deleteCell

Delete geometry cells

Since R2025a

Syntax

g2 = deleteCell(g1,cellIDs)

Description

g2 = deleteCell(g1,cellIDs) deletes cells specified by cellIDs from the geometry g1.

Examples

Modify Geometry by Deleting Cells

Modify the damping mounts geometry by deleting two mounts located diagonally.

Import the geometry representing four damping mounts.

g = fegeometry("DampingMounts.stl")

g = 
  fegeometry with properties:

       NumCells: 4
       NumFaces: 16
       NumEdges: 16
    NumVertices: 16
       Vertices: [16×3 double]
           Mesh: []

Plot the imported geometry. The geometry has four cells: one cell representing each mount.

pdegplot(g)

Find the IDs of the cells containing the points with these coordinates: (50,250,50) and (1450,1200,50).

cellIDs = findCell(g,[50 250 50; 1450 1200 50])

cellIDs = 1×2

     2     3

Show the two points on the geometry plot.

pdegplot(g,FaceAlpha=0.3,CellLabels="on")
hold on
scatter3([50 1450],[250 1200],[50 50],"filled","red")

Delete the cells containing the points with the specified coordinates.

g = deleteCell(g,cellIDs)

g = 
  fegeometry with properties:

       NumCells: 2
       NumFaces: 8
       NumEdges: 8
    NumVertices: 8
       Vertices: [8×3 double]
           Mesh: []

Plot the resulting geometry.

figure
pdegplot(g,CellLabels="on",FaceAlpha=0.3)

Input Arguments

g1 — 3-D geometry

fegeometry object

3-D geometry, specified as an fegeometry object.

cellIDs — Cell IDs

N-by-1 vector of positive integers

Cell IDs, specified as an N-by-1 vector of positive integers.

Output Arguments

g2 — Resulting 3-D geometry

fegeometry object

Resulting 3-D geometry, returned as an fegeometry object.

Version History

Introduced in R2025a