Question:
I need to generate a square georeferenced PNG where:
the interior of a geographic region is transparent,
the exterior is filled with a solid color (e.g., gray).
Currently, I have two geometries in EPSG:2056, which I merged using a junction node.
How can I produce a single georeferenced PNG with these properties?
I’ve attached my script and the two input files.
Hi
I suppose that you are attempting to create a raster which draws a polygon read from CANTON onto a transparent rectangle read from Masque.
If I understand your requirement correctly, FeatureColorSetter and ImageRasterizer might help you.
The screenshot below illustrates a workflow example. X/Y Cell Spacing (100) and Background Color (1,1,1) are just examples, modify them preferably.
Alternatively, VectorOnRasterOverlayer coud also be helpful, as in:
Just be aware PNG format doesn't support coordinate system. If you need to create a truly georeferenced raster, consider using other raster format which supports coordinate system - e.g. GeoTIFF.
Oh, I misunderstood your requirement, interior of polygon should be transparent and background should be colored. Workflow would be simpler.
