debian man page for plslabelfunc

PLSLABELFUNC(3plplot)						    PLplot API						     PLSLABELFUNC(3plplot)

NAME
       plslabelfunc - Assign a function to use for generating custom axis labels

SYNOPSIS
       plslabelfunc(label_func, label_data)

DESCRIPTION
       This  function  allows a user to provide their own function to provide axis label text.	The user function is given the numeric value for a
       point on an axis and returns a string label to correspond with that value.  Custom axis labels can be enabled by passing appropriate  argu-
       ments to plenv(3plplot), plbox(3plplot), plbox3(3plplot) and similar functions.

       This function is used in example 19.

ARGUMENTS
       label_func (void (*) (PLINT, PLFLT, char *, PLINT, void *), input)
	      This  is	the  custom label function.  In order to reset to the default labeling, set this to NULL. The labeling function parameters
	      are, in order: .TP axis This indicates which axis a label is being requested for. The value will be one of PL_X_AXIS,  PL_Y_AXIS	or
	      PL_Z_AXIS.

       value  This is the value along the axis which is being labeled.

       label_text
	      The string representation of the label value.

       length The maximum length in characters allowed for label_text.

       label_data (void *, input)
	      This parameter may be used to pass data to the label_func function.

AUTHORS
       Geoffrey  Furnish  and  Maurice LeBrun wrote and maintain PLplot.  This man page was automatically generated from the DocBook source of the
       PLplot documentation, maintained by Alan W. Irwin and Rafael Laboissiere.

SEE ALSO
       PLplot documentation at http://plplot.sourceforge.net/resources.

								   August, 2012 					     PLSLABELFUNC(3plplot)