CGAL Basic Library Reference Manual: Edge

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Edge Node in the Hierarchy Tree (Edge_node)

Definition

An object

en of the class Edge_node is a node holding an edge curve in the hierarchy tree.

Inherits From

Subcurve_node

In addition to the operations of Subcurve_node the following operation is implemented.

Operations

bool en.is_edge_node () returns true;

Halfedge_handle en.halfedge () returns the halfedge in the planar map that corresponds to the X_curve in en. The returned halfedge has the same direction as the x-curve cv in en (i.e., its source vertex holds the point that is the source of cv, and its target vertex holds the point that is cv's target.)

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The GALIA project. Jan 18, 2000.

bool	en.is_edge_node ()	returns true;

Halfedge_handle	en.halfedge ()	returns the halfedge in the planar map that corresponds to the X_curve in en. The returned halfedge has the same direction as the x-curve cv in en (i.e., its source vertex holds the point that is the source of cv, and its target vertex holds the point that is cv's target.)