pdecont

Shorthand command for contour plot

This page describes the legacy workflow. New features might not be compatible with the legacy workflow.

Syntax

pdecont(p,t,u)
pdecont(p,t,u,n)
pdecont(p,t,u,v)
h = pdecont(p,t,u)
h = pdecont(p,t,u,n)
h = pdecont(p,t,u,v)

Description

pdecont(p,t,u) draws 10 level curves of the PDE node or triangle data u. h = pdecont(p,t,u) additionally returns handles to the drawn axes objects.

If u is a column vector, node data is assumed. If u is a row vector, triangle data is assumed.

The geometry of the PDE problem is given by the mesh data p and t. For details on the mesh data representation, see Mesh Data.

pdecont(p,t,u,n) plots using n levels.

pdecont(p,t,u,v) plots using the levels specified by v.

This command is just shorthand for the call

pdeplot(p,[],t,'XYData',u,'XYStyle','off','Contour',...
'on','Levels',n,'ColorBar','off'); 

If you want to have more control over your contour plot, use pdeplot instead of pdecont.

Examples

Contour Plot of the Solution

Plot the contours of the solution to the equation over the geometry defined by the L-shaped membrane. Use Dirichlet boundary conditions on .

[p,e,t] = initmesh('lshapeg'); 
[p,e,t] = refinemesh('lshapeg',p,e,t); 
u = assempde('lshapeb',p,e,t,1,0,1); 
pdecont(p,t,u)