I want to use data in GPS WGS84 latitudes and longitudes for my registration. How do I use this data to create an orthoimage that will overlay a USGS 7½ quad?
In MapInfo, register the image with a “projection” of WGS84 latitude/longitude. Define a special Lambert projection with its central meridian at the center of the 7½′ quad and standard parallels located a third of the way up from the bottom and a third of the way down from the top. Use the command sequence Raster > Table > Maintenance to change from the WGS84 to this new projection. Now run RasTools to produce the orthoimage. The result will be an image that you can use with your 7½′ quad.
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