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For example: let's say you have a 10 megabyte raster/vector file that covers a large area. If you include the file directly into OpenLayers, it will download the entire file to the browser and render whatever part of it the map needs even if it's a small area. What mapserver will do for you is always deliver to the browser a small image of exactly what ...


I found the solution, it basically was to change this: -DCMAKE_LEGACY_CYGWIN_WIN32=1 to -DCMAKE_LEGACY_CYGWIN_WIN32=0 so, I used: cmake .. -DWITH_OGR=0 -DWITH_GDAL=0 -DWITH_WCS=0 -DWITH_WFS=0 -DCMAKE_LEGACY_CYGWIN_WIN32=0 and Mapserver compiled flawlessly.


If security is not an issue but you only want to load data within the current viewport. You can also look at OpenLayers BBOX strategy.

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