triangulation

Create triangulation object from fegeometry

Since R2023b

Syntax

TR = triangulation(gm)

Description

TR = triangulation(gm) creates a triangulation object from the specified fegeometry object. The geometry must have one cell in 3-D or one face in 2-D.

Examples

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2-D Triangulation

Open Live Script

Create a 2-D triangulation object from the unit square geometry.

First, create an fegeometry object representing the unit square.

gm = fegeometry(@squareg)

gm = 
  fegeometry with properties:

       NumFaces: 1
       NumEdges: 4
    NumVertices: 4
       NumCells: 0
       Vertices: [4x2 double]
           Mesh: []

Create a triangulation object from the fegeometry object.

TR = triangulation(gm)

TR = 
  triangulation with properties:

              Points: [48x2 double]
    ConnectivityList: [46x3 double]

3-D Triangulation

Open Live Script

Create a 3-D triangulation object from a cylinder.

First, create an fegeometry object representing a cylinder.

gm = fegeometry(multicylinder(5,2))

gm = 
  fegeometry with properties:

       NumFaces: 3
       NumEdges: 2
    NumVertices: 2
       NumCells: 1
       Vertices: [2x3 double]
           Mesh: []

Create a triangulation object from the fegeometry object.

TR = triangulation(gm)

TR = 
  triangulation with properties:

              Points: [98x3 double]
    ConnectivityList: [192x3 double]

Input Arguments

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`gm` — Single-domain geometry
`fegeometry` object

Single-domain geometry, specified as an fegeometry object. If you specify a 2-D geometry, it must have one face. If you specify a 3-D geometry, it must have one cell.