pdeviz

R2026b

Create and plot PDE visualization object

Syntax

pdeviz(MeshData,NodalData)

pdeviz(MeshData)

pdeviz(___,Name=Value)

pdeviz(figure,___)

V = pdeviz(___)

Description

pdeviz(MeshData,NodalData) creates a PDEVisualization object and plots the data at the mesh nodes as a surface plot. For details, see PDEVisualization Properties.

pdeviz(MeshData) creates a PDEVisualization object and plots the mesh.

pdeviz(___,Name=Value) customizes the plot appearance using one or more Name=Value arguments. Use name-value arguments with any combination of arguments from the previous syntaxes.

pdeviz(figure,___) specifies the graphics container for the PDEVisualization object. For example, you can plot the object in Figure 3 by specifying pdeviz(figure(3), ___).

V = pdeviz(___) returns a handle to the PDEVisualization object, using any of the previous syntaxes.

Examples

Mesh and Solution of Structural Model

Use the pdeviz function to create a PDE visualization object and plot it. Change the properties of this object to interact with the resulting plot.

Create an femodel object for static structural analysis and include a beam geometry into the model.

model = femodel(AnalysisType="structuralStatic", ...
                Geometry="SquareBeam.stl");

Plot the geometry.

pdegplot(model.Geometry,FaceLabels="on",FaceAlpha=0.5)

Specify Young's modulus and Poisson's ratio.

model.MaterialProperties = ...
    materialProperties(PoissonsRatio=0.3, ...
                       YoungsModulus=210E3);

Specify that face 6 is a fixed boundary.

model.FaceBC(6) = faceBC(Constraint="fixed");

Specify the surface traction for face 5.

model.FaceLoad(5) = faceLoad(SurfaceTraction=[0;0;-2]);

Generate a mesh and solve the problem.

model = generateMesh(model);
structuralresults = solve(model);

Call pdeviz with only the mesh data. This call creates a PDEVisualization object and plots the mesh.

v = pdeviz(structuralresults.Mesh)

v = 
  PDEVisualization with properties:

        MeshData: [1×1 FEMesh]
       NodalData: [0×1 double]
     MeshVisible: on
    Transparency: 1
        Position: [0.1300 0.1130 0.6664 0.7960]
           Units: 'normalized'

  Show all properties

Update the plot by adding the von Mises stress as the NodalData property of the PDEVisualization object v. The plot now shows the von Mises stress and the mesh.

v.NodalData = structuralresults.VonMisesStress;

Update the plot by adding the displacement as the DeformationData property of the PDEVisualization object v. The plot shows the deformed shape with the von Mises stress.

v.DeformationData = structuralresults.Displacement;

Update the plot to hide the mesh.

v.MeshVisible = "off";

Update the plot to hide the axes.

v.AxesVisible = "off";

Input Arguments

MeshData — Finite element mesh

FEMesh object

Finite element mesh, specified as an FEMesh object.

NodalData — Data at mesh nodes

column vector

Data at mesh nodes, specified as a column vector.

Data Types: double

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Example: pdeviz(model.Mesh,results.NodalSolution,MeshVisible="on",DeformationData=results.Displacement)

Transparency — Surface transparency

1 (default) | real number from 0 through 1

Surface transparency, specified as a real number from 0 through 1. The default value 1 indicates no transparency. The value 0 indicates complete transparency.

Data Types: double

MeshVisible — Toggle to show mesh

"on" | "off" | on/off logical value

Toggle to show mesh, specified as "on" or "off", or as numeric or logical 1 (true) or 0 (false). A value of "on" is equivalent to true, and "off" is equivalent to false. Thus, you can use the value of this argument as a logical value.

When plotting only the mesh, the default is "on". Otherwise, the default is "off".

Data Types: char | string

DeformationData — Mesh deformation data

FEStruct object | matrix | structure array

Mesh deformation data, specified as one of the following:

• An FEStruct object with the properties ux, uy, and, for a 3-D geometry, uz

• A structure array with the fields ux, uy, and, for a 3-D geometry, uz

• A matrix with either two columns for a 2-D geometry or three columns for a 3-D geometry

DeformationScaleFactor — Level of mesh deformation

nonnegative number

Level of mesh deformation, specified as a nonnegative number. Use this name-value argument together with DeformationData.

pdeviz computes the default value of DeformationScaleFactor based on the mesh and the value of DeformationData.

Data Types: double

AxesVisible — Toggle to hide or show axes

"on" (default) | "off" | on/off logical value

Toggle to hide or show axes, specified as "on" or "off", or as numeric or logical 1 (true) or 0 (false). A value of "on" is equivalent to true, and "off" is equivalent to false. Thus, you can use the value of this argument as a logical value.

AxesColor — Background color

RGB triplet | hexadecimal color code | "r" | "g" | "b"

Background color, specified as an RGB triplet, a hexadecimal color code, a color name, or a short name.

ColorbarVisible — Colorbar visibility

"on" (default) | on/off logical value

Colorbar visibility, specified as "on" or "off", or as numeric or logical 1 (true) or 0 (false). A value of "on" is equivalent to true, and "off" is equivalent to false. Thus, you can use the value of this property as a logical value. The value is stored as an on/off logical value of type matlab.lang.OnOffSwitchState.

ColorLimits — Color limits

two-element vector

Color limits, specified as a two-element vector of the form [min max]. The color limits indicate the color data values that map to the first and last colors in the colormap.

Title — Chart title

character vector | cell array of character vectors | string array | categorical array

Chart title, specified as a character vector, cell array of character vectors, string array, or categorical array.

Example: "My Title Text"

To create a multi-line title, specify a cell array of character vectors or a string array. Each element in the array corresponds to a line of text.

Example: {"My","Title"};

If you specify the title as a categorical array, MATLAB^® uses the values in the array, not the categories.

If you create the chart using tabular data, the default chart has an autogenerated title. If you do not want a title, specify "".

ToolbarVisible — Display axes toolbar

"on" (default) | on/off logical value

Display the axes toolbar, specified as "on" or "off", or as numeric or logical 1 (true) or 0 (false). A value of "on" is equivalent to true, and "off" is equivalent to false. Thus, you can use the value of this property as a logical value. The value is stored as an on/off logical value of type matlab.lang.OnOffSwitchState.

• "on" — Display the toolbar.

• "off" — Do not display the toolbar.

For more information about the axes toolbar, see Control Chart Interactivity.

View — Azimuth and elevation of view

[0 90] (default) | two-element vector of the form [azimuth elevation]

Azimuth and elevation of view, specified as a two-element vector of the form [azimuth elevation] defined in degree units. Alternatively, use the view function to set the view.

Output Arguments

V — Visualization container

handle

Visualization container, returned as a handle to the PDEVisualization object. For details, see PDEVisualization Properties.

Version History

Introduced in R2021a

R2026b: Display or hide axes toolbar using ToolbarVisible argument

Display or hide the axes toolbar by using the ToolbarVisible argument. The axes toolbar is visible by default, but you can hide it by setting the ToolbarVisible value to "off".