Exporting toolbox solutions to workspace

I want to export PDE solution (potential over the plan) back to the MATLAB environment and transform it to a solution on a rectangular grid. I have tried eporting the meshand solution from the pde ttolbox and then defining the grid and using tri2grid command. But I keep getting error message that variable p is not defined. How do I solve this?

[Raunak Gupta]

Hi Shreya,

Can you add an example code which can reproduce the error message? It will be easy for us to debug that issue if the example code is present.