C++ (Cpp) QgsSingleSymbolRenderer::setDataDefinedSizeLegend示例

示例#1

文件： qgssinglesymbolrenderer.cpp 项目： dbaston/QGIS

QgsSingleSymbolRenderer *QgsSingleSymbolRenderer::clone() const
{
  QgsSingleSymbolRenderer *r = new QgsSingleSymbolRenderer( mSymbol->clone() );
  r->setUsingSymbolLevels( usingSymbolLevels() );
  r->setDataDefinedSizeLegend( mDataDefinedSizeLegend ? new QgsDataDefinedSizeLegend( *mDataDefinedSizeLegend ) : nullptr );
  copyRendererData( r );
  return r;
}

示例#2

文件： qgsdatadefinedsizelegendwidget.cpp 项目： exlimit/QGIS

void QgsDataDefinedSizeLegendWidget::updatePreview()
{
  QgsMarkerSymbol *symbol = mSourceSymbol->clone();
  symbol->setDataDefinedSize( mSizeProperty );
  QgsSingleSymbolRenderer *r = new QgsSingleSymbolRenderer( symbol );
  r->setDataDefinedSizeLegend( dataDefinedSizeLegend() );
  mPreviewLayer->setRenderer( r );
  mPreviewModel->refreshLayerLegend( mPreviewLayerNode );
  viewLayerTree->expandAll();
}