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Size and Rotation can be defined by an expression for all symbols composing a marker. Width can be defined by an expression for all symbols composing a line. For markers, a legend is generated for varying sizes. This allows multivariate analysis legend in the case of classified/graduated colors. The offset is now set along with size to maintain the relative position of symbols composing a marker. An asistant, with preview, is accessible through the data defined button to help the user define the size expression. Three methods are available: Frannery, Area and Radius. Added a widget for use in categorized/classified symbology gui to set the expression if needed. The assistant is also available from it.
12 lines
251 B
Plaintext
12 lines
251 B
Plaintext
class QgsSizeScaleWidget : QgsDataDefinedAssistant
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{
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%TypeHeaderCode
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#include <qgssizescalewidget.h>
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%End
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public:
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QgsSizeScaleWidget( const QgsVectorLayer * layer, const QgsMarkerSymbolV2 * symbol );
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QgsDataDefined dataDefined() const;
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};
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