Add more debug information on vertex tool assertion

m-kuhn · m-kuhn · commit 76700cda71e9 · 2018-10-15T14:28:03.000+02:00
kicks in when zooming in a lot with snapping activated
diff --git a/src/app/vertextool/qgsvertextool.cpp b/src/app/vertextool/qgsvertextool.cpp
@@ -1929,7 +1929,7 @@ bool QgsVertexTool::matchEdgeCenterTest( const QgsPointLocator::Match &m, const
     QgsGeometry lineGeom = QgsGeometry::fromPolylineXY( QgsPolylineXY() << p0 << p1 );
     lineGeom = extentGeom.intersection( lineGeom );
     QgsPolylineXY polyline = lineGeom.asPolyline();
-    Q_ASSERT( polyline.count() == 2 );
+    Q_ASSERT_X( polyline.count() == 2, "QgsVertexTool::matchEdgeCenterTest", QgsLineString( polyline ).asWkt().toUtf8().constData() );
     p0 = polyline[0];
     p1 = polyline[1];
   }

Original file line number	Diff line number	Diff line change
`@@ -1929,7 +1929,7 @@ bool QgsVertexTool::matchEdgeCenterTest( const QgsPointLocator::Match &m, const`
`1929`	`1929`	`QgsGeometry lineGeom = QgsGeometry::fromPolylineXY( QgsPolylineXY() << p0 << p1 );`
`1930`	`1930`	`lineGeom = extentGeom.intersection( lineGeom );`
`1931`	`1931`	`QgsPolylineXY polyline = lineGeom.asPolyline();`
`1932`		`- Q_ASSERT( polyline.count() == 2 );`
	`1932`	`+ Q_ASSERT_X( polyline.count() == 2, "QgsVertexTool::matchEdgeCenterTest", QgsLineString( polyline ).asWkt().toUtf8().constData() );`
`1933`	`1933`	`p0 = polyline[0];`
`1934`	`1934`	`p1 = polyline[1];`
`1935`	`1935`	`}`