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NumLab(axis) - Draw numerical axis labels for a Plot?   

Description:
This attribute controls the appearance of an annotated coordinate grid (drawn with the AST_GRID routine) by determining whether labels should be drawn to represent the numerical values along each axis of a Plot. It takes a separate value for each physical axis of a Plot so that, for instance, the setting "NumLab(2)=1" specifies that numerical labels should be drawn for the second axis.

If the NumLab value of a Plot axis is non-zero (the default), then numerical labels will be drawn for that axis, otherwise they will be omitted.

Type:
Integer (boolean).

Class Applicability:
Plot
All Plots have this attribute.

Notes:
  • The drawing of associated descriptive axis labels for a Plot (describing the quantity being plotted along each axis) is controlled by the TextLab(axis) attribute.
  • If no axis is specified, (e.g. "NumLab" instead of "NumLab(2)"), then a "set" or "clear" operation will affect the attribute value of all the Plot axes, while a "get" or "test" operation will use just the NumLab(1) value.



next up previous
Next: NumLabGap(axis) - Spacing of numerical labels for a Plot
Up: AST Attribute Descriptions
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AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 210
R.F. Warren-Smith & D.S. Berry
30th April 2003
E-mail:ussc@star.rl.ac.uk

Copyright (C) 2003 Central Laboratory of the Research Councils