Merge pull request #9307 from m-kuhn/avoid-intersection-use-geometry-…

…precision Add topological points on layers with configured precision
qgis · Mar 2, 2019 · c267992 · c267992
2 parents 252791e + 2e05cf1
commit c267992
Showing 1 changed file with 14 additions and 7 deletions.
diff --git a/src/core/qgsvectorlayereditutils.cpp b/src/core/qgsvectorlayereditutils.cpp
@@ -25,6 +25,7 @@
 #include "qgswkbtypes.h"
 #include "qgsvectorlayerutils.h"
 #include "qgsvectorlayer.h"
+#include "qgsgeometryoptions.h"
 
 #include <limits>
 
@@ -614,14 +615,20 @@ int QgsVectorLayerEditUtils::addTopologicalPoints( const QgsPointXY &p )
   double segmentSearchEpsilon = mLayer->crs().isGeographic() ? 1e-12 : 1e-8;
 
   //work with a tolerance because coordinate projection may introduce some rounding
-  double threshold = 0.0000001;
-  if ( mLayer->crs().mapUnits() == QgsUnitTypes::DistanceMeters )
-  {
-    threshold = 0.001;
-  }
-  else if ( mLayer->crs().mapUnits() == QgsUnitTypes::DistanceFeet )
+  double threshold = mLayer->geometryOptions()->geometryPrecision();
+
+  if ( qgsDoubleNear( threshold, 0.0 ) )
   {
-    threshold = 0.0001;
+    threshold = 0.0000001;
+
+    if ( mLayer->crs().mapUnits() == QgsUnitTypes::DistanceMeters )
+    {
+      threshold = 0.001;
+    }
+    else if ( mLayer->crs().mapUnits() == QgsUnitTypes::DistanceFeet )
+    {
+      threshold = 0.0001;
+    }
   }
 
   QgsRectangle searchRect( p.x() - threshold, p.y() - threshold,