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Symbols and renderers

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Symbols define the non-geographic aspects of a graphic's appearance, such as color, border width, transparency, and so on. The ArcGIS Runtime SDK for Qt includes many symbol classes, each of which allows you to specify symbology in a unique way. Each symbol type is also specific to one geometry type (that is, point, line, or polygon).

Renderers define one or more symbols to apply to a graphics layer. The symbol applied to each graphic depends on the graphic's attributes. The renderer specifies which attribute values correspond to which symbol.

Symbol types

The available symbols and the geometries to which they apply are summarized in the following table:

SymbolGeometryDescription

SimpleMarkerSymbol

Point

Symbolizes points with simple shapes

PictureMarkerSymbol

Point

Symbolizes points with images

TextSymbol

Point

Symbolizes points with text

SimpleLineSymbol

Polyline

Symbolizes lines with pre-defined styles

SimpleFillSymbol

Polygon

Fills polygons with a brush