Hot answers tagged symbology
"probably because I'm trying to export something that represent a polygon to a point" Bingo! Polygon shapefiles tend to use Fills by default with a set of styles (size, colour, etc). Point shapefiles tend to use Markers by default with a set of styles (size, colour, etc). So both shapefiles use a different type of symbology. Hope this helps!
First, feature classes don't have symbology attributes. Symbology is attributed to layers in ArcGIS. When you add a feature class to a table of contents in ArcMap, a layer is created, though not saved anywhere as a .lyr file. If you are having your users add a feature class to ArcMap that they then symbolize as desired, below is the way of saving that ...
another way is to point your SVG adding their path in: Settings->Options->System->SVG Path In this way you'll find your SVG symbols as group in QGIS styler (Layer Properties->Style....)
Just copy the folder with SVG icons to your QGIS SVG folder. On Windows it C:\OSGeo4W64_2.8.1\apps\qgis\svg depending on your installation path. Restart QGIS if open when copying.
The answer may be dont, it's a special character. You can put an ampersand in your layer name that looks just great in ArcMap: Using a double ampersand &&: But when you create a map of it: The legend gets expanded to the 'true' text.
I would suggest creating a new field and then using 'select by attributes'. Do this for each of your three categories and populate your new field with some common value (ie. 1, 2, or 3). You could then base your symbology on this new field and properly show your three different symbols. Bit of a work around but that is how I would approach this problem.
As suggested by @Martin in a comment, the way to do this is by using Group Values. Here I have selected three values (using Ctrl key to multiple select) and am choosing to have them appear using a single symbol. I can now type whatever Label I want for that grouped value.
Try setting "gruppo" = 'campione' in General | Query. Then do the classification. Then remove the query again. Hacky, but might work.
The options for saving styles are text based files, qml looks like xml format and sld looks like html. Using a text editor would allow you build a new style for your point file from the values saved from the polygon file by cut and paste.
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