#3033: Cairo and PS drivers display only one raster or vector for SVG and PS -------------------------+------------------------------------------------- Reporter: wenzeslaus | Owner: grass-dev@… Type: defect | Status: new Priority: major | Milestone: 7.2.0 Component: Display | Version: svn-trunk Resolution: | Keywords: d.mon, cairo, ps, SVG, vector CPU: | graphics Unspecified | Platform: Unspecified -------------------------+-------------------------------------------------
Comment (by glynn): Replying to [comment:2 wenzeslaus]: > This is serious limitation. Is there a way to change the rendering to not have this problem. Write SVG to a temporary file, read and parse the original file and temporary file, merge SVG documents, write XML. Merging the documents isn't exactly trivial, e.g. you need to rename elements in <defs> sections (and any references to them) to avoid name collisions. This might be feasible if we can figure out some bounds on what we can expect cairo to generate, but it's still a fair amount of work and seems fragile (e.g. future versions of cairo may change the document structure). > Combining manually in Inkscape was not possible; I was not able to align the layers. Inkscape is garbage for anything with technical constraints. I usually end up writing Python scripts to manipulate the XML. > But it seems that PS driver is not as powerful as Cairo and same things are lost during the subsequent conversions, page size was wrong as well. Converting !PostScript invariably loses information. Being a programming language rather than a data format means that you can't extract high- levels structure, you just have to execute it and capture the rendering primitives. -- Ticket URL: <https://trac.osgeo.org/grass/ticket/3033#comment:3> GRASS GIS <https://grass.osgeo.org> _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev