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PalLabelling: Reproject geometries before evaluating mininum size

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Followup 2b096e09
This commit is contained in:
Matthias Kuhn 2015-06-03 23:57:19 +02:00
parent d53d30d290
commit 385529ef7b
3 changed files with 15 additions and 18 deletions
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3
python/core/qgspallabeling.sip
View File

@ -747,12 +747,11 @@ class QgsPalLabeling : QgsLabelingEngineInterface
* @param geometry geometry to prepare
* @param context render context
* @param ct coordinate transform
* @param minSize minimum allowable size for feature for registration with PAL
* @param clipGeometry geometry to clip features to, if applicable
* @returns prepared geometry
* @note added in QGIS 2.9
*/
static QgsGeometry* prepareGeometry( const QgsGeometry *geometry, const QgsRenderContext &context, const QgsCoordinateTransform *ct, double minSize = 0, QgsGeometry *clipGeometry = 0 ) /Factory/;
static QgsGeometry* prepareGeometry( const QgsGeometry *geometry, const QgsRenderContext &context, const QgsCoordinateTransform *ct, QgsGeometry *clipGeometry = 0 ) /Factory/;
/** Checks whether a geometry requires preparation before registration with PAL
* @param geometry geometry to prepare

25
src/core/qgspallabeling.cpp
View File

@ -1730,24 +1730,25 @@ void QgsPalLayerSettings::registerFeature( QgsFeature& f, const QgsRenderContext
}
const GEOSGeometry* geos_geom = 0;
QScopedPointer<QgsGeometry> preparedGeom;
const QgsGeometry* preparedGeom = geom;
QScopedPointer<QgsGeometry> scpoedPreparedGeom;
if ( minFeatureSize > 0 && !checkMinimumSizeMM( context, geom, minFeatureSize ) )
if ( QgsPalLabeling::geometryRequiresPreparation( geom, context, ct, doClip ? extentGeom : 0 ) )
{
return;
}
else if ( QgsPalLabeling::geometryRequiresPreparation( geom, context, ct, doClip ? extentGeom : 0 ) )
{
preparedGeom.reset( QgsPalLabeling::prepareGeometry( geom, context, ct, minFeatureSize, doClip ? extentGeom : 0 ) );
if ( !preparedGeom.data() )
scpoedPreparedGeom.reset( QgsPalLabeling::prepareGeometry( geom, context, ct, doClip ? extentGeom : 0 ) );
if ( !scpoedPreparedGeom.data() )
return;
geos_geom = preparedGeom.data()->asGeos();
preparedGeom = scpoedPreparedGeom.data();
geos_geom = scpoedPreparedGeom.data()->asGeos();
}
else
{
geos_geom = geom->asGeos();
}
if ( minFeatureSize > 0 && !checkMinimumSizeMM( context, preparedGeom, minFeatureSize ) )
return;
if ( geos_geom == NULL )
return; // invalid geometry
@ -3398,10 +3399,8 @@ QStringList QgsPalLabeling::splitToGraphemes( const QString &text )
return graphemes;
}
QgsGeometry* QgsPalLabeling::prepareGeometry( const QgsGeometry* geometry, const QgsRenderContext& context, const QgsCoordinateTransform* ct, double minSize, QgsGeometry* clipGeometry )
QgsGeometry* QgsPalLabeling::prepareGeometry( const QgsGeometry* geometry, const QgsRenderContext& context, const QgsCoordinateTransform* ct, QgsGeometry* clipGeometry )
{
Q_UNUSED( minSize );
if ( !geometry )
{
return 0;
@ -3562,7 +3561,7 @@ void QgsPalLabeling::registerDiagramFeature( const QString& layerID, QgsFeature&
QScopedPointer<QgsGeometry> preparedGeom;
if ( QgsPalLabeling::geometryRequiresPreparation( geom, context, layerIt.value().ct, extentGeom.data() ) )
{
preparedGeom.reset( QgsPalLabeling::prepareGeometry( geom, context, layerIt.value().ct, 0, extentGeom.data() ) );
preparedGeom.reset( QgsPalLabeling::prepareGeometry( geom, context, layerIt.value().ct, extentGeom.data() ) );
if ( !preparedGeom.data() )
return;
geos_geom = preparedGeom.data()->asGeos();

5
src/core/qgspallabeling.h
View File

@ -817,12 +817,11 @@ class CORE_EXPORT QgsPalLabeling : public QgsLabelingEngineInterface
* @param geometry geometry to prepare
* @param context render context
* @param ct coordinate transform
* @param minSize minimum allowable size for feature for registration with PAL
* @param clipGeometry geometry to clip features to, if applicable
* @returns prepared geometry
* @returns prepared geometry, the caller takes ownership
* @note added in QGIS 2.9
*/
static QgsGeometry* prepareGeometry( const QgsGeometry *geometry, const QgsRenderContext &context, const QgsCoordinateTransform *ct, double minSize = 0, QgsGeometry *clipGeometry = 0 );
static QgsGeometry* prepareGeometry( const QgsGeometry *geometry, const QgsRenderContext &context, const QgsCoordinateTransform *ct, QgsGeometry *clipGeometry = 0 );
/** Checks whether a geometry requires preparation before registration with PAL
* @param geometry geometry to prepare