QgsFeatureRendererV2* QgsHeatmapRenderer::create( QDomElement& element )
{
QgsHeatmapRenderer* r = new QgsHeatmapRenderer();
r->setRadius( element.attribute( "radius", "50.0" ).toFloat() );
r->setRadiusUnit(( QgsSymbolV2::OutputUnit )element.attribute( "radius_unit", "0" ).toInt() );
r->setRadiusMapUnitScale( QgsSymbolLayerV2Utils::decodeMapUnitScale( element.attribute( "radius_map_unit_scale", QString() ) ) );
r->setMaximumValue( element.attribute( "max_value", "0.0" ).toFloat() );
r->setRenderQuality( element.attribute( "quality", "0" ).toInt() );
r->setWeightExpression( element.attribute( "weight_expression" ) );
QDomElement sourceColorRampElem = element.firstChildElement( "colorramp" );
if ( !sourceColorRampElem.isNull() && sourceColorRampElem.attribute( "name" ) == "[source]" )
{
r->setColorRamp( QgsSymbolLayerV2Utils::loadColorRamp( sourceColorRampElem ) );
}
r->setInvertRamp( element.attribute( "invert_ramp", "0" ).toInt() );
return r;
}
QgsFeatureRendererV2* QgsHeatmapRenderer::clone() const
{
QgsHeatmapRenderer* newRenderer = new QgsHeatmapRenderer();
if ( mGradientRamp )
{
newRenderer->setColorRamp( mGradientRamp->clone() );
}
newRenderer->setInvertRamp( mInvertRamp );
newRenderer->setRadius( mRadius );
newRenderer->setRadiusUnit( mRadiusUnit );
newRenderer->setRadiusMapUnitScale( mRadiusMapUnitScale );
newRenderer->setMaximumValue( mExplicitMax );
newRenderer->setRenderQuality( mRenderQuality );
newRenderer->setWeightExpression( mWeightExpressionString );
copyPaintEffect( newRenderer );
return newRenderer;
}