## DESCRIPTION

NAGAxis renders axes and axis titles for a 1D, 2D, or 3D lattice of arbitrary type, with user control over the axes that are drawn and the position of the tick marks on each of the displayed axes. Each axis will be drawn over the full extent of the lattice in that direction, and will go through the minimum value of the lattice in the other directions (and the origin for a 1D lattice), unless specified otherwise.

The module is based upon NAG Graphics Library routines J06APF and J06AQF.

## INPUTS

**Port:** Lattice

**Type:** Lattice

**Constraints:** 1..3-D

Input lattice for which the axes are to be displayed.

## WIDGETS

**Port:** X Axis Visible?

**Type:** Radio Box

**Menu Item:** X Axis Off

**Menu Item:** X Axis On

If "X Axis Off" is selected, then no x axis will be drawn, otherwise the x axis will be drawn, and all widgets pertinent to the current choice of "X Axis Type" will be displayed.

**Port:** X Axis Type

**Type:** Option Menu

**Menu Item:** Automatic

**Menu Item:** Num Intervals

**Menu Item:** Interval Size

The position of the tick marks on the x axis is according to the type of axis selected.

If the type is "Automatic", then tick marks are drawn at equal intervals along the axis; up to ten intervals will be used. The tick mark intervals are chosen such that the interval size is always 2, 2.5, 5 or 10 multiplied by a scale factor of some power of ten. The axes are annotated with values in the range of 0.1 to 1000.0 with an appropriate scale factor plotted alongside the axis (if necessary).

If the type is "Num Intervals", then the axis will be subdivided into exactly N intervals, where N is the value selected on the widget "Num Intervals X".

If the type is "Interval Size", then the axis will be subdivided into intervals of size S, starting from the point P on the axis. S and P are the values selected on the widgets "Interval Size X" and "Start Point X", respectively.

**Port:** Num Intervals X

**Type:** Slider

The number of intervals into which the axis is to be divided. This number is used only if the axis type is "Num Intervals".

**Port:** Interval Size X

**Type:** Slider

The interval size to be used. This value is used only if the axis type is "Interval Size".

**Port:** Start Point X

**Type:** Slider

The start point for the tick marks to be displayed on the axis. This value is used only if the axis type is "Interval Size".

**Port:** X Axis Label

**Type:** Text

The label to be drawn centred below the axis. The maximum number of characters allowed is 132.

**Port:** Y Axis Visible?

**Type:** Radio Box

**Menu Item:** Y Axis Off

**Menu Item:** Y Axis On

If "Y Axis Off" is selected, then no y axis will be drawn, otherwise the y axis will be drawn, and all widgets pertinent to the current choice of "Y Axis Type" will be displayed.

**Port:** Y Axis Type

**Type:** Option Menu

**Menu Item:** Automatic

**Menu Item:** Num Intervals

**Menu Item:** Interval Size

The position of the tick marks on the y axis is according to the type of axis selected.

If the type is "Automatic", then tick marks are drawn at equal intervals along the axis; up to ten intervals will be used. The tick mark intervals are chosen such that the interval size is always 2, 2.5, 5 or 10 multiplied by a scale factor of some power of ten. The axes are annotated with values in the range of 0.1 to 1000.0 with an appropriate scale factor plotted alongside the axis (if necessary).

If the type is "Num Intervals", then the axis will be subdivided into exactly N intervals, where N is the value selected on the widget "Num Intervals Y".

If the type is "Interval Size", then the axis will be subdivided into intervals of size S, starting from the point P on the axis. S and P are the values selected on the widgets "Interval Size Y" and "Start Point Y", respectively.

**Port:** Num Intervals Y

**Type:** Slider

The number of intervals into which the axis is to be divided. This number is used only if the axis type is "Automatic".

**Port:** Interval Size Y

**Type:** Slider

The interval size to be used. This value is used only if the axis type is "Interval Size".

**Port:** Start Point Y

**Type:** Slider

The start point for the tick marks to be displayed on the axis. This value is used only if the axis type is "Interval Size".

**Port:** Y Axis Label

**Type:** Text

The label to be drawn centred below the axis. The maximum number of characters allowed is 132.

**Port:** Z Axis Visible?

**Type:** Radio Box

**Menu Item:** Z Axis Off

**Menu Item:** Z Axis On

If "Z Axis Off" is selected, then no z axis will be drawn, otherwise the z axis will be drawn, and all widgets pertinent to the current choice of "Z Axis Type" will be displayed.

**Port:** Z Axis Type

**Type:** Option Menu

**Menu Item:** Automatic

**Menu Item:** Num Intervals

**Menu Item:** Interval Size

The position of the tick marks on the z axis is according to the type of axis selected.

If the type is "Automatic", then tick marks are drawn at equal intervals along the axis; up to ten intervals will be used. The tick mark intervals are chosen such that the interval size is always 2, 2.5, 5 or 10 multiplied by a scale factor of some power of ten. The axes are annotated with values in the range of 0.1 to 1000.0 with an appropriate scale factor plotted alongside the axis (if necessary).

If the type is "Num Intervals", then the axis will be subdivided into exactly N intervals, where N is the value selected on the widget "Num Intervals Z".

If the type is "Interval Size", then the axis will be subdivided into intervals of size S, starting from the point P on the axis. S and P are the values selected on the widgets "Interval Size Z" and "Start Point Z", respectively.

**Port:** Num Intervals Z

**Type:** Slider

The number of intervals into which the axis is to be divided. This number is used only if the axis type is "Num Intervals".

**Port:** Interval Size Z

**Type:** Slider

The interval size to be used. This value is used only if the axis type is "Interval Size".

**Port:** Start Point Z

**Type:** Slider

The start point for the tick marks to be displayed on the axis. This value is used only if the axis type is "Interval Size".

**Port:** Z Axis Label

**Type:** Text

The label to be drawn centred below the axis. The maximum number of characters allowed is 132.

**Port:** Color

**Type:** Text

The color in which the axes are to be drawn. If the text typed into the slot is not recognised as a color, then the axes will be drawn in white.

**Port:** Origin Type

**Type:** Option Menu

**Menu Item:** Default

**Menu Item:** User-specified

If the type of origin is "Default" then each axis will go through the minimum value of the lattice in the other directions (and the origin for a 1D lattice). If the type of origin is "User-specified" then the axis will be drawn through the points on the other axes as specified by the widgets "X Axis Y Origin" and "X Axis Z Origin" for the x axis (and similar for the y and z axis).

**Port:** X Axis Y Origin

**Type:** Slider

If the axis origin is user-specified then the x axis will be drawn through this point on the y axis.

**Port:** X Axis Z Origin

**Type:** Slider

If the axis origin is user-specified then the x axis will be drawn through this point on the z axis.

**Port:** Y Axis X Origin

**Type:** Slider

If the axis origin is user-specified then the y axis will be drawn through this point on the x axis.

**Port:** Y Axis Z Origin

**Type:** Slider

If the axis origin is user-specified then the y axis will be drawn through this point on the z axis.

**Port:** Z Axis X Origin

**Type:** Slider

If the axis origin is user-specified then the z axis will be drawn through this point on the x axis.

**Port:** Z Axis Y Origin

**Type:** Slider

If the axis origin is user-specified then the z axis will be drawn through this point on the y axis.

## OUTPUTS

**Port:** OutputGeom

**Type:** Geometry

The output geometry containing the axes and axis labels.

## KNOWN PROBLEMS

## SEE ALSO

[Documentation Home]