facesAttachedToEdges
Description
FaceID = facesAttachedToEdges(g,RegionID,FilterType)RegionID. This syntax is valid for 3-D geometries only.
Examples
Find faces attached to particular edges of a block.
Create a block geometry.
gm = multicuboid(3,2,1)
gm =
DiscreteGeometry with properties:
NumCells: 1
NumFaces: 6
NumEdges: 12
NumVertices: 8
Vertices: [8×3 double]
Plot the geometry with the edge labels.
pdegplot(gm,"EdgeLabels","on","FaceAlpha",0.2)
Find faces attached to edges 1, 2, and 5.
faceIDs = facesAttachedToEdges(gm,[1 2 5])
faceIDs = 1×4
1 2 5 6
Plot the geometry with the face labels.
figure pdegplot(gm,"FaceLabels","on","FaceAlpha",0.2)
Find faces attached to particular edges of the L-shaped membrane.
Create a model and include this geometry. The geometry of the L-shaped membrane is described in the file lshapeg.
model = createpde(); gm = geometryFromEdges(model,@lshapeg)
gm =
AnalyticGeometry with properties:
NumCells: 0
NumFaces: 3
NumEdges: 10
NumVertices: 8
Vertices: [8×2 double]
Plot the geometry with the edge labels.
pdegplot(gm,"EdgeLabels","on")
Find faces attached to edges 7 and 10.
faceIDs = facesAttachedToEdges(gm,[7 10])
faceIDs = 1×2
1 2
Plot the geometry with the face labels.
figure pdegplot(gm,"FaceLabels","on")
Find internal and external faces attached to the edges of the inner 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 edge labels.
pdegplot(gm,"EdgeLabels","on","FaceAlpha",0.2)
Find all faces attached to the top edges of the inner cuboid.
facesAttachedToEdges(gm,[5:8])
ans = 1×6
2 3 4 5 6 12
Find only the internal faces attached to the top edges of the inner cuboid. Internal faces are faces shared between multiple cells.
facesAttachedToEdges(gm,[5:8],"internal")ans = 1×4
3 4 5 6
Find only the external faces attached to the top edges of the inner cuboid.
facesAttachedToEdges(gm,[5:8],"external")ans = 1×2
2 12
Plot the geometry with the face labels.
figure pdegplot(gm,"FaceLabels","on","FaceAlpha",0.2)
