QGIS API Documentation  3.25.0-Master (dec16ba68b)
qgsvertexid.cpp
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1 /***************************************************************************
2  qgsvertexid.cpp
3  -------------------------------------------------------------------
4 Date : 04 Sept 2014
5 Copyright : (C) 2014 by Marco Hugentobler
6 email : marco.hugentobler at sourcepole dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #include "qgsvertexid.h"
17 #include "qgsabstractgeometry.h"
18 
19 bool QgsVertexId::isValid( const QgsAbstractGeometry *geom ) const
20 {
21  return ( part >= 0 && part < geom->partCount() ) &&
22  ( ring < geom->ringCount( part ) ) &&
23  ( vertex < 0 || vertex < geom->vertexCount( part, ring ) );
24 }
Abstract base class for all geometries.
virtual int ringCount(int part=0) const =0
Returns the number of rings of which this geometry is built.
int vertex
Vertex number.
Definition: qgsvertexid.h:95
int part
Part number.
Definition: qgsvertexid.h:89
int ring
Ring number.
Definition: qgsvertexid.h:92
bool isValid() const SIP_HOLDGIL
Returns true if the vertex id is valid.
Definition: qgsvertexid.h:46