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84 lines
3.0 KiB
Plaintext
84 lines
3.0 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/analysis/network/qgsgraphanalyzer.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.py again *
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************************************************************************/
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class QgsGraphAnalyzer
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{
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%Docstring(signature="appended")
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This class performs graph analysis, e.g. calculates shortest path between two
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points using different strategies with Dijkstra algorithm
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%End
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%TypeHeaderCode
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#include "qgsgraphanalyzer.h"
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%End
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public:
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static SIP_PYLIST dijkstra( const QgsGraph *source, int startVertexIdx, int criterionNum, QVector<int> *resultTree = 0, QVector<double> *resultCost = 0 );
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%Docstring
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Solve shortest path problem using Dijkstra algorithm
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:param source: source graph
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:param startVertexIdx: index of the start vertex
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:param criterionNum: index of the optimization strategy
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:param resultTree: array that represents shortest path tree. resultTree[ vertexIndex ] == inboundingArcIndex if vertex reachable, otherwise resultTree[ vertexIndex ] == -1.
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Note that the startVertexIdx will also have a value of -1 and may need special handling by callers.
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:param resultCost: array of the paths costs
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%End
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%MethodCode
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QVector< int > treeResult;
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QVector< double > costResult;
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QgsGraphAnalyzer::dijkstra( a0, a1, a2, &treeResult, &costResult );
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PyObject *l1 = PyList_New( treeResult.size() );
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if ( l1 == NULL )
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{
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return NULL;
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}
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PyObject *l2 = PyList_New( costResult.size() );
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if ( l2 == NULL )
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{
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return NULL;
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}
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int i;
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for ( i = 0; i < costResult.size(); ++i )
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{
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PyObject *Int = PyLong_FromLong( treeResult[i] );
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PyList_SET_ITEM( l1, i, Int );
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PyObject *Float = PyFloat_FromDouble( costResult[i] );
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PyList_SET_ITEM( l2, i, Float );
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}
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sipRes = PyTuple_New( 2 );
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PyTuple_SET_ITEM( sipRes, 0, l1 );
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PyTuple_SET_ITEM( sipRes, 1, l2 );
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%End
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static QgsGraph *shortestTree( const QgsGraph *source, int startVertexIdx, int criterionNum );
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%Docstring
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Returns shortest path tree with root-node in startVertexIdx
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:param source: source graph
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:param startVertexIdx: index of the start vertex
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:param criterionNum: index of the optimization strategy
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%End
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/analysis/network/qgsgraphanalyzer.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.py again *
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************************************************************************/
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