Creating Geometry for PDE model

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Thomas Rodriguez 2022-6-20

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https://ww2.mathworks.cn/matlabcentral/answers/1744465-creating-geometry-for-pde-model

评论： Sean de Wolski 2022-6-22

I'm trying to create a 2-D domain for my PDE model. I've been using MATLAB's examples for Partial Differential Equation Toolbox as references, but none of them construct their own geometry.

What I'm trying to create is a rectangular domain which has the following specifications. X-domain: [-117.25, -117.0] and Y-domain: [32.55,33.03]

How could I do this to input into the geometryFromEdges() function?

Thank you!

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Sean de Wolski 2022-6-20

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https://ww2.mathworks.cn/matlabcentral/answers/1744465-creating-geometry-for-pde-model#answer_989825

What about the doc example isn't sufficient for you? It literally creates a rectangle.

geometryFromEdges

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Thomas Rodriguez 2022-6-21

Thank you so much!

Could you explain to me how you created R? I'm not sure what the values represent.

Sean de Wolski 2022-6-22

在 MATLAB Online 中打开

I used the doc example opened with below and modified it to suit (i.e. didn't use the circle), but the definition of R in decsg is here: https://www.mathworks.com/help/releases/R2022a/pde/ug/decsg.html#bu_fft3-gd

openExample('pde/GeometryFromDecomposedSolidGeometryExample')

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Mathematics and Optimization Partial Differential Equation Toolbox Geometry and Mesh

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R2021b

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