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GIS applications for mural painting documentation Gaetano Palumbo
Display of cracks above voids (after filtering and comparing crack and void data by means of a GIS function).
In this case 2 coverages (layers) have been compared: cracks and voids, and the software has selected the cracks that are located on top of voids, also creating a new coverage (layer). This allows the conservator to have a clear display of a potential problem area. The opposite display can also be done, that of voids that have cracks on the surface. It is up to the operator to decide which display can be most useful.