/* makehsv.aml
/* aml to construct grids and coverages needed to make an HS(V) color chart
/*    Ralph Haugerud, U.S. Geological Survey
/*    Harvey Greenberg, Geological Sciences, University of Washington
/*    April 1998
/*        rhaugerud@usgs.gov, hgreen@u.washington.edu
/* to be run from arc
/* output is 3 grids: hgrid with values from 0 to 360 (left to right)
/*                    sgrid with values from 0 to 100 (bottom to top)
/*                    vgrid = 98 
/* and one coverage of lines, hscov, that rule hue-saturation space 
/* into 10x10 cells

/* The following whistle--or something similar--can be added to most AMLs.
&if [show program] ne 'ARC' &then
  &return This aml must be run from the arc prompt.

/* make a line coverage to rule off hue - sat space
generate hscov
fishnet
1,1   /* origin
1,10   /* y-axis coordinate
10,10 /* cell size
10,36 /* number of rows, columns
quit

/* make H, S, and V grids
GRID
setwindow 1 1 361 101
setcell 1
hgrid = $$colmap 
sgrid = 100 - $$rowmap
vgrid = 98
QUIT

&return