Martin Dobias 4f829fde62 Port Intersection algorithm to C++, cleanups and tests
Finally starting a suite of unit tests for overlay algorithms:
- overlay1 - layers that cover various basic overlay situations
- overlay2 - layers where one input has self-intersecting polygons
- overlay3 - layers where intersections return different geometry types
2018-04-17 19:12:58 +02:00

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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://ogr.maptools.org/ intersection3.xsd"
xmlns:ogr="http://ogr.maptools.org/"
xmlns:gml="http://www.opengis.net/gml">
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<gml:Box>
<gml:coord><gml:X>2</gml:X><gml:Y>2</gml:Y></gml:coord>
<gml:coord><gml:X>6</gml:X><gml:Y>3</gml:Y></gml:coord>
</gml:Box>
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<gml:featureMember>
<ogr:intersection3 fid="intersection3.0">
<ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:3857"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>3,2 2,2 2,3 3,3 3,2</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
<ogr:id_a>A1</ogr:id_a>
<ogr:id_b>B1</ogr:id_b>
</ogr:intersection3>
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<gml:featureMember>
<ogr:intersection3 fid="intersection3.1">
<ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:3857"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>6,2 5,2 5,3 6,3 6,2</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
<ogr:id_a>A1</ogr:id_a>
<ogr:id_b>B4</ogr:id_b>
</ogr:intersection3>
</gml:featureMember>
</ogr:FeatureCollection>