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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

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9.3.42: `show'

`show ...'

Show some information by printing it to standard output.

  • `show all' Show lots of information about plot.

  • `show axes' Show information about axes.

  • `show color' Show the current pen color used for lines and text. This is not to be confused with image color, which is independent.

  • `show colornames' Show all colors known by name, as defined by `read colornames' command and also the builtin colors defined automatically (e.g. `white', `black', `red', etc), (see Read Colornames).

  • `show columns' Show x, y, z, u, v column data.

  • `show columns statistics' Show means, std devs, etc for columns.

  • `show flags' Show values of all flags. (Developers only.)

  • `show grid' Show an indication of the grid data (used for contouring).

  • `show grid mask' Show 1 if grid data are valid or 0 if contours will not extend into this region.

  • `show image' Show information about image, such as a histogram of values, and, if the image is small enough, the actual data.

  • `show license' Show the license for Gri, which outlines how users are allowed to share it freely.

  • `show misc' Show miscellaneous information about the plot, the data, etc.

  • `show next line' Show next line of data-file.

  • `show synonyms' Show values of all synonyms, whether built-in or user-defined.

  • `show stopwatch' Show elapsed time since first call to this command in the given Gri program.

  • `show time' Show the current time.

  • `show traceback' Show traceback (i.e., the tree of commands being done at this instant).

  • `show variables' Show values of all variables, whether built-in or user-defined.

  • `show .value.' Show value of indicated variable.

  • `show {rpn ...}' Show result of computing indicated expression.

  • `show "some text"' Print the indicated string. You may use a double-slash to prevent Gri from substituting synonym values; thus it is common to do e.g.

    \var = "Temperature"
    show "Plotting \\var = 'var'"

    which will produce the output line

    Plotting \\var = 'Temperature'

  • `show "time=" .time. "; depth=" .depth.' Print strings and values as indicated. If the last item is ellipses (three dots with no spaces between them), then no newline is printed; this makes the next `show' statement print on the same line.

    To get a newline in a printed string, use the three-character glyph `\<<', and to get a horizontal tab, use `\>>', as in the examples below

    \a = "HI"
    show "\\a=\a"		
    system echo -e "a\\nb"
    show "first line\<<second line"
    show "first line\<<\>>(tabbed) second line"
    show "first line\<<\>>(tabbed) second line"

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