Displaying 20 results from an estimated 120 matches similar to: "3d topographic map [SEC=UNCLASSIFIED]"
2010 Aug 02
1
read the middle of a file
Hello,
The other day Justin Peter presented a mini program to plot a topographic map with an overlay of the worldHires. I seemed interesting so I checked the ETOPO5 site and find that there is a new file ETOPO1 with a 1 minute grid. I downloaded it and tried a similar procedure. Now the ETOPO1.gz is 1 Gb and the uncompressed file is 5 Gb. They do not fit into my laptop. I tried the following
2011 Apr 15
1
Idetntifying nearest topographic contours to data points
Hi there,
I have two data sets, one of locations at different elevations (x,y,z) and
the other of points that make up topographic contours (also x,y,z). I have
used:
result<-apply(distppll(data2,cbind(topocon[-nrow(topocon),],topocon[-1,])),1,min)
where 'data2' are my measurement coordinates (x, y) and 'topocon' are my
topographic contours (x,y). While this gives me an output
2009 Nov 23
1
Natural colours for topographic data
Dear list members
I'm currently working on some topographic (elevation) data, and was
somewhat surprised that the 'topo.colors' and 'terrain.colors' are of
little to no use here.
The problem is that these functions only return a palette of colours;
they don't map depth values to colours. So if I plot (using 'image',
'persp' or similar functions) and
2006 Jan 09
0
need palette of topographic colors similar to topo.colors ()
I will second Roger's suggestion, colorRampPalette is a great function for
creating your own palettes. For example, Matlab's jet palette (also
available in fields package under peculiar name 'tim.colors') can be defined
by:
jet.colors = colorRampPalette(c("#00007F", "blue", "#007FFF", "cyan",
"#7FFF7F", "yellow",
2010 Jul 25
2
3d topographic map
Hi All-
I would like to create a 3d topographic map using lat/lon and
z(height). I have been scouring the R help pages and have not located
the package I am looking for. Does anyone have a suggestion of package
that will work for this?
thanks-
sherri
2006 Jan 07
2
need palette of topographic colors similar to topo.colors()
Dear useRs,
I got stuck trying to generate a palette of topographic colors that
would satisfy these two requirements:
- the pallete must be 'anchored' at 0 (just like on a map), with
light blue/lawn green corresponding to data values close to 0 (dark
blue to light blue for negative values, green-yellow-brown for
positive values)
- the brown must get darker for higher positive
2010 Mar 31
2
Generative Topographic Map
I tried to use R version of package
I noticed the original MatLab Pckage is much better documented.
I had a look at the R demo code "gtm_demo" and found that variable Y is used in advanced of being created:
I wrote my own few lines as follows:
inDir <- "C:/Documents and Settings/Monville/Alanine Dipeptide/DBP1/DHA"
setwd(inDir)
T <-
2011 Dec 18
1
maptools/spatial analysis question
Hi,
I am using maptools to plot air quality data on a map. Each measurement point is mapped to a postal code area. This yields pictures with discrete borders, like so:
http://dl.dropbox.com/u/27415200/baincome.png
The problem is that the size of a postal code area doesn't mean much in this context. Moreover, only a small minority of all the postal code areas has a measurement sation. Are
2010 Jan 15
8
XEN 3.4.2 /proc/xen/balloon doesn''t exist
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
I am new to XEN. Try to move from vmware and Virtualbox (I use both now).
Unfortunately, Debian Squeeze no longer support xen (out of the box no dom0)
So I am trying to make it myself.
I have installed xen 3.4.2 from source, did make world and installed.
Got the kernel source from from the git repository with the xen patches
following the xen
2007 Nov 26
2
2d Joint Density Plot
Hi all,
I'm fairly new to R, so I'm still trying to feel out what is available to
me. I would like to be able to plot joint density in a two dimensional plot
where density is indicated by color or darkness gradients, like a 2d color
coded topographic map. Ideally, the output would be something I could then
plot other points or lines on.
Currently, I'm calculating joint density with
2003 Jun 16
2
Isocontour-lines of spatial data on a rectangular grid (not plots!)
Dear R-Listers,
I have spatial data on an equidistant rectangular grid, similar to
topographic data. I know that there are quite a few R-packages or base
functions that provide nice iso-contours plot, but I don't want a plot, just
the smoothed isocontour line of ONE level (e.g. 10 mm).
Data sets are large, so it would be preferable if the availability of
regular grid data could be exploited,
2004 Jun 07
1
filled.contour - color palette so z=0 ONLY is blue
I am trying to create a topographic map of an island - the filled.contour
function works fine except i am experiencing difficulty trying to
represent the sea properly. Basically I want the default colour blue for
any instance where z=0, if I simply use the default topo.color I get
shades of blue for z values up to 220 metres. Is there a way in which I
can specify terrain.color for all values of
2004 Aug 11
2
Advice on picking a regression method
Dear R-users,
There are tons of methods out there for fitting independant variables to a
dependent variable. All stats books tell you about the assumptions behind
OLS (ordinary least squares) and warn against abusive use of the method
(which many of us do disregard by lack of a better knowledge). Most
introductory text books stop there and don't tell you what the next best
option might be. I
1997 Apr 17
2
R-alpha: R-0.50.b6: bug in graphics demo
The line
contour(volcano, x, y, l, col = "yellow", lty = "solid", add = TRUE)
needs to be changed to
contour(x, y, volcano, col = "yellow", lty = "solid", add = TRUE)
A patch is appended below.
-k
*** demos/graphics/graphics.orig Thu Apr 17 11:02:39 1997
--- demos/graphics/graphics Thu Apr 17 11:03:08 1997
*************** plot(numeric(0), numeric(0),
2006 Feb 10
1
the proper way to use panel functions in lattice package?
Hi,
I was trying to stack a topographic map readed in from esri shapefile with a
contour map and a vector map. However, the plotMap(maptools) and
contourplot(lattice) do not seem to work well on top of each other. Here is
part of my code.
xrange<-range(225000:350000)
yrange<-range(2685000:2810000)
basemap <- read.shape("Twn25_town_dxf_Polygon.shp")
2009 May 21
1
Colour Schemes
I've been thinking hard about generating colour schemes for data.
There's quite a bit of existing code scattered in various packages for
playing with colours and colour palettes, but I can't find the sort of
thing I'm after for applying colours to data...
To my mind a colour scheme is a mapping from data values to colours.
There's a multitude of such mappings depending on the
2014 Dec 15
6
rsync output under CentOS 6
Hello Elias,
Monday, December 15, 2014, 4:13:20 PM, you wrote:
EP> Sounds like it might be differences in precision of the timestamp.
Could be, thoght the NAS box has the sending system as it's NTP server so
their times should be in sync.
EP> Check out the `--modify-window` option.
Doesn't seem to stop all the folders being listed even though nothing is
transferred.
2002 Mar 12
0
MatClass
Hello,
I have written a small set of R functions for doing Generative Topographic
Mapping and variants, and would like to write part of the code in C++ using
the MatClass Matrix Library ( http://les.man.ac.uk/ses/staff/crb/matclass/ ).
Now, my problem is even before writing the code itself, to compile the
MatClass library. Everything is OK under Windows but when trying to port the
program to
2014 Dec 15
2
rsync output under CentOS 6
Hello Les,
Sunday, December 14, 2014, 7:18:09 PM, you wrote:
LM> Folders should only be listed if timestamps or permissions are different.
Further experimentation shows this to be the case IF the destination is
another local drive.
Unfortunately the required destination is a CIFS share, which might change
things.
--
Best regards,
Niamh mailto:niamh at
2014 Dec 16
0
rsync output under CentOS 6
On Mon, 15 Dec 2014 at 11:41 -0000, Niamh Holding wrote:
> EP> Sounds like it might be differences in precision of the timestamp.
>
> Could be, thoght the NAS box has the sending system as it's NTP server so
> their times should be in sync.
>
> EP> Check out the `--modify-window` option.
>
> Doesn't seem to stop all the folders being listed even though