Fix altitude clamping for points without Z values

qgis · Apr 9, 2019 · 78da017 · 78da017
1 parent b5fec58
commit 78da017
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/3d/qgs3dutils.cpp b/src/3d/qgs3dutils.cpp
@@ -256,7 +256,9 @@ float Qgs3DUtils::clampAltitude( const QgsPoint &p, Qgs3DTypes::AltitudeClamping
     terrainZ = map.terrainGenerator()->heightAt( pt.x(), pt.y(), map );
   }
 
-  float geomZ = altClamp == Qgs3DTypes::AltClampAbsolute || altClamp == Qgs3DTypes::AltClampRelative ? p.z() : 0;
+  float geomZ = 0;
+  if ( p.is3D() && ( altClamp == Qgs3DTypes::AltClampAbsolute || altClamp == Qgs3DTypes::AltClampRelative ) )
+    geomZ = p.z();
 
   float z = ( terrainZ + geomZ ) * map.terrainVerticalScale() + height;
   return z;