TF = isEdge(TR, V1, V2) returns an array of 1/0 (true/false) flags, where each entry TF(i) is true if V1(i), V2(i) is an edge in the triangulation. V1, V2 are column vectors representing the indices of the vertices in the mesh, that is, indices into the vertex coordinate arrays.

TF = isEdge(TR, EDGE) specifies the edge start and end indices in matrix format.

Inputs

`TR`	Triangulation representation.
`V1, V2`	Column vectors of mesh vertices.
`EDGE`	Matrix of size `n`-by-2 where `n` is the number of query edges.

Outputs

`TF`	Array of 1/0 (true/false) flags, where each entry `TF(i)` is true if `V1(i)`, `V2(i)` is an edge in the triangulation.

Examples

Example 1

Load a 2-D triangulation and use TriRep to query the presence of an edge between pairs of points.

load trimesh2d
trep = TriRep(tri, x,y);

Test if vertices 3 and 117 are connected by an edge

isEdge(trep, 3, 117)

Test if vertices 3 and 164 are connected by an edge

isEdge(trep, 3, 164)

Example 2

Direct query of a 3-D Delaunay triangulation created using DelaunayTri.

X = rand(10,3)
dt = DelaunayTri(X)

Test if vertices 2 and 7 are connected by an edge

isEdge(dt, 2, 7);

isEdge - Class: TriRep

Syntax

Description

Inputs

Outputs

Examples

Example 1

Example 2

See Also

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