Hello list, I've created a wms service using mapnik with 2 layers.
One is being used as the base layer (using openlayers) and the 2nd one is a switchable layer on top of that (it displays a UTM grid). The problem appears to be that the backgound of the 2nd layer (a grid) is color white instead of transparent, so it renders on top of the base layer... I know I can set the opacity of the polygon to 0, but how can I set the background of the map to transparent? Kind Regards, G
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