Crop with shapefile

[egandp]

is it possilbe to crop a sid to a polygon shapefile. like quad index?

[rparker]

There is a way to crop using a polygon in GeoExpress 7 and GeoExpress Tools 7. This crops the boundary of the polygon.

Net yet available is something that will tile out an image based on a polygon. It is a feature we are interested in adding to the next version.

[Chris]

Is it possible to crop with a polygon shapefile during the Optimize option? Or is that feature only available during initial compression?

[rparker]

A multiple polygon shapefile will not crop out to multiple images. It will however make continuous color pixels of the outside of a polygons. For example, say you have two islands and a polygon around each. If you crop, the two islands will remain in a sea of black (by default: 0,0,0), which has been cropped to the extent of the polygons.