COMSOL Multiphysics™

postcoord
Purpose
postcoord
Get coordinates in a model in postprocessing.
Syntax
Description
coord = postcoord(fem,...)
coord = postcoord(fem,...) returns global coordinates in a model by
specifying, for example, a boundary and the number of points on the boundary.
To specify start points for particle tracing in postplot, property/values to
postcoord can be specified in the postplot property partstart.
Valid property/value pairs for postcoord are given in the following table.
TABLE 1-23: VALID PROPERTY/VALUE PAIRS
PROPERTY NAME PROPERTY VALUE DEFAULT DESCRIPTION
coord
cell array of double
vectors
Coordinates where
scalar expansion is used
dl integer vector all domains Domain list
edim -1 | 1 -1 Element dimension
frame string spatial frame Coordinate frame
geomnum positive integer 1 Geometry number
grid
positive integer or
Domain parameters
vector of domain
parameters
mcase non-negative integer Mesh case
npoints non-negative integer Number of subdomain
points, picked from
mesh vertices
(edim=-1)
solnum integer vector | all | See below Solution number
end
T double vector See below Time for evaluation
U solution object |
solution vector | scalar
fem.sol or 0
Solution(s) for
evaluation
The properties Frame, Solnum, T and U are only used when the model fem contains
moving meshes. The default behavior of Solnum and T are described in
postinterp.
Examples
% Set up a 2D geometry with a mesh and an extended mesh
clear fem
fem.geom = circ2+rect2;
fem.mesh = meshinit(fem);
324 | CHAPTER 1: COMMAND REFERENCE