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fix rendering of mesh triangle with 0,0 vertex

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Peter Petrik 2019-04-17 10:12:44 +02:00
parent d332292863
commit fd492abffe
1 changed files with 19 additions and 4 deletions
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23
src/core/mesh/qgsmeshlayerutils.cpp
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@ -123,10 +123,25 @@ double QgsMeshLayerUtils::interpolateFromFacesData( const QgsPointXY &p1, const
QgsRectangle QgsMeshLayerUtils::triangleBoundingBox( const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3 )
{
QgsRectangle bbox;
bbox.combineExtentWith( p1.x(), p1.y() );
bbox.combineExtentWith( p2.x(), p2.y() );
bbox.combineExtentWith( p3.x(), p3.y() );
// p1
double xMin = p1.x();
double xMax = p1.x();
double yMin = p1.y();
double yMax = p1.y();
//p2
xMin = ( ( xMin < p2.x() ) ? xMin : p2.x() );
xMax = ( ( xMax > p2.x() ) ? xMax : p2.x() );
yMin = ( ( yMin < p2.y() ) ? yMin : p2.y() );
yMax = ( ( yMax > p2.y() ) ? yMax : p2.y() );
// p3
xMin = ( ( xMin < p3.x() ) ? xMin : p3.x() );
xMax = ( ( xMax > p3.x() ) ? xMax : p3.x() );
yMin = ( ( yMin < p3.y() ) ? yMin : p3.y() );
yMax = ( ( yMax > p3.y() ) ? yMax : p3.y() );
QgsRectangle bbox( xMin, yMin, xMax, yMax );
return bbox;
}