Extract data from pdeplot to use contourf

Question

Johnny Yoon 2021-3-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/758889-extract-data-from-pdeplot-to-use-contourf

评论： Johnny Yoon 2021-3-4

Hello all,

I solved a pde and plotted the result with the code as follows. From the plotted figure, I would like to extract data to plot same or similar figure using contourf. Is there any way to do? Thank you very much in advance.

model = createpde();
R1 = [3,4,0,1,1,0,0,0,1,1]';
g = decsg(R1);
geometryFromEdges(model,g);
applyBoundaryCondition(model,'dirichlet','Edge',4,'u',100);
applyBoundaryCondition(model,'neumann','Edge',1,'g',10);
specifyCoefficients(model,'m',0,...
                          'd',0,...
                          'c',-1,...
                          'a',0,...
                          'f',1);
mesh = generateMesh(model,'Hmax',0.25);
results = solvepde(model);
figure
pdeplot(model,'XYData',results.NodalSolution)