Good day to all.
I have noted in my projects repeated issues relating to the use of SVG
symbols as part of specific line-based styles. Currently some of my
line-based styles have an SVG symbol overlaid on top of a particular line.
When these styles are stored into the style manager and exported from
there to a styles file there seems to be little difficulty for the
software in being able to reload the SVG symbols from the file when
software is installed for the first time.
However the use of rule based styles where the styles are stored in some
different system that invokes them according to whatever is specified
for a particular layer seems to be a different and more complicated
process. In the majority of cases when the rules were set up for each
layer, the styles for them were selected directly from the ones already
defined in the styles manager, and seemed to work satisfactorily in that
the SVG symbols appeared as expected.
However it seems that every time the software is installed for the first
time on a newly installed computer, the rule based styling is unable to
locate the SVG symbols that are needed for these styles even although
the style manager for the software has no difficulty in finding and
displaying them.
There is a GUI option in the System tab for setting paths for searching
for SVG symbols. So far I have not experienced that specifying paths in
this area causes the missing SVG symbols to reappear when a project is
opened.
I think it would be of considerable assistance at this point to have an
understanding of how the SVG symbols are looked up and stored in
rule-based styles. Although there is a lack of clarity about where the
styles information in the Styles Manager is read in from when the
software starts up, this part of the software appears to have little
difficulty in looking up SVG symbols and displaying them, compared to
what is happening with per-layer rule-based styling.
_______________________________________________
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
