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| <title>Boost Polygon Library: Property Merge</title> |
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| <h3 class="navbar">Contents</h3> |
| <ul> |
| <li><a href="index.htm">Boost.Polygon Main Page</a></li> |
| <li><a href="gtl_design_overview.htm">Design Overview</a></li> |
| <li><a href="gtl_isotropy.htm">Isotropy</a></li> |
| <li><a href="gtl_coordinate_concept.htm">Coordinate Concept</a></li> |
| <li><a href="gtl_interval_concept.htm">Interval Concept</a></li> |
| <li><a href="gtl_point_concept.htm">Point Concept</a></li> |
| <li><a href="gtl_segment_concept.htm">Segment Concept</a></li> |
| <li><a href="gtl_rectangle_concept.htm">Rectangle Concept</a></li> |
| <li><a href="gtl_polygon_90_concept.htm">Polygon 90 Concept</a></li> |
| <li><a href="gtl_polygon_90_with_holes_concept.htm">Polygon 90 |
| With Holes Concept</a></li> |
| <li><a href="gtl_polygon_45_concept.htm">Polygon 45 Concept</a></li> |
| <li><a href="gtl_polygon_45_with_holes_concept.htm">Polygon 45 |
| With Holes Concept</a></li> |
| <li><a href="gtl_polygon_concept.htm">Polygon Concept</a></li> |
| <li><a href="gtl_polygon_with_holes_concept.htm">Polygon With |
| Holes Concept</a></li> |
| <li><a href="gtl_polygon_90_set_concept.htm">Polygon 90 Set |
| Concept</a></li> |
| <li><a href="gtl_polygon_45_set_concept.htm">Polygon 45 Set |
| Concept</a></li> |
| <li><a href="gtl_polygon_set_concept.htm">Polygon Set Concept</a></li> |
| <li><a href="gtl_connectivity_extraction_90.htm">Connectivity |
| Extraction 90</a></li> |
| <li><a href="gtl_connectivity_extraction_45.htm">Connectivity |
| Extraction 45</a></li> |
| <li><a href="gtl_connectivity_extraction.htm">Connectivity |
| Extraction</a></li> |
| <li><a href="gtl_property_merge_90.htm">Property Merge 90</a></li> |
| <li><a href="gtl_property_merge_45.htm">Property Merge 45</a></li> |
| <li>Property Merge</li> |
| <li><a href="voronoi_main.htm">Voronoi Main Page<br /> |
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| <li><a href="GTL_boostcon2009.pdf">GTL Boostcon 2009 Paper</a></li> |
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| Presentation</a></li> |
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| <li><a href="gtl_tutorial.htm">Layout Versus Schematic Tutorial</a></li> |
| <li><a href="gtl_minkowski_tutorial.htm">Minkowski Sum Tutorial</a></li> |
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| <li><a href="voronoi_advanced_tutorial.htm">Voronoi Advanced |
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| <h1>Property Merge</h1> |
| <p> </p> |
| <p>The following is the declaration of the property merge |
| algorithm.</p> |
| <p><font face="Courier New">template <typename |
| coordinate_type, typename property_type><br /> |
| class property_merge;</font></p> |
| <p>The property algorithm computes the n-layer map overlay of |
| input polygon sets. Each input geometry is inserted along with a |
| property value. The property type can be anything suitable for |
| use as an element of a std::set. Multiple geometry objects can be |
| separately inserted with the same property value. To store the |
| result of this operation a fairly complex container is required. |
| Resulting geometries are associated with unique subsets of property |
| values of the input geometry. Two suitable containers for storing |
| the result of a property merge operation are:</p> |
| <p><font face="Courier New">std::map<std::set<property_type>, |
| polygon_set_data<coordinate_type> ><br /> |
| std::map<std::vector<property_type>, |
| polygon_set_data<coordinate_type> ></font></p> |
| <p>Example code <a href="gtl_property_merge_usage.htm">property_merge_usage.cpp</a> |
| demonstrates using the n-layer map-overlay algorithm on polygon data.</p> |
| <h2>Member Functions</h2> |
| <table id="table1" border="1" width="100%"> |
| <tbody> |
| <tr> |
| <td width="586"><b><font face="Courier New">property_merge</font></b><font |
| face="Courier New">()</font></td> |
| <td>Default constructor. </td> |
| </tr> |
| <tr> |
| <td width="586"><b><font face="Courier New">property_merge</font></b><font |
| face="Courier New">(const property_merge& that)</font></td> |
| <td>Copy construct.</td> |
| </tr> |
| <tr> |
| <td width="586"><font face="Courier New">void <br /> |
| <b>insert</b>(const |
| polygon_set_data<coordinate_type>& ps,<br /> |
| const property_type& property)</font></td> |
| <td>I<font face="Times New Roman">nsert a polygon set with |
| an associated property.</font> Linear wrt vertices inserted.</td> |
| </tr> |
| <tr> |
| <td width="586"><font face="Courier New"> |
| template <class GeoObjT><br /> |
| void <b>insert</b>(const GeoObjT& geoObj,<br /> |
| const property_type& property)</font></td> |
| <td>Insert a geometry object that is a refinement of |
| polygon set with an associated property. Linear wrt vertices |
| inserted.</td> |
| </tr> |
| <tr> |
| <td width="586"><font face="Courier New"> |
| template <typename result_type><br /> |
| void <b>merge</b>(result_type& result)</font></td> |
| <td>Accepts a container object that conforms to the |
| expectations defined above. Performs property merge and populates |
| the container object. Expected n log n runtime, worst case |
| quadratic runtime wrt. vertices + intersections.</td> |
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| <td>Copyright © Intel Corporation 2008-2010.</td> |
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| <th class="docinfo-name">License:</th> |
| <td class="field-body">Distributed under the Boost Software |
| License, Version 1.0. (See accompanying file <tt class="literal"> <span |
| class="pre">LICENSE_1_0.txt</span></tt> or copy at <a |
| class="reference" target="_top" |
| href="http://www.boost.org/LICENSE_1_0.txt"> |
| http://www.boost.org/LICENSE_1_0.txt</a>)</td> |
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