I get this error in PDE toolbox, I don't know why.

Question

Kaveh Gharibi 2016-7-28

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https://ww2.mathworks.cn/matlabcentral/answers/297572-i-get-this-error-in-pde-toolbox-i-don-t-know-why

评论： Kaveh Gharibi 2016-8-2

采纳的回答： Damian Sheehy

Error using pdevoron (line 30) Geometry error.

Error in pderespe (line 126) [p,t,c,h]=pdevoron(p,t,c,h,x,y,tol,Hmax,Hgrad);

Error in initmesh (line 157) [p,e,t,c]=pderespe(g,p,e,t,c,Hmax,tol,tol2,Hmax,Hgrad);

Error in pdegplot>plotTwoDGeometry (line 112) [p1,~,t1]=initmesh(g,'hmax',0.1,'init','on', 'MesherVersion','R2013a');

Error in pdegplot (line 75) hh = plotTwoDGeometry(g, plotEdgeNums, plotSubLabels);

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Answer 1

Damian Sheehy 2016-8-1

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https://ww2.mathworks.cn/matlabcentral/answers/297572-i-get-this-error-in-pde-toolbox-i-don-t-know-why#answer_230452

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When you plot a geometry in shaded mode, the function calls initmesh to generate triangles that can be used to pass to graphics for shading. There is a bug in the pdegplot function that is leading to a failure in the generation of the triangles. Replace line 112 of the pdegplot function with the following:

[p1,~,t1]=initmesh(g,'init','on', 'MesherVersion','R2013a');

If that fails to resolve the issue please let me know. This bug will be fixed in the next release.

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Kaveh Gharibi 2016-8-1

Thank you very much! I will try and see what happens.

Kaveh Gharibi 2016-8-2

编辑：Kaveh Gharibi 2016-8-2

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I got the same error again. I changed that line as you mentioned but I still get the same error.|

Error using pdevoron (line 30)
Geometry error.
Error in pderespe (line 126)
  [p,t,c,h]=pdevoron(p,t,c,h,x,y,tol,Hmax,Hgrad);
Error in initmesh (line 157)
[p,e,t,c]=pderespe(g,p,e,t,c,Hmax,tol,tol2,Hmax,Hgrad);
Error in pdegplot>plotTwoDGeometry (line 112)
[p1,~,t1]=initmesh(g,'init','on', 'MesherVersion','R2013a');
Error in pdegplot (line 75)
        hh = plotTwoDGeometry(g, plotEdgeNums, plotSubLabels);