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pdesurf

(Removed) Surface plot of PDE node or triangle data

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pdesurf has been removed. Use pdeplot instead. For information on updating your code, see Version History.

Syntax

pdesurf(p,t,u)
h = pdesurf(p,t,u)

Description

pdesurf(p,t,u) plots a 3-D surface using PDE node or triangle data as a height for a 2-D problem. The p and t arguments specify the geometry of the PDE problem.

If u is a column vector, pdesurf treats it as node data and uses continuous style and interpolated shading. If u is a row vector, pdesurf treats it as triangle data and uses discontinuous style and flat shading.

h = pdesurf(p,t,u) returns handles to the drawn axes objects.

Input Arguments

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Mesh points, specified as a 2-by-Np matrix of points, where Np is the number of points in the mesh. For details on the mesh data representation, see initmesh.

Data Types: double

Mesh triangles, specified as a 4-by-Nt matrix of triangles, where Nt is the number of triangles in the mesh. For details on the mesh data representation, see initmesh.

Data Types: double

PDE solution, specified as a vector.

The pdesurf function treats a column vector as node data and uses continuous style and interpolated shading. The function treats a row vector as triangle data and uses discontinuous style and flat shading.

Data Types: double

Output Arguments

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Handles to graphics objects, returned as a vector.

Tips

  • For more control over a surface plot, use the pdeplot function.

Version History

Introduced before R2006a

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R2024a: Errors

The pdesurf function has been removed.

To update your code for plotting a solution u at nodes, change instances of the function call pdesurf(p,t,u) to the function call:

pdeplot(p,[],t,'XYData',u,'ZData',u,'ColorBar','off')

To update your code for plotting a solution ut at midpoints of mesh triangles, change instances of the function call pdecont(p,t,ut) to the function call:

pdeplot(p,[],t,'XYData',ut,'XStyle','flat', ...
               'ZData',ut,'ZStyle','discontinuos', ...
               'ColorBar','off')

pdeplot gives you more control over your surface plot.

Note that the legacy workflow that uses the [p,e,t] mesh is not recommended. New features might not be compatible with this legacy workflow. For description of the mesh data in the recommended workflow, see Mesh Data.

See Also

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