Good evening! We have a number of scanned paper geologic maps that were published prior to GIS. We need to have these registered in NC State Plane Coordinates 3200, 1983. Our ultimate goal to to register these scanned raster geologic maps in state plane 1983 meters in Arcview so that we can serve the maps using ArcIms.
The crux of the problem appears to be with the world file. The maps were registered using MI6.0. We used map latitude and longitude points that were inside the scan boundaries. We do not have registration points on the exact corners of the map margins since there are no data points to do so. Using the tab => tfw mbx utility we created world files. However, we found that there were significant positional errors when we were able to overplot a well known layer (e. g. county boundaries) when we opened the image files in Arcview 3.x. Further experimentation with some of the ESRI scripts were not successful. At this point we are considering reregistering the maps using ArcInfo. We would appreciate any suggestions that can be offered. Thank you! Jeff Reid N. C. Geological Survey 1612 Mail Service Center Raleigh, N. C. USA 27699-1612 919.733.2423 x403 http://www.geology.enr.state.nc.us --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 3520
