Surface Plot Options

Use this to set attributes to control the appearance of a surface plot.

Graph title

Lets you enter a title for the graph. The title appears centred at the top of the graph.

Title position

You can position the title by selecting the Centre, Left or Right option.

Enclose graph in box

Select this to draw an enclosing box around the graph.

Title font

This opens the Edit Font menu that lets you control the font for the title.

Viewpoint

Specifies the position of the viewpoint, and thus the orientation of the plot. The default values should usually suffice to display the plot clearly, but if, for example, some parts of the surface are hidden you can change them to obtain a better view. The Rotation and Elevation values are specified in degrees; the Distance in the same units as the axes, with a default value of 25 times the number of y points in the grid.

Draw wire frame Only

This option specifies that the surface is drawn as a wire-frame or mesh. You can select a colour for the mesh from the Colour of mesh list. When this option is selected the Colour of contours and Colour of surface options are disabled.

Colour of surface

Specifies the base colour for shading the areas between the contours. The shades are defined in increasing intensities of the selected colour.

Colour of mesh

Specifies which colour is to be used to draw the mesh.

Colour of contours

Controls whether contour lines are to be drawn on the plot. If selected, a list of colours is provided, which lets you set the colour of the contour lines.

Edit all fonts as a list

Clicking this opens the Edit All Fonts as a List dialog which allows all the fonts in the graph to be set in one place.

Action buttons

Run	Produce the graph.
Cancel	Close the dialog without further changes.
Defaults	Reset options to their default settings.

Action Icons

	Pin	Controls whether to keep the dialog open when you click Run. When the pin is down the dialog will remain open, otherwise when the pin is up the dialog will close.
	Restore	Restore names into edit fields and default settings.
	Clear	Clear all fields and list boxes.
	Help	Open the Help topic for this dialog.