sharpetronics/QGIS
1
0
Fork 0
mirror of https://github.com/qgis/QGIS.git synced 2025-03-01 00:46:20 -05:00
Code Issues Packages Projects Releases Wiki Activity

[geometry] optimize point distance to point

Browse Source
This commit is contained in:
nirvn 2018-06-04 16:50:21 +07:00 committed by Mathieu Pellerin
parent 84806b9161
commit 783b6b8120
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/core/geometry/qgsgeometry.cpp
View File

@ -1595,6 +1595,12 @@ double QgsGeometry::distance( const QgsGeometry &geom ) const
return -1.0;
}
// avoid calling geos for trivial point-to-point distance calculations
if ( QgsWkbTypes::flatType( d->geometry->wkbType() ) == QgsWkbTypes::Point && QgsWkbTypes::flatType( geom.wkbType() ) == QgsWkbTypes::Point )
{
return qgsgeometry_cast< const QgsPoint * >( d->geometry.get() )->distance( *qgsgeometry_cast< const QgsPoint * >( geom.constGet() ) );
}
QgsGeos g( d->geometry.get() );
mLastError.clear();
return g.distance( geom.d->geometry.get(), &mLastError );