similar to: [R] color palette from red to blue passing white (shifted from R-help)

As part of my GSoC project I have to work out a spec that covers how applications should communicate color management related properties between each other and the compositing manager. The main idea of the project is to let the compositing manager do the color management on behalf of the applications. But before that can happen, the applications have to tell the compositing manager how they want

I have installed wine-20050628-mdk.i586.rpm on a Mandrake 10.2 system for x86_64 with kernel-2.6.11.6mdk-1-1mdk. When I start Adobe Photoshop 6.0 which I installed with wine I am always getting the following messages with errors: [root@localhost ~]# wine '/root/.wine/drive_c/Program Files/Adobe/Photoshop 6.0/Photoshp.exe' err:ole:CoGetClassObject class

Hi All, I am looking for a color palette like this: http://www.ncl.ucar.edu/Applications/Images/h_long_5_lg.png I think I found out how some time ago (something like Colors[1:n]), but when I now wanna use it, I could not remember how I did it. Does anyone know which package I could use? Many thanks! Linda [[alternative HTML version deleted]]

Hi All, I am looking for a color palette like this: http://www.ncl.ucar.edu/Applications/Images/h_long_5_lg.png I think I found out how some time ago (something like Colors[1:n]), but when I now wanna use it, I could not remember how I did it. Does anyone know which package I could use? Many thanks! Linda [[alternative HTML version deleted]]

Hi all, I had the need to create a colorbar considering the alpha channel of the colors, but colorRamp() and colorRampPalette() ignored the alpha argument in rgb(). So I performed some minor modifs. in their codes, as to support the interpolation using the alpha channel. I guess that those simple modifications might be useful for other people, so perhaps it would be worth to add them to

It appears that the chromatic adaptation feature of `grDevices::convertColor`is broken, and likely has been for many years.? While a little surprising, it is an obscure enough feature that there is some possibility this is actually broken, as opposed to user error on my part.? If it turns out to the latter, I apologize in advance for spamming this list. Consider: ??? rgb.in <-

`grDevices::convertColor` performance can be improved by 30-300x with small changes to the code. `colorRamp(space='Lab')` uses `convertColor` so it too benefits from substantial performance gains. `convertColor` vectorizes explicitly over the rows of the input color matrix using `apply`. The level-1 patch [1] illustrates a possible minimal set of changes to achieve this with just R

Dear useRs, we have just released a new version (1.2-0) of the "colorspace" package: http://CRAN.R-project.org/package=colorspace In addition to the infrastructure for transforming colors between different color spaces (RGB, HSV, HCL, and various others) and support for different types of color palettes (qualitative, sequential, diverging), there is now a new graphical user

Dear useRs, we have just released a new version (1.2-0) of the "colorspace" package: http://CRAN.R-project.org/package=colorspace In addition to the infrastructure for transforming colors between different color spaces (RGB, HSV, HCL, and various others) and support for different types of color palettes (qualitative, sequential, diverging), there is now a new graphical user

Hi, I'm kinda new of the R world. I need to use the heatmap or heatmap.2 function to plot correlation values. 2 questions: - how can I specify a color palette? (would like to have a transition from blue(-1) to white(0) to red(1)) - how can I use heatmap.2 imposing a specific order (like hclust.order)? I mean, I don't want heatmap.2 to re-cluster/re-order my data but just to plot them

grDevices::convertColor has arguments 'from' and 'to' which can take on value 'XYZ'. Can someone confirm that 'XYZ' is the same as the CIE chromaticity coordinates that are also sometimes refered to as 'xyY' in the literature? Or are these the CIE tristimulus values? It looks to me like the first case is true, but I would appreciate hearing from one of

dear R experts---I am struggling with the requirements to prepare my files for my printers. I am printing in 2/2 format, which means cyan and black for me, which they take from my color-separated pdf files. R comes into play, because it produces all the figures that are embedded in my book (pdflatex). now, TeX has no problems producing CMYK files. However, R produces RGB files (for

Greetings, After pouring over the documentation for the 'colorspace' package, I have not been able to figure out how the plot() method converts colorspace coordinates to RGB values for display on the screen. I am convert between colorspaces with the various as() methods... but cannot seem to find a way to extract RGB (i.e. for displaying on a computer screen) triplets from color space

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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

Hi everyone, I am trying to install colorspace (needed as part of my favourite ggplot2) on R v 2.7.0 running under ubuntu 7.04. The package is provided as source files and the compilation fails as below. I suspect this might be a problem with gcc v3/v4 incompatibility (or anything else), but I don't really know how to resolve it. Any advice will be appreciated - or perhaps somebody has got

Dear all, I'm having problems installing the colorspace package on Red Hat Enterprise Linux 5: * Installing *source* package 'colorspace' ... ** libs gcc -std=gnu99 -I/usr/lib/R/include -I/usr/lib/R/include -I/usr/local/include -fpic -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic

Timothy B. Terriberry wrote: >Chapter 4 of the Theora specification does a reasonable job of laying >out all of the possible parameters for a Y'CbCr-style color space, which >includes as a subset those needed for RGB. Much more detailed >information is available from Charles Poynton's Color and Gamma FAQs: >http://www.poynton.com/Poynton-color.html >If you wish to do any

I have lots of data that I need to display, and I think hexbin would be good for it. However, I cannot load one of the requried packages associated with the hexbin package: > library(hexbin) Loading required package: colorspace Error in loadNamespace(package, c(which.lib.loc, lib.loc), keep.source = keep.source) : in 'colorspace' methods for export not found: [, coords, plot

I am setting up a new Ubuntu lucid system on a Dell Precision T3500, quad core, E5507, x86_64 box and am having some difficulty updating r-cran packages as per the instructions at http://cran.us.r-project.org/bin/linux/ubuntu Perhaps the instructions are incomplete or wrong, or I've misunderstood something, and/or I've run into a dependency problem among r-cran- packages, vcd in