Next Previous Up Contents
Next: Layer Controls
Up: Fixed Controls
Previous: Stilts Control

#### A.4.3.5 Aux Axis Control

The Aux Axis control () is only visible when at least one layer is using the shared colour map. The following plot layers do this:

- Aux colour mode
- Weighted colour mode
- Grid form
- Sky Density form
- Healpix control
- Line form
- Line3d form
- Spectrogram control

These all colour parts of the plot in a way that is quantitatively significant, and the Aux Axis control gives you a chance to control the details of the value-colour mapping, and to display the mapping in a colour ramp displayed beside the plot. Some other layer types (e.g. Density mode) also shade the plot according to numeric values, but use their own colour map, and don't display the colour ramp.

If no layer is using the shared colour map, then this control will not appear in the stack.

When present, this control has three tabs, Map, Ramp and Range, described below.

Note the font used for labelling the aux axis is currently controlled by the font from the Axes selector.

Next Previous Up Contents
Next: Layer Controls
Up: Fixed Controls
Previous: Stilts Control

TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk