randress wrote
In another thread
(Basic Use --> Viewing Mesh/Grid Internal to Subdomains) an example was given for the use of plotgrid.m after exporting the 'grid' struc to Matlab.
plotgrid( grid, 'selcells', selcells(grid,'y>0.5') )
The above will plot the all grid cells where the cell 'y' coordinate is greater than 0.5.
Could you provide reference, guidance, and/or examples for using other VARARGIN parameter/value pairs may be used to, for example, plot only the grid from sub-domain 2, or how to set the grid face style and color, or transparency, etc.? References to other function implementations (.m) might be helpful.
11.316 plotgrid
PLOTGRID Grid plot function.
[ H ] = PLOTGRID( PROB, VARARGIN ) Function to plot and visualize a grid. PROB is a valid grid or
problem struct. Accepts the following property/value pairs.
Property Value/{Default} Description
----------------------------------------------------------
axis off|{on} Show axes
grid on |{off} Show grid
axequal off|{on} Axis equal setting
edges on |{off} Show internal edges (3D only)
view {[45 45]} 3D view setting
bbox {0.05} Size of bounding box (0=off)
alpha {1} Transparency level
facecolor {[.9 .9 .9]} Cell face style or fixed color
linestyle {-} Line style
linewidth {1} Line width
edgecolor {b} Line color
edgecolor {[.7 .7 .7]} Cell line color
marker {.} Node marker style
markercolor {b} Node marker color
cellabels on|{off} Show cell numbers
nodelabels on|{off} Show vertex/node numbers
fontsize {axes default} Font size used in text
selcells {all} Index vector to cells to plot
selsubd {all} Index vector to subdomains to plot
renderer {empty string}|plotly Render in Matlab/Octave or Plotly
parent {gca} Plot axes handle
setaxes {on}|off Use axes modification settings
The
plotgrid options are listed in your quote (with defaults), the propery value pair:
plotgrid( fea, 'selsubd', 2 )
selects cells in subdomain 2 to plot.
plotgrid( fea, 'selsubd', 2, 'facecolor', [1 0 0] )
also specifies rgb face color red.
plotgrid( fea, 'selsubd', 2, 'facecolor', [1 0 0], 'alpha', 0.5 )
also sets the transparency to 0.5. To find out what some of the options do you can also have a look at the Matlab documentation for plotting commands (
plot, line,
patch etc) which are used to build up the plots. For example
help plot
help patch
help alpha
For command line usage you can also save/export a model from the GUI as an Matlab m-file script (using the
File > Save As MATLAB Script... menu option) and see how the equivalent commands will look like that build up your model (you can also look at the available
FEATool m-file examples).
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