C++ (Cpp) fromPolygon示例

示例#1

文件： qgsgeometryimport.cpp 项目： Br1ndavoine/QGIS

QgsAbstractGeometryV2* QgsGeometryImport::fromMultiPolygon( const QgsMultiPolygon& multipoly )
{
  QgsMultiPolygonV2* mp = new QgsMultiPolygonV2();
  for ( int i = 0; i < multipoly.size(); ++i )
  {
    mp->addGeometry( fromPolygon( multipoly.at( i ) ) );
  }
  return mp;
}

示例#2

文件： qgsgeometryfactory.cpp 项目： GeoCat/QGIS

std::unique_ptr< QgsMultiPolygonV2 > QgsGeometryFactory::fromMultiPolygon( const QgsMultiPolygon &multipoly )
{
  std::unique_ptr< QgsMultiPolygonV2 > mp( new QgsMultiPolygonV2() );
  for ( int i = 0; i < multipoly.size(); ++i )
  {
    mp->addGeometry( fromPolygon( multipoly.at( i ) ).release() );
  }
  return mp;
}

示例#3

文件： qgsgeometryimport.cpp 项目： Br1ndavoine/QGIS

QgsAbstractGeometryV2* QgsGeometryImport::fromRect( const QgsRectangle& rect )
{
  QgsPolyline ring;
  ring.append( QgsPoint( rect.xMinimum(), rect.yMinimum() ) );
  ring.append( QgsPoint( rect.xMaximum(), rect.yMinimum() ) );
  ring.append( QgsPoint( rect.xMaximum(), rect.yMaximum() ) );
  ring.append( QgsPoint( rect.xMinimum(), rect.yMaximum() ) );
  ring.append( QgsPoint( rect.xMinimum(), rect.yMinimum() ) );

  QgsPolygon polygon;
  polygon.append( ring );

  return fromPolygon( polygon );
}