Apologies in advance for the question. I am trying to draw a map of the US as a surface plot so that I would be able to drop bars on the different states (something like Uwe Ligges' scatterplot3d example 4). I am not sure where to start looking for such a beast. If anyone has any pointers, ideas, I will be grateful. TIA, Partha
partha_bagchi at hgsi.com wrote:> Apologies in advance for the question. I am trying to draw a map of the US > as a surface plot so that I would be able to drop bars on the different > states (something like Uwe Ligges' scatterplot3d example 4). I am not sure > where to start looking for such a beast. If anyone has any pointers, > ideas, I will be grateful. > > TIA, > ParthaHow to "drop bars" with persp() has been described on R-help yesterday or today, please check the mailing list's archives. Uwe Ligges
Thanks for reply. I need to first draw the map of USA a perspective plot.
I guess thats where my problem was.
Partha
Uwe Ligges <ligges at statistik.uni-dortmund.de>
11/19/2004 04:33 PM
To: partha_bagchi at hgsi.com
cc: r-help at stat.math.ethz.ch
Subject: Re: 3d Map with bars
partha_bagchi at hgsi.com wrote:
> Apologies in advance for the question. I am trying to draw a map of the
US> as a surface plot so that I would be able to drop bars on the different
> states (something like Uwe Ligges' scatterplot3d example 4). I am not
sure> where to start looking for such a beast. If anyone has any pointers,
> ideas, I will be grateful.
>
> TIA,
> Partha
How to "drop bars" with persp() has been described on R-help yesterday
or today, please check the mailing list's archives.
Uwe Ligges
> From: partha_bagchi at hgsi.com > Date: Fri, 19 Nov 2004 16:53:12 -0500 > > Thanks for reply. I need to first draw the map of USA a perspective plot. > I guess thats where my problem was. >Try something like this: library(maps) states <- map("state", plot=F) x1 <- rep(0, 3) x2 <- rep(0, 3) maxz <- 1 z <- matrix(c(0, 0, 0, 0, 0, 0, maxz, maxz, maxz), 3, 3) x1[-2] <- states$range[1:2] x2[-2] <- states$range[3:4] x1[2] <- x1[3] - 1e-6 x2[2] <- x2[3] - 1e-6 pmat <- persp(x1, x2, z, xlab = "", ylab = "", zlab="", axes = F, theta=0, phi=20, d=10) lines(trans3d(states$x, states$y, 0, pmat)) latitude <- -90 longitude <- 37 myz <- 0.6 lines(trans3d(rep(latitude, 2), rep(longitude, 2), c(0, myz), pmat), col=2) where trans3d is as defined in the examples for persp(). Hope this helps, Ray Brownrigg ----> Uwe Ligges <ligges at statistik.uni-dortmund.de> > 11/19/2004 04:33 PM > > To: partha_bagchi at hgsi.com > cc: r-help at stat.math.ethz.ch > Subject: Re: 3d Map with bars > > > partha_bagchi at hgsi.com wrote: > > > Apologies in advance for the question. I am trying to draw a map of the > US > > as a surface plot so that I would be able to drop bars on the different > > states (something like Uwe Ligges' scatterplot3d example 4). I am not > sure > > where to start looking for such a beast. If anyone has any pointers, > > ideas, I will be grateful. > > > > TIA, > > Partha > > How to "drop bars" with persp() has been described on R-help yesterday > or today, please check the mailing list's archives. >
Ray,
Thanks very much. That did it.
Partha
Ray Brownrigg <ray at mcs.vuw.ac.nz>
11/21/2004 06:38 PM
To: ligges at statistik.uni-dortmund.de, partha_bagchi at hgsi.com
cc: r-help at stat.math.ethz.ch
Subject: Re: [R] Re: 3d Map with bars
> From: partha_bagchi at hgsi.com
> Date: Fri, 19 Nov 2004 16:53:12 -0500
>
> Thanks for reply. I need to first draw the map of USA a perspective
plot.> I guess thats where my problem was.
>
Try something like this:
library(maps)
states <- map("state", plot=F)
x1 <- rep(0, 3)
x2 <- rep(0, 3)
maxz <- 1
z <- matrix(c(0, 0, 0, 0, 0, 0, maxz, maxz, maxz), 3, 3)
x1[-2] <- states$range[1:2]
x2[-2] <- states$range[3:4]
x1[2] <- x1[3] - 1e-6
x2[2] <- x2[3] - 1e-6
pmat <- persp(x1, x2, z, xlab = "", ylab = "",
zlab="", axes = F,
theta=0, phi=20, d=10)
lines(trans3d(states$x, states$y, 0, pmat))
latitude <- -90
longitude <- 37
myz <- 0.6
lines(trans3d(rep(latitude, 2), rep(longitude, 2), c(0, myz), pmat),
col=2)
where trans3d is as defined in the examples for persp().
Hope this helps,
Ray Brownrigg
----> Uwe Ligges <ligges at statistik.uni-dortmund.de>
> 11/19/2004 04:33 PM
>
> To: partha_bagchi at hgsi.com
> cc: r-help at stat.math.ethz.ch
> Subject: Re: 3d Map with bars
>
>
> partha_bagchi at hgsi.com wrote:
>
> > Apologies in advance for the question. I am trying to draw a map of
the> US
> > as a surface plot so that I would be able to drop bars on the
different> > states (something like Uwe Ligges' scatterplot3d example 4). I am
not
> sure
> > where to start looking for such a beast. If anyone has any pointers,
> > ideas, I will be grateful.
> >
> > TIA,
> > Partha
>
> How to "drop bars" with persp() has been described on R-help
yesterday
> or today, please check the mailing list's archives.
>