Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!swrinde!ucsd!ogccse!pturner
From: pturner@ogccse.ogc.edu (Paul Turner)
Newsgroups: comp.graphics
Subject: Announcing grtool - a data/function plotter for Sun's under 4.0+
Keywords: Data analysis, Graphing, Plotting
Message-ID: <4761@ogccse.ogc.edu>
Date: 16 Sep 89 06:03:31 GMT
Reply-To: pturner@ogccse.UUCP (Paul Turner)
Distribution: na
Organization: Oregon Graduate Center, Beaverton, OR
Lines: 76


Announcing the availability of grtool, a data/function plotting program
for Sun's running SunOS 4.0. I'm calling this release a Beta test.

Features:

       o Linear and polynomial regression
       o Running averages
       o Histograms
       o Numerical integration and differentiation
       o Fourier spectrum (DFT by FFT or by definition)
       o Auto and cross correlation
       o Transformations  *,/,-,+,^, +built in functions & constants
         (using this and linear regression gives exponential and power
          fits). Uses a yacc grammer. Like y=(x+1)*cos(2*PI*x/10)+1
       o Labels (x-axis, y-axis, title, subtitle)
       o Legends - placed anywhere on plot
       o Strings, rotated, sized (but not typed on the canvas).
         Subscripts, superscripts, and special symbols (I used
         the Hershey fonts).
       o Boxes and lines
       o Parameter files for saving a given plot setup
       o Batch mode for unattended plots
       o 15 sets, size limited by memory - easy to add more,
         15 is about all I've ever needed.
       o Linear, log-linear, linear-log, log-log plots
       o Many symbols, grid lines, spikes for spectral plots
         Sets can have both symbols and linestyles.
       o Linestyles, and thickness (in lieu of color).
       o Adjustable tick mark density, inward or outward pointing.
       o Autoscale
       o Flip x <-> y
       o Locate, delete individual points 
       o Set world and viewport
       o Pan and zoom
       o Can use mouse to set viewport
       o Locator (reports mouse position in world coordinates)
       o Reads ASCII data -  X Y  1 point per line,     
         X Y1 Y2 ..., and from pipes.
       o reports Mean, std. dev., min, max of each set
       o Error bars, equal or unequal, one or two sided, along X or Y
         (max 7 sets with error bars).

Hardcopy support is HPGL and PostScript. There is a hack for HP laserjets
using rasterfiles. Grtool is quite capable of producing (and has produced
many) publication quality graphs (which isn't saying much, I know).

Thanx to Jim Hudgens for the PostScript driver.

In all modesty, I believe grtool to be nearly as functional as TempleGraph
and with the inclusion of source code perhaps more so. Grtool has a distinct
price advantage.

Grtool may be acquired via anonymous ftp from cse.ogc.edu [129.95.40.2] in 
pub/grtool/grtool.tar.Z (set type binary). If you don't have Internet
access I'd be happy to send a shar archive, tapes for hardship cases only
please.

I call this version V1.0 Beta test, it will not run under SunOS 3.5 or less.
Comments regarding this program would be appreciated.

--Paul

Paul J. Turner		     
Department of Environmental Science and Engineering
Oregon Graduate Center
19600 NW von Neumann Dr.
Beaverton, OR  97006-1999
pturner@ese.ogc.edu 
(503) 690-1043  	     

-- 
Paul J. Turner		     Department of Env. Sci. and Eng.
tektronix!ogccse!pturner     Oregon Graduate Center
pturner@cse.ogc.edu 	     19600 NW Von Neumann Dr.
(503) 690-1043  	     Beaverton, OR  97006-1999