22 #ifndef GEOS_GEOMGRAPH_EDGE_H
23 #define GEOS_GEOMGRAPH_EDGE_H
25 #include <geos/export.h>
29 #include <geos/geomgraph/GraphComponent.h>
30 #include <geos/geomgraph/Depth.h>
31 #include <geos/geomgraph/EdgeIntersectionList.h>
32 #include <geos/geom/CoordinateSequence.h>
33 #include <geos/geom/Envelope.h>
35 #include <geos/inline.h>
39 #pragma warning(disable: 4251)
45 class IntersectionMatrix;
49 class LineIntersector;
67 using GraphComponent::updateIM;
72 std::unique_ptr<index::MonotoneChainEdge> mce;
88 assert(pts->size() > 1);
91 friend std::ostream& operator<< (std::ostream& os,
const Edge& el);
96 std::unique_ptr<geom::CoordinateSequence>
pts;
111 return pts->getSize();
115 getCoordinates()
const
122 getCoordinate(
size_t i)
const
125 return pts->getAt(i);
128 virtual const geom::Coordinate&
129 getCoordinate()
const
132 return pts->getAt(0);
156 setDepthDelta(
int newDepthDelta)
158 depthDelta = newDepthDelta;
163 getMaximumSegmentIndex()
const
166 return getNumPoints() - 1;
169 virtual EdgeIntersectionList&
170 getEdgeIntersectionList()
186 return pts->getAt(0) == pts->getAt(getNumPoints() - 1);
195 virtual Edge* getCollapsedEdge();
198 setIsolated(
bool newIsIsolated)
200 isIsolatedVar = newIsIsolated;
205 isIsolated()
const override
208 return isIsolatedVar;
224 size_t geomIndex,
size_t intIndex);
241 virtual std::string print()
const;
243 virtual std::string printReverse()
const;
255 equals(
const Edge* e)
const
267 operator==(
const Edge& a,
const Edge& b)
272 std::ostream& operator<< (std::ostream& os,
const Edge& el);
A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...
Definition: LineIntersector.h:49
The internal representation of a list of coordinates inside a Geometry.
Definition: CoordinateSequence.h:58
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
An Envelope defines a rectangulare region of the 2D coordinate plane.
Definition: Envelope.h:58
Implementation of Dimensionally Extended Nine-Intersection Model (DE-9IM) matrix.
Definition: IntersectionMatrix.h:54
A Depth object records the topological depth of the sides of an Edge for up to two Geometries.
Definition: Depth.h:42
A list of edge intersections along an Edge.
Definition: EdgeIntersectionList.h:60
Definition: geomgraph/Edge.h:66
Edge(geom::CoordinateSequence *newPts, const Label &newLabel)
Takes ownership of CoordinateSequence.
virtual void addIntersections(algorithm::LineIntersector *li, size_t segmentIndex, size_t geomIndex)
Adds EdgeIntersections for one or both intersections found for a segment of an edge to the edge inter...
void computeIM(geom::IntersectionMatrix &im) override
Update the IM with the contribution for this component.
Definition: geomgraph/Edge.h:232
virtual bool isCollapsed() const
An Edge is collapsed if it is an Area edge and it consists of two segments which are equal and opposi...
virtual void addIntersection(algorithm::LineIntersector *li, size_t segmentIndex, size_t geomIndex, size_t intIndex)
Add an EdgeIntersection for intersection intIndex.
virtual index::MonotoneChainEdge * getMonotoneChainEdge()
Return this Edge's index::MonotoneChainEdge, ownership is retained by this object.
virtual bool isPointwiseEqual(const Edge *e) const
return true if the coordinate sequences of the Edges are identical
std::unique_ptr< geom::CoordinateSequence > pts
Externally-set, owned by Edge. FIXME: refuse ownership.
Definition: geomgraph/Edge.h:96
Edge(geom::CoordinateSequence *newPts)
Takes ownership of CoordinateSequence.
virtual int getDepthDelta() const
The depthDelta is the change in depth as an edge is crossed from R to L.
Definition: geomgraph/Edge.h:149
virtual bool equals(const Edge &e) const
A GraphComponent is the parent class for the objects' that form a graph.
Definition: geomgraph/GraphComponent.h:47
A Label indicates the topological relationship of a component of a topology graph to a given Geometry...
Definition: Label.h:59
MonotoneChains are a way of partitioning the segments of an edge to allow for fast searching of inter...
Definition: MonotoneChainEdge.h:46
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:26