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.

Plot

• 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.