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Don't try to write empty rendered rings/geometries to GeoPDF outputs

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Fixes issues caused when a feature is sent to the rendering engine,
but ends up being completely clipped away.
This commit is contained in:
Nyall Dawson 2020-09-21 14:09:02 +10:00
parent ef99f005de
commit 96753cfd1b
1 changed files with 3 additions and 3 deletions
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6
src/core/symbology/qgssymbol.cpp
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@ -1221,7 +1221,7 @@ void QgsSymbol::renderFeature( const QgsFeature &feature, QgsRenderContext &cont
{
for ( const LineInfo &info : qgis::as_const( linesToRender ) )
{
if ( context.hasRenderedFeatureHandlers() )
if ( context.hasRenderedFeatureHandlers() && !info.renderLine.empty() )
{
renderedBoundsGeom = renderedBoundsGeom.isNull() ? QgsGeometry::fromQPolygonF( info.renderLine )
: QgsGeometry::collectGeometry( QVector< QgsGeometry>() << QgsGeometry::fromQPolygonF( info.renderLine ) << renderedBoundsGeom );
@ -1240,7 +1240,7 @@ void QgsSymbol::renderFeature( const QgsFeature &feature, QgsRenderContext &cont
int i = 0;
for ( const PolygonInfo &info : qgis::as_const( polygonsToRender ) )
{
if ( context.hasRenderedFeatureHandlers() )
if ( context.hasRenderedFeatureHandlers() && !info.renderExterior.empty() )
{
renderedBoundsGeom = renderedBoundsGeom.isNull() ? QgsGeometry::fromQPolygonF( info.renderExterior )
: QgsGeometry::collectGeometry( QVector< QgsGeometry>() << QgsGeometry::fromQPolygonF( info.renderExterior ) << renderedBoundsGeom );
@ -1265,7 +1265,7 @@ void QgsSymbol::renderFeature( const QgsFeature &feature, QgsRenderContext &cont
break;
}
if ( context.hasRenderedFeatureHandlers() )
if ( context.hasRenderedFeatureHandlers() && !renderedBoundsGeom.isNull() )
{
QgsRenderedFeatureHandlerInterface::RenderedFeatureContext featureContext( context );
const QList< QgsRenderedFeatureHandlerInterface * > handlers = context.renderedFeatureHandlers();