How do I project lon,lat (geographic) vector coverages real-time in ArcView 3.x?
The easiest way to accomplish this is to use the Projection Spheroid Extension. I have also a small ArcView scripts that show example of how to do this in Avenue (below). Both these methods, will allow you to bring over a decimal degree geographic graticule, geologic, etc. to overlay a georeferenced image or to just temporarily reproject the data. If the vector coverage is pre-projected (ex. already in Sinusoidal) this will not work. The coverage must be in decimal degrees not meters or feet. Sample Avenue code for setting projections.
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