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I have a layer (PostGIS table) that I load into JMapFrame. When I zoom to the layers extent I use this:

featureLayer.getBounds();

If I add an object in this layer outside the current exten, it will show when I use "Zoom to layer".

But if I delete the objects on the edge of the layer, I would expect that "Zoom to layer" would zoom in more, but it does not. Not even if I restart my computer and then open the layer in JMapFrame again.

If I make a copy of the geometry and remove the original geometry column in the layer:

query = "ALTER TABLE \"" + layerName + 
"\" ADD COLUMN tmp_geom geometry(\"" + geoType + "\", " + crs +");\r\n" + 
        "UPDATE \"" + layerName + "\" SET tmp_geom = \"" + geocol + "\";\r\n" + 
        "ALTER TABLE \"" + layerName + "\" DROP COLUMN \"" + geocol + "\";\r\n" +
        "ALTER TABLE \"" + layerName + "\" RENAME COLUMN \"tmp_geom\" TO 
        \"" + geocol + "\";";

and try to open it in JMapFrame it will zoom to the "new" and correct extent. But if I close JMapFrame once more and open it again with the layer we are back with the same "old" and wrong extent!

Is it in the cashe somehow and survives a reboot of the computer? How do I update the extent of the layer?

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  • Geotools is asking PostGiS for the bounds of the layer. PostGIS probably doesn't bother recalculating the bounds very often. Try running vacuum analyse to try to recreate them. Commented Dec 6 at 17:29

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