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2-D Geometry

Define 2-D problem geometry

For 2-D problems, you can create 2-D geometry via the constructive solid geometry (CSG) or the geometry function approach. Using the CSG approach, you can use a set of solid building blocks (square, rectangle, circle, ellipse, and polygon) and combine them to define complex geometries. For details, see Create 2-D Geometry.

The PDE app uses the CSG approach. For details, see Create 2-D Geometry in the PDE App.


geometryFromEdges Create 2-D geometry
pdegplot Plot PDE geometry
decsg Decompose constructive solid geometry into minimal regions
csgchk Check validity of Geometry Description matrix
csgdel Delete borders between minimal regions
pdearcl Interpolation between parametric representation and arc length
wgeom Write geometry specification function
pdetool Open PDE app
pdecirc Draw circle
pdeellip Draw ellipse
pdepoly Draw polygon
pderect Draw rectangle


AnalyticGeometry Properties 2-D geometry description


Programmatic Workflow

Create 2-D Geometry

Choose an approach for creating a 2-D geometry.

Create CSG Geometry at the Command Line

Create a 2-D geometry by using the constructive solid geometry (CSG) modeling approach.

Create Geometry Using a Geometry Function

Describe a 2-D geometry by using a parametrized function.

PDE App Workflow

Create 2-D Geometry in the PDE App

Create a 2-D geometry interactively by drawing, rotating, and combining basic shapes.

Rounded Corners Using CSG Modeling

Represent a geometry with rounded corners (fillets) by using the Constructive Solid Geometry modeling approach.

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