Displaying 20 results from an estimated 1000 matches similar to: "rgl 'how-to's"
2006 Feb 20
1
Further rgl()/spheres3d() query
Hi,
I am applying the following code to map pca loadings onto a 3d grid, my
problem is this - the output only plots the spheres in the requested color
(in this case "red") for the first argument. The sphere from the second
argument appear as flat dark circles. Also the text3d() command only seems
to work for a couple of the positions, with no text added in most cases.
Could anyone offer
2009 Feb 16
1
Help with rgl
Hi,
I don't know much about the RGL package, and I have read the
documentation and tried some parameters, with no luck... I would like
to generate a movie from a 3D object (code below), where the vortex A
is closer to the observer, and then the object rotates and the B
vortex gets closer. I would like to capture this movie to a file.
By the way, I am not being able to insert unicode text
2012 Sep 25
1
RGL plot : cex and zlim arguments do not work
Dear all,
I have a quiet simple problem (shared by a collegue) but no solution at
yet. The arguments I use in bbox3d or text3d do not have any effect on the
graph. I need to use 'cex' and 'zlim' but It does not work. Maybe my
problem could appear trivial but I have spent a lot of time on that.
If you have a solution, please let me know!
stephane
[[alternative HTML version
2009 Aug 02
1
Character from Symbol Font on rgl Plot
I want to print characters from the symbol font (or perhaps even Wingdings)
in an rgl 3d plot, but I am having no luck. So, what do I have to do in
order to get this snippet to print out a character from the symbol font?
library(rgl)
open3d()
text3d(1,1,1,"a",adj=c(0.5,0.5),cex=10,family="symbol",font=1)
I am on Windows XP with R 2.9.1.
Tom
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2009 Apr 07
2
Annotation rgl plot
Hi,
i was wondering if there is a way to annotate rgl plot, after searching i
haven't found anything suitable. I saw function text3d but was thinking more
about text on the margin, so not interactive.
Thanks
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Sent from the R help mailing list archive at Nabble.com.
2007 Jun 05
2
biplot package
Dears,
I've been learning biplot (Gabriel, 1971) and I found the function 'biplot', inside of the package 'stats',
useful but, a bit limited.
So, I'm thinking to start a colaborative package to enhance this methods to other multivariate methods. In this
way, I would like to start it, making public a new function (biplot.pca, still in development, but running)
that make
2012 Jul 05
1
Adding Text to a persp plot using specific coordinates
Hi folks,
I'm experiencing some hassle to add some text on a persp plot...
Here is the code to generate the persp plot:
x <- seq(-1.95, 1.95, length = 30)
y <- seq(-1.95, 1.95, length = 30)
z <- outer(x, y, function(a,b) a*b^2)
persp(x, y, z,xlim=c(-2,2),ylim=c(-2,2),zlim=c(-8,8), phi=30, theta=-30,nticks=8,ticktype="detailed")
I've tried the text() function :
2011 Jul 29
2
change pch in 3dplot, export graph
Hello I was wondering if anyone has been able to change the pch value for
points in 3dplot()? I am able to change point colors just not symbol types.
I have included a portion of my code below. I realize this won't work
outside of my script, but thought, maybe there is something obvious that I
am doing wrong. Also is it possible to utilize the interactive feature of
3dplot in a
2007 Sep 24
1
save 3dplot to file
I think it is an easy question but i haven´t found a solution since I
am r beginner.
I did this
plot3d(PCoA, type="p", col=rainbow(1000),size=5)
text3d(PCoA, text=Nam)
How can I save it including the labels to a jpg-file?
Thanks in advance.
Birgit
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
2011 Feb 18
1
plot3d, color points by group
Hello
I've created a 3d scatterplot, and had no problems labeling the points.
However, I've been really struggling to change the color of the points based
on a factor (see 'group' below). Is such a thing possible?
My data look like this:
food group x y z
apple fruit 0.216 -0.112 -0.893
orange fruit 0.814 0.097 0.460
broccoli veg -0.239 0.240 -0.425
banana
2010 Apr 05
1
Using pch with the RGL library
Hi,
I am trying to compare two 3D plots. For that, I am trying to use the
"pch" parameter in the "points3d" function, but it is not working. Is
it implemented? Any suggestion?
Here goes a reproducible code. I wanted the second plot having
different symbols for the points.
x <- rbind(matrix(rnorm(100, sd = 0.3), ncol = 2),
matrix(rnorm(100, mean = 1, sd = 0.3),
2009 Apr 24
1
Wiki Access Request for Java How To's
Hello,
My name is Sean Gilligan (wikiname: SeanGilligan) and I'd like to
contribute to the CentOS wiki.
Initially I'd like to do some documentation for Java (OpenJDK) on CentOS
5.3. I've used Fedora for years, but am getting tired of the
obsolescence that keeps happening. I'm also very excited about having
an integrated Java that I can use for actual server deployments. I
2016 Sep 21
2
Proposed Contribution for the "How To's" Section
Hello,
My username is RobMorrison
The proposed subject of my Wiki contribution is "Backing up with Bacula"
Some background information in case you are not aware of Bacula:
According to Source Forge statistics (rank and downloads), Bacula is by
far the most popular Open Source backup program. It eables you (or the
system administrator) to manage backup, recovery, and verification of
2011 Jul 28
2
Animated gif or something similar in R?
I'm have a (minor) problem and a question.
Problem: The following code creates 5 clusters of dots of different
colors. However, I need the second call outside the data.frame call to
get the colors to change for some reason. I assume there's an error in
the data.frame() call, but I don't know what.
Question: Is there is a way to cause the resulting graphic to rotate on
it's
2007 Jun 11
0
biplot package II
Dear all,
I've been learning biplot (Gabriel, 1971) and some days ago I sent for
this list a procedural function with invitation for a collaborative package.
Jari Oksanen made some suggestions and I agree with all.
So, I reworked the function under the object-oriented programming
(OOP/S3). I think it is now a good frame for more resources.
Below it is the function and a small script to
2017 Mar 26
2
Custom Authentication Plugin (passdb backend)
I'm looking to create a "passdb backend" plugin so that Samba can
authenticate with our existing custom authentication system. Though I
haven't been able to locate any documentation on this, I believe it's
possible (without modifying Samba proper) for the following reasons:
- This project exists (though isn't being maintained and doesn't work
with the current
2011 Sep 09
1
Rgl and plotmath symbols (via sprites): a trial
Dear all,
Below is some code where I try to get plotmath symbols in an rgl plot. Duncan
Murdoch kindly suggested to use a "sprite" for this. As you can see, on can get
it to work, but my knowledge about grid and rgl is too limited to perfectly
solve the problem.
1) As you can see (please rotate the plot a little bit so that (0,0,0) is "in front"),
the quality of the .png
2005 Oct 05
3
transparent surface in rgl
Hi all
I am a complete newbie to this list (just subscribed) and a newcomer to
R (an S user from olden times). I have been using scatter3d to create a
3d scatter plot with surface. The graphic is created within the rgl
package and I have used rgl.postscript to export it so I can generate a
publication quality image. My problem is that the plotted surface is no
longer transparent in the
2009 Nov 26
13
How to display an image on RGL plot?
Hi all.
It's been a long time since I wrote to this list. Glad to see the R project
well and working.
I am working with a 3D plot similar to this:
http://old.nabble.com/file/p26525177/rgl-device.png rgl-device.png
The underlying picture is a JPEG image, loaded with the rimage package and
coerced to the matrix.
Spheres denote control points, collected from this picture and must be
2008 Oct 03
1
3D scatter, groups, RdbiPgSQL...
hello,
I wish to create some 3d scatter diagrams visualising different grouped
data set by a given field in the database. I tried the scatterplot3d
package, as well as the plot3d and scatter3d functions (both within the
rgl resp. Rcmdr package). My first question is, whether is it possibe to
group data in the scatterplot3d and plot3d, because I did not succeed to
use the groups = ...