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changing resolution of finished mapping product

Is it possible to change the resolution of a mapping product AFTER it has been finished? Do I need to use a different piece of software like AcrGIS? Or is it possible to do on your end? Or, do I need to refly the area and generate a new map at a higher altitude?

Chris Odom

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Look at the GDAL tools. You can do it with QGIS which is just a nice front end to GDAL. You want to "translate" the GeoTiff created by Maps Made Easy to the desired GSD.

Example of how to half your GSD:
gdal_translate -outsize 50% 50% full_gsd.tif half_gsd.tif

If you want bigger GSD, you need to fly higher, if you want smaller GSD you need to fly lower.

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