[GIS] Square symbol with a number inside

Question

How do I create a symbol on qgis that has a number assigned to it? I am trying to make a square symbol with a number inside. everytime I place the marker I would like it to ask me what the number is everytime so I can place specific number symbols in different areas on my map. Anybody know how to do this?

Answer 1

You can actually do this through symbology rather than a mixed symbology-label style as you suggest in your comment above.

1. Make sure the field that contains the relevant number you want displayed is a string type, it won't work otherwise.
2. Symbolise your point layer with your square background
3. Add a new symbol layer above the square - set the symbology type to "Font Marker"

4. Rather than setting a particular font marker, set the data defined override to equal the field that contains your marker - format as required

To get it to ask you what the number is each time you digitise a feature you need to turn on the attribute form popup for your layer. You can do this through Properties -> Fields. Then when you're editing the layer, every time you digitise a new point it will produce an input box to allow you to edit the field and will automatically display this on the map.