similar to: rgl lighting question

Dear R community (and Duncan more specifically), I can't work out how to make additional light sources work in rgl. Here is the example. First I create a cube and visualize it: > cubo <- cube3d(col="black") > shade3d(cubo) Next I position the viewpoint at theta=0 and phi=30: > view3d(theta=0,phi=30) Next, I want to create a 2nd light source which diffuses red light

Hi, does anybody know if it is possible to use an image (rather than text) to label the leaves of a dendrogram? I realize that this will not always lead to a useful on-screen display, but ideally I'd like to directly go from the dendrogram to a PDF and on-screen viewing is not to too important for me. Also, my trees are relatively small. Any pointers would be apreciated

Hi, I have a package for which I'm writing a vignette. The vignette looks fine as indicated by R CMD check. However after installing the package (in my personal R library location) doing vignette('rcdk') says Warning message: vignette 'rcdk' *not* found But I can see the PDF file located under rcdk/doc in the R library directory. The header of the Rnw file is %

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I've been trying to identify a good way to do the following: Say I have a vector of unique, integers x <- c(1,3,2,4,5) I then have a permuted version of the above vector, say y <- c(1,3,5,2,4) Is there an easy way to get the "distance" between the two vectors. The sense I'm thinking of is such, that if we have y

Hello useRs, I would like to draw a 3D-surface using rgl with a point-like light-source within the scene, that is with finite distance of the light-source to the surface to be lit. >From the help to the 'light3d' command I read: "They [the light-sources] are positioned either in world space or relative to the camera using polar coordinates." which *could* be understood as

Hi! I've just installed wine-0.9.1 on my Fedora Core 3 system (Radeon 9600XT - fglrx-8.19.10). While TR3(demo) setup & gameplay runs okay, TR4 breaks and gives me this error output after the setup screen is thru: ALSA lib seq_hw.c:446:(snd_seq_hw_open) open /dev/snd/seq failed: No such file or dir ectory err:int:INSTR_EmulateInstruction mov cr4,eax at 0x0048da53

What is the simplest (namely: minimum number of libraries or conflicts) way to fill a polygon with a pattern? For example, suppose I have (in a graphic file, like a jpeg) the drawing of an "X". Then I fill a polygon (like a triangle) with this pattern, and get something like: X XXX XXXXX XXXXXXX (where the border "X"s could be truncated). I searched the rimage

Hi List, I am trying to plot a grid with an overlayed height. I have a dataframe with four variables: x,y,gridvalue,height. The dataframe has 2.5mio observations (ie grid points), I assign colors through the gridvalue using map_color_gradient thus producing: x,y,gridvalue,height,gridcol as variables of the dataframe. The grid dimensions are 1253 x 2001 (=2507253 data points). My attempts with

Hi all! I'm very new to R, and I'm having trouble figuring out how to go from a file of points that I have to a 3d surface plot of the data. I typically have something like this: X Y Z 0.005 0.023 34.45 0.0035 0.63 28.48 . I've tried looking at the persp and wireframe packages, and the rgl package, but I can't seem to figure out how to

Hi R users and experts, I am interested in learning more about the use of 3D plots. Specifically, I want to add points and lines to a surface plot. And get the axes and labels plotted also. Here is what I have tried with an example data set : library(rgl) vol2 <- 2*volcano # Exaggerate the relief library(reshape) mvol2 <- melt(vol2) str(mvol2) # First, persp and persp3d plots do not succeed

The Wine development release 1.7.42 is now available. What's new in this release (see below for details): - Support for dynamic timezone information. - Initial desktop shell window support. - Some more Direct2D support. - Various bug fixes. The source is available from the following locations: http://prdownloads.sourceforge.net/wine/wine-1.7.42.tar.bz2

On 21/10/2020 8:45 a.m., Balint Radics wrote: > Hello, > > Could someone suggest a package/way to make a 3D raster plot of the Earth > (with continent boundaries), and then make a "cut" or "slice" of it such > that one can also visualize some scalar quantity as a function of the > Radius/Depth across that given slice ? > > Formally, I would have a

Hello, I am trying to save a .gif movie using movie3d from the package {rgl}. I am using the following code combined with the globe example on the ?movie3d page. I've installed ImageMagick and the directory seems to be working properly, i.e. when I do Sys.getenv("PATH"), C:\\Program Files (x86)\\ImageMagick-6.7.0-Q16 shows up. #### library(rgl) open3d() lat <-

Hello, Please could someone advise if it's possible to save the graphical output from the surface3d() function? I have tried the dev.copy() function to save as a pdf but an error message says I cannot copy from the null device. Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail:

Hi R users, Does anyone know how to change the size of 3d charts? I'm using surface3d in rgl package, opening a new window each time to display the chart. I want it so that the chart fills the whole window, because when I output it to png, I don't want all the white space around the chart (right now, i'm getting this white "border" around the chart because the chart is

The Wine development release 4.5 is now available. What's new in this release (see below for details): - Support for Vulkan 1.1. - Better support for kernel objects in device drivers. - Still more Media Foundation APIs implemented. - Support for SVG elements in MSHTML. - Fixes for case conversion troubles in Turkish locale. - Various bug fixes. The source is available from the

Does anyone have a way of producing solid shapes other than spheres in rgl? I am using rgl to produce a simple visualisation of a forest model results using "lollipops". Its just a bit of fun, but as many of the trees are pines I would like to depict their crowns as cones. If there is a solution I need it to work under windows. Here is the example. library(rgl) library(misc3d)

Hi- i'm kinda busy doing other stuff at college to read through the mailing list properly, but i read somewhere before that midi data embeded in ogg vorbis files could be used to control lighting stuff. The lighting desk at college has a midi input to control most of the lighting functions. Its also right next to the sound desk. So i was wondering, if it is possible to stick midi data into

Dear All, Thanks a lot for the useful help again. I manage to get it done up to a point where I think I just need to apply some smoothing/interpolation to get denser points, to make it nice. Basically, I started from Duncen's script to visualize and make the clipping along a plane at a slice. Then I map my data points' values to a color palette and just plot them as points on this plane.

Hi, im creating a new project, it's disco/stage lighting vst: http://www.ableton.com/forum/viewtopic.php?t=71817 Now i wish to create a new media codec: AVA Codec, Audio, Video & Atmosphere Lighting ( (c)Copyright AVA Development). Where can i find a clean sample of a basic ogg codec? I could pull apart theora or vorbis source code to create such a codec, but would be far better to have