GEOS 3.11.1
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A node in a PlanarGraph is a location where 0 or more Edge meet. More...
#include <Node.h>
Public Member Functions | |
Node (const geom::Coordinate &newPt) | |
Constructs a Node with the given location. | |
Node (geom::Coordinate &newPt, DirectedEdgeStar *newDeStar) | |
Constructs a Node with the given location and collection of outgoing DirectedEdges. Takes ownership of the given DirectedEdgeStar!! | |
geom::Coordinate & | getCoordinate () |
Returns the location of this Node. | |
void | addOutEdge (DirectedEdge *de) |
Adds an outgoing DirectedEdge to this Node. | |
DirectedEdgeStar * | getOutEdges () |
Returns the collection of DirectedEdges that leave this Node. | |
const DirectedEdgeStar * | getOutEdges () const |
size_t | getDegree () const |
Returns the number of edges around this Node. | |
int | getIndex (Edge *edge) |
Returns the zero-based index of the given Edge, after sorting in ascending order by angle with the positive x-axis. | |
Public Member Functions inherited from geos::planargraph::GraphComponent | |
virtual bool | isVisited () const |
Tests if a component has been visited during the course of a graph algorithm. More... | |
virtual void | setVisited (bool p_isVisited) |
Sets the visited flag for this component. More... | |
virtual bool | isMarked () const |
Tests if a component has been marked at some point during the processing involving this graph. More... | |
virtual void | setMarked (bool p_isMarked) |
Sets the marked flag for this component. More... | |
Static Public Member Functions | |
static std::vector< Edge * > * | getEdgesBetween (Node *node0, Node *node1) |
Returns all Edges that connect the two nodes (which are assumed to be different). More... | |
Static Public Member Functions inherited from geos::planargraph::GraphComponent | |
template<typename T > | |
static void | setVisited (T start, T end, bool visited) |
Sets the Visited state for the elements of a container, from start to end iterator. More... | |
template<typename T > | |
static void | setVisitedMap (T start, T end, bool visited) |
Sets the Visited state for the values of each map container element, from start to end iterator. More... | |
template<typename T > | |
static void | setMarked (T start, T end, bool marked) |
Sets the Marked state for the elements of a container, from start to end iterator. More... | |
template<typename T > | |
static void | setMarkedMap (T start, T end, bool marked) |
Sets the Marked state for the values of each map container element, from start to end iterator. More... | |
Protected Attributes | |
geom::Coordinate | pt |
The location of this Node. | |
DirectedEdgeStar * | deStar |
The collection of DirectedEdges that leave this Node. | |
Protected Attributes inherited from geos::planargraph::GraphComponent | |
bool | isMarkedVar |
Variable holding ''marked'' status. | |
bool | isVisitedVar |
Variable holding ''visited'' status. | |
Friends | |
std::ostream & | operator<< (std::ostream &os, const Node &) |
Print a Node. | |
A node in a PlanarGraph is a location where 0 or more Edge meet.
A node is connected to each of its incident Edges via an outgoing DirectedEdge. Some clients using a PlanarGraph
may want to subclass Node
to add their own application-specific data and methods.
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static |
Returns all Edges that connect the two nodes (which are assumed to be different).
Note: returned vector is newly allocated, ownership to the caller.