GEOS  3.8.0dev
FacetSequenceTreeBuilder.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2016 Daniel Baston
7  *
8  * This is free software; you can redistribute and/or modify it under
9  * the terms of the GNU Lesser General Public Licence as published
10  * by the Free Software Foundation.
11  * See the COPYING file for more information.
12  *
13  **********************************************************************
14  *
15  * Last port: operation/distance/FacetSequenceTreeBuilder.java (f6187ee2 JTS-1.14)
16  *
17  **********************************************************************/
18 
19 #ifndef GEOS_OPERATION_DISTANCE_FACETSEQUENCETREEBUILDER_H
20 #define GEOS_OPERATION_DISTANCE_FACETSEQUENCETREEBUILDER_H
21 
22 #include <geos/index/strtree/STRtree.h>
23 #include <geos/geom/Geometry.h>
24 #include <geos/geom/CoordinateSequence.h>
25 #include <geos/operation/distance/FacetSequence.h>
26 
27 namespace geos {
28 namespace operation {
29 namespace distance {
30 class GEOS_DLL FacetSequenceTreeBuilder {
31 private:
32  // 6 seems to be a good facet sequence size
33  static const int FACET_SEQUENCE_SIZE = 6;
34 
35  // Seems to be better to use a minimum node capacity
36  static const int STR_TREE_NODE_CAPACITY = 4;
37 
38  static void addFacetSequences(const geom::CoordinateSequence* pts, std::vector<FacetSequence*>& sections);
39  static std::vector<FacetSequence*>* computeFacetSequences(const geom::Geometry* g);
40 
41 public:
42  static geos::index::strtree::STRtree* build(const geom::Geometry* g);
43 };
44 }
45 }
46 }
47 
48 #endif //GEOS_FACETSEQUENCETREEBUILDER_H
A query-only R-tree created using the Sort-Tile-Recursive (STR) algorithm. For two-dimensional spatia...
Definition: STRtree.h:64
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25