isWatertight

Check if surface mesh is watertight

Since R2022b

Syntax

TF = isWatertight(mesh)

Description

TF = isWatertight(mesh) checks if the mesh is watertight. A mesh is watertight when it is edge-manifold and vertex-manifold, but not self-intersecting.

Examples

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Check If Surface Mesh Is Watertight

Open Live Script

Define mesh vertices and faces for the surface mesh.

vertices = [1 -1  1; 1 1 1; -1 1 1; -1 -1 1; ...
            1 -1 -1; 1 1 -1; -1 1 -1; -1 -1 -1];
faces = [6 2 1; 1 5 6; 8 4 3; 3 7 8; 6 7 3; 3 2 6; ...
         5 1 4; 4 8 5; 4 1 2; 2 3 4; 7 6 5; 5 8 7];

Create and display the surface mesh.

mesh = surfaceMesh(vertices,faces);
surfaceMeshShow(mesh,Title="Input Mesh")

Check if the mesh is watertight.

TF = isWatertight(mesh)

TF = logical
   1

Input Arguments

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`mesh` — Surface mesh
`surfaceMesh` object

Surface mesh, specified as a surfaceMesh object.

Output Arguments

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`TF` — Surface mesh is watertight
`0` | `1`

Surface mesh is watertight, returned as a logical 0 (false) or 1 (true). The function returns true when the mesh is watertight. Otherwise, it returns false.