#### help, histograms ####
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funct (left-click): tksurfer general help
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funct (middle-click): surface region histogram
  print_hist <datatype:0-6> <bins> <smoothsteps>
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funct (right-click): [this help]
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Detailed Description "h" Button Actions

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funct (left-click): tksurfere general help
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A default left-click on the far upper right "h"
button on tksurfer pops up general application
help (same as csurf: Help -> tksurfer).

For detailed help, R-click any interface button,
entry, or tickbox.

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funct (middle-click):
  print_hist <datatype:0-6> <bins> <smoothsteps>
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An alternate middle-click on "h" pops up a panel
to generate a histogram of the current real or
complex surface data using gnuplot (if installed:
looks for gnuplot as /usr/local/gnuplot or
/opt/local/bin/gnuplot).

The pop-up options are:

  $histtype (int: 0-6)

    0:  curvature (.curv)
    1:  real/val (.val)
    2:  complex amplitude of (.val,.val2)
    3:  complex angle of (.val,.val2)
    4:  complex angle if complex amp > $fthresh
    5:  complex angle if .stat > $sfthresh
    6:  statistic (.stat)

  $histbins (def=256, max=1024)

  $histsmoothsteps (def=0)

Each click on READY generates a new gnuplot
window.

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funct (right-click);
  helpwin tksurfer
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This help.
