranteed to have the problem you described.
Hope this helps
==================================================
Spencer M. Simpson, Jr., GIS Developer
Baltimore Metropolitan Council -- MetroMapping
http://www.baltometro.org/metromapping.htm
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