Maple provides two plot grid styles, Rectangular and Triangular, for 3-D surfaces with a style of Surface with Wireframe, Wireframe, or Wireframe (Opaque surface). The default grid style is Rectangular.

Once a plot is created, you can change the grid style.

Click the plot to select it.

From the Plot menu, select Grid Style.

Select from Triangular or Rectangular.

Note: Use the gridstyle option in the plot3d command to specify the grid style when creating a standard plot using Maple commands.

For gridlines, see Axes Style: Gridlines in Anchored Frame.