Partial Differential Equation Toolbox |

pdeellip

Draw ellipse

Syntax

-     pdeellip(xc,yc,a,b,phi)
      pdeellip(xc,yc,a,b,phi,label)

Description

`pdeellip(xc,yc,a,b,phi)` draws an ellipse with center in `(xc,yc)` and semiaxes `a` and `b`. The rotation of the ellipse (in radians) is given by `phi`. If the `pdetool` GUI is not active, it is automatically started, and the ellipse is drawn in an empty geometry model.

The optional argument `label` assigns a name to the ellipse (otherwise a default name is chosen.)

The state of the Geometry Description matrix inside `pdetool` is updated to include the ellipse. You can export the Geometry Description matrix from `pdetool` by selecting the Export Geometry Description . . . option from the Draw menu. For a details on the format of the Geometry Description matrix, see `decsg`.

Examples

The command below starts `pdetool` and draws an ellipse.

-     pdeellip(0,0,1,0.3,pi/4)

See Also

`pdecirc`, `pdepoly`, `pderect`, `pdetool`

| pdeeig |  | pdeent |