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Re: Plot and axes
*To*: mathgroup at smc.vnet.net
*Subject*: [mg52210] Re: [mg52197] Plot and axes
*From*: "David Park" <djmp at earthlink.net>
*Date*: Sun, 14 Nov 2004 20:15:07 -0500 (EST)
*Sender*: owner-wri-mathgroup at wolfram.com
Steven,
Specify the ticks and grids as follows.
Plot[0, {x, -4, 4},
PlotRange -> {-4, 4},
Frame -> False,
Ticks -> {Range[-4, 4, 1], Range[-4, 4, 1]},
GridLines -> {Range[-4, 4, 1], Range[-4, 4, 1]},
AspectRatio -> .9,
ImageSize -> 400];
There are two small problems with that. Why is the AspectRatio 0.9 instead
of Automatic or 1. Wouldn't a square grid be preferable in this case, which
I guess is just making a piece of graph paper.
A second problem is in using Axes instead of a Frame. The grid lines hide
the minus signs on the negative y axis, and also the tick labels are in the
middle of the graph paper where they can interfer with a plotted graph. If
you page through Science magazine, say, it is nearly impossible to find a
graph with axes and tick labels in the middle of the graph. A Frame resolves
these problems.
Plot[0, {x, -4, 4},
PlotRange -> {{-4, 4}, {-4, 4}}1.05,
Frame -> True,
Axes -> False,
FrameTicks -> {Range[-4, 4, 1], Range[-4, 4, 1], None, None},
GridLines -> {Range[-4, 4, 1], Range[-4, 4, 1]},
AspectRatio -> Automatic,
ImageSize -> 400];
Also, if you just want to make graph paper, it can be done without the
artifice of plotting a zero function. Here I label only every other tick to
make the graph paper less cluttered.
Show[Graphics[{}],
PlotRange -> {{-4, 4}, {-4, 4}}1.05,
Frame -> True,
Axes -> False,
FrameTicks -> {Range[-4, 4, 2], Range[-4, 4, 2], None, None},
GridLines -> {Range[-4, 4, 1], Range[-4, 4, 1]},
AspectRatio -> Automatic,
ImageSize -> 400];
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/
-----Original Message-----
From: Steven Shippee [mailto:slshippee at comcast.net]
To: mathgroup at smc.vnet.net
Subject: [mg52210] [mg52197] Plot and axes
I would like to get the marks on my "x" axis to show as '1, 2, 3, 4', just
like the "y" axis, but by default they show as '2,4' - is there an easy way
to find this in the help files?
coordaxes =
Plot[0, {x, -4, 4}, PlotRange -> {-4, 4}, Frame -> False,
GridLines -> Automatic, AspectRatio -> .9, ImageSize -> 400];
I did an
Options[Plot]
but could not figure out how to do it from there.
Thanks in advance,
Steven Shippee
slshippee at comcast.net
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