Mastering the QGIS Python API - Building Mapping Applications with QGIS - page 168

• symbol.insertSymbolLayer(index, symbol_layer) : This inserts a
symbol layer at a given index.
• symbol.deleteSymbolLayer(index) : This removes the symbol layer at
the given index.

Note

Remember that to use the symbol once you've created it, you create an appropri-
ate renderer and then assign that renderer to your map layer. For example:

renderer = QgsSingleSymbolRendererV2(symbol)
layer.setRendererV2(renderer)

The following symbol layer classes are available for you to use:

PyQGIS class Description Example

This displays a
point geometry as
a small colored
circle.

QgsSimpleMarkerSymbolLayerV2

This displays a
point geometry as
an ellipse.

QgsEllipseSymbolLayerV2

This displays a
point geometry as
a single character.
You can choose
the font and char-
acter to be dis-
played.

QgsFontMarkerSymbolLayerV2

This displays a
point geometry
using a single
SVG format im-
age.

QgsSvgMarkerSymbolLayerV2