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- Newsgroups: comp.graphics.gnuplot
- Path: sparky!uunet!caen!hellgate.utah.edu!irit.cs.utah.edu!gershon
- From: gershon%irit.cs.utah.edu@cs.utah.edu (Elber Gershon)
- Subject: Re: Contour Control
- Date: 17 Nov 92 14:36:11 MST
- Message-ID: <1992Nov17.143611.27374@hellgate.utah.edu>
- Organization: University of Utah CS Dept
- References: <9211120707.AA15017@elrond.physics.mcgill.ca> <1992Nov12.180723.5456@leland.Stanford.EDU> <1992Nov12.183810.10682@leland.Stanford.EDU>
- Lines: 34
-
- In article <1992Nov12.183810.10682@leland.Stanford.EDU> wolf@leland.Stanford.EDU (Andy Wolfsberg) writes:
- >
- >ONe more question while were at it.
- >I finally figured out how to contour and surface mesh
- >2-d data. You have to put a blank line after each row
- >of data (which are specified one point per line in a long column)
- This is correct. do 'help datafile' for more.
-
- >However, you can not specify the x,y locations (i,e, parametric)
- >you must set noparmetric and list only the z values
- Look at the way the glass.dat is plotted in contours.demo in the demo
- directory. It is in parametric mode, and you can plot and contour
- parametric functions/datafiles.
-
- >The problem: I have data from a 40x40 grid which represents
- >an 80x80 domain (deltaX = 2). When I contour it up, I want the
- >axis to go from 0 to 80 but they only go from 0 to 40.
- You will have to create the X & Y values (have 3 numbers,
- corresponding to X, Y & Z, in every line of your data), and
- 'set parametric'.
-
- >Does anyone know of a way to rename the axis of a noparametric
- >contour plot. I.E. keep the plot the same, just rewrite the
- >axis lables?
- If gnuplot is in noparametric mode, the X & Y axes are incremented
- uniformly by 1 starting from zero, and this is not settable by the user.
-
- Hope thats help,
-
- Gershon
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