Partial Differential Equation Toolbox |

Draw Menu

Draw Mode | Enter draw mode.
Rectangle/square | Draw a rectangle/square starting at a corner. Using the left mouse button, click-and-drag to create a rectangle. Using the right mouse button (or Control-click), click-and-drag to create a square.
Rectangle/square (centered) | Draw a rectangle/square starting at the center. Using the left mouse button, click-and-drag to create a rectangle. Using the right mouse button (or Control-click), click-and-drag to create a square.
Ellipse/circle | Draw an ellipse/circle starting at the perimeter. Using the left mouse button, click-and-drag to create an ellipse. Using the right mouse button (or Control-click), click-and-drag to create a circle.
Ellipse/circle (centered) | Draw an ellipse/circle starting at the center. Using the left mouse button, click-and-drag to create an ellipse. Using the right mouse button (or Control-click), click-and-drag to create a circle.
Polygon | Draw a polygon. You can close the polygon by pressing the right mouse button. Clicking at the starting vertex also closes the polygon.
Rotate . . . | Rotate selected objects.
Export Geometry Description, Set Formula, Labels. . . | Export the Geometry Description matrix `gd`, the set formula string `sf`, and the Name Space matrix `ns` (labels) to the main workspace.

Rotate . . .

Rotate . . . opens a dialog box where you can enter the angle of rotation in degrees. The selected objects are then rotated by the number of degrees that you specify. The rotation is done counter clockwise for positive rotation angles. By default, the rotation center is the center-of-mass of the selected objects. If the Use center-of-mass option is not selected, you can enter a rotation center (xc,yc) as a 1-by-2 MATLAB vector such as `[-0.4 0.3]`.

| Options Menu |  | Boundary Menu |