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  1: Introduction
  2: Simple example
  3: Invocation
  4: Finer Control
  5: X-Y Plots
  6: Contour Plots
  7: Image Plots
  8: Examples
  9: Gri Commands
  10: Programming
  11: Environment
  12: Emacs Mode
  13: History
  14: Installation
  15: Gri Bugs
  16: Test Suite
  17: Gri in Press
  18: Acknowledgments
  19: License

index.html#Top Environment.html#Environment Gri: extra programs that work with Gri Gri: Using System Tools With Gri index.html#Top Gri: Using System Tools With Gri

11.1: Extra things provided with Gri

11.1.1: `gri_merge' -- combine PostScript files

Merge separate PostScript files, created by Gri, into one page. To learn how it works, type `gri_merge -h' at the system prompt, to see:

PURPOSE: Strings Gri PostScript files together.

BUGS: With old versions, of gri, make sure to match each `set clip postscript on' with a `set clip postscript off'.

USAGE (style 1): gri_merge [OPTIONS] CxR ... > Merges the files onto one page, in 'C' columns and 'R' rows. The C*R files are given in the order of words on a page. The page is presumed to be 8.5x11 in size, as are all the input files, and the input files are sized to fit, and kept in natural scale.

USAGE (style 2): gri_merge [OPTIONS] xcm ycm enlarge [ ...] > Where `enlarge' is a scale factor applied after offsetting `xcm' to the right and `ycm' upward.

EXAMPLE (style 2): The following gri_merge 2 12 .5 \ 12 12 .5 \ 2 2 .5 \ 12 2 .5 > produces 4 panels from gri plots done using margins and sizes as specified in the following lines in a gri commandfile set x margin 2 set x size 15 set y margin 2 set y size 15 The OPTIONS, available if your 'perl' has 'getopts' library, are: -u graylevel -- set graylevel for underlay beneath panels, by default 0.75. Values range from 0 (black) to 1 (white), although a value of precisely 1 means do NOT draw underlay. -b graylevel -- Set value for background under individual panels, again 0 for black to 1 for white, with 1 meaning no drawing. -h -- Print this help message and quit.

11.1.2: `gri_unpage' -- split pages into files

Given a multipage PostScript file, `gri_unpage' creates several new PostScript files, one for each page. To learn how it works, type `gri_unpage -h' at the system prompt, to see:

PURPOSE: Chop multipage Gri PostScript file into one file per page.
USAGE:   gri_unpage -- create files,, etc, one
                               for each page of
         gri_unpage -h      -- print this help message

BUGS: 1. Bounding box is always 8.5x11 inches. 2. Assumes that all Gri fonts are used even if they aren't.

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