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+C
+C                                                                               
+C +-----------------------------------------------------------------+           
+C |                                                                 |           
+C |                Copyright (C) 1986 by UCAR                       |           
+C |        University Corporation for Atmospheric Research          |           
+C |                    All Rights Reserved                          |           
+C |                                                                 |           
+C |                 NCARGRAPHICS  Version 1.00                      |           
+C |                                                                 |           
+C +-----------------------------------------------------------------+           
+C                                                                               
+C                                                                               
+C ---------------------------------------------------------------------
+C
+      SUBROUTINE AGCHAX (IFLG,IAXS,IPRT,VILS)
+C
+C The routine AGCHAX is called by AGAXIS just before and just after each
+C of a selected set of objects on the axes are drawn.  A user may supply
+C a version to change the appearance of these objects.  The arguments
+C are as follows:
+C
+C - IFLG is zero if a particular object is about to be drawn, non-zero
+C   if it has just been drawn.
+C
+C - IAXS is the number of the axis in question.  The values 1, 2, 3, and
+C   4 imply the right, left, bottom, and top axes, respectively.
+C
+C - IPRT is an integer implying which part of the axis is being drawn.
+C   The value 1 implies the line itself, 2 a major tick, 3 a minor tick,
+C   4 the mantissa of a label, and 5 the exponent of a label.
+C
+C - VILS is the value, in the label coordinate system along the axis,
+C   associated with the position of the object being drawn.  IPRT=1
+C   implies VILS=0.
+C
+C Done.
+C
+      RETURN
+C
+      END