Path: utzoo!mnetor!uunet!husc6!mailrus!tut.cis.ohio-state.edu!rutgers!mtunx!whuts!homxb!genesis!hotlr!anumb!adh
From: adh@anumb.UUCP (a.d.hay)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Selection of Axes scale, intervals for a set of points
Message-ID: <230@anumb.UUCP>
Date: 29 Apr 88 12:58:24 GMT
References: <2656@phoenix.Princeton.EDU>
Reply-To: adh@anumb.UUCP (a.d.hay)
Organization: AT&T Bell Laboratories - MV
Lines: 37
Keywords: need an algorithm

In article <2656@phoenix.Princeton.EDU> amlovell@phoenix.Princeton.EDU (Anthony M Lovell) writes:
>I looked in the library till my head hurt (I'm no expert at library
>use), so I'm going to ask if any netter can refer me to (or supply) a
>good algorithm for determining "nice" ranges and intervals for 
>plotting a set of points.  I can have the points "on hand", so I'll know
>the max and min for both x and y components.  Then...
>it's sorta tricky to have the computer apply the same hazy decisions a
>person would use in determining an appealing set of axes for the graph.
>Can anyone help me and keep me from reinventing the wheel?
>
how 'bout using integer division on the min & max?
divide by 5 or 10 (for example) then round away from the data range.
>-- 
>amlovell@phoenix.princeton.edu     ...since 1963.
>
>disclaimer:
>These are MY opinions.  You only WISH they were yours.
no, i don't, either!

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-- 
Andrew Hay		+------------------------------------------------------+
AT&T-BL Ward Hill MA	|	"Don`t try to out-wierd ME, three-eyes!"       |
ihnp4!mvuxq!adh		+------------------------------------------------------+