cellEdges
Description
Examples
Find edges belonging to the boundaries of the two middle cylinders in a geometry consisting of four stacked cylinders.
Create a geometry that consists of four stacked cylinders.
gm = multicylinder(5,[1 2 3 4],"ZOffset",[0 1 3 6])gm =
DiscreteGeometry with properties:
NumCells: 4
NumFaces: 9
NumEdges: 5
NumVertices: 5
Vertices: [5×3 double]
Plot the geometry with the cell and edge labels.
pdegplot(gm,"CellLabels","on","EdgeLabels","on","FaceAlpha",0.2)
Find edges belonging to the boundaries of cells 2 and 3.
edgeIDs = cellEdges(gm,[2 3])
edgeIDs = 1×3
2 3 4
Find edges belonging to the boundaries of the outer cuboid in a geometry consisting of two nested cuboids.
Create a geometry that consists of two nested cuboids of the same height.
gm = multicuboid([2 5],[4 10],3)
gm =
DiscreteGeometry with properties:
NumCells: 2
NumFaces: 12
NumEdges: 24
NumVertices: 16
Vertices: [16×3 double]
Plot the geometry with the cell labels.
pdegplot(gm,"CellLabels","on","FaceAlpha",0.2)
Find all edges belonging to the boundaries of the outer cell. Show the first 10 edges.
edgeIDs = cellEdges(gm,2); edgeIDs(1:10)
ans = 1×10
1 2 3 4 5 6 7 8 9 10
From all edges belonging to the boundaries of the outer cell, return the edges belonging to only the internal faces. Internal faces are faces shared between multiple cells.
edgeIDs_int = cellEdges(gm,2,"internal")edgeIDs_int = 1×4
9 10 11 12
From all edges belonging to the boundaries of the outer cell, return the edges belonging to the external faces. Show the first 10 edges.
edgeIDs_ext = cellEdges(gm,2,"external");
edgeIDs_ext(1:10)ans = 1×10
1 2 3 4 5 6 7 8 13 14
