Beyond the strength of a
"windowed" interface in relevant to the easiness of making different
aspects &
zooms (as you can move, resize,
minimize etc. the various parts of your visual environment), in this picture
we can see the accurate overlaying of georeferenced raster background
images (here in colored & opaque texture) with vector elements. In
this way, we set the proper environment, par example, for "on screen
digitising".
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