Questions on the color models, schemes, named colors and color functions supported by Mathematica.

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12
votes
1answer
561 views

PieChart with radial coloring/color function

I am trying to visually compare multiple functions that depend on a single argument running from $0$ to $1$. They describe a radial property and so I thought it would be nice to use a kind of ...
1
vote
1answer
719 views

PlotStyle in ListPlot: change color scheme, manually choose color of first plot

Say i have this data: data1 = Map[Cos, Range[0, 20]]; data2 = Map[Sin, Range[0, 20]]; And i want to plot data1 in gray and a ...
1
vote
1answer
144 views

Apply ColorData scheme for Plot from green to red

I'd like to apply a ColorData to this plot: ...
3
votes
2answers
133 views

I want to change the outer background color of a manipulated plot

I downloaded some demonstrations' sources (for example) and I want to change their colors. I am only stuck with the white outer background that is around the plot's yellow background. I would like to ...
0
votes
0answers
157 views

Frame and white background not working (all other colours are fine)

Though my question my be related to this one, it doesn't look like it can easily be solved in the same way, so I hope not to be double-posting. I am trying to insert a framed number/text into a ...
3
votes
3answers
198 views

Plot sublists as different colors

I have one big list with many sublists inside. All sublists consist of three numbers. For example: ...
2
votes
1answer
304 views

Normalize the PlotLegends and z values for two DensityPlot

I'm trying to compare two DensityPlots: ...
15
votes
6answers
1k views

How to find major color in a picture?

I want to find the major color (the color which appears most often) in a picture and do some analysis later. For example, if I have this picture: What I want to do is find out that gray, red, ...
2
votes
2answers
503 views

Spreading colors in ListContourPlot

I have a data file with triplets. The first two numbers indicate the x and y position, while the third one is the log10 value of a particular indicator. I want to create a 2D plot in which the ...
1
vote
0answers
49 views

Scaled ColorData Function [duplicate]

I have a four-dimensional array c, in which the first dimension represents time and the other three dimensions represent (x,y,z) ...
2
votes
2answers
300 views

ColorFunction based on data

I have a list of numbers, and I would like to plot them using ArrayPlot (which is easy, usually :)). I would like to be able to color the elements of the plot based on the average of the list: one ...
3
votes
4answers
687 views

Hue shade colours

Looking at the plot below, how can I know what colours made the Hue shade? ...
9
votes
2answers
885 views

How to calculate mix of 4 colors defined in CIELAB L*a*b* model?

I have 4 colors that I converted from RGB to CIELAB L*a*b* model. How can I calculate mix of these 4 colors when I have (L,a,b) for each such color? How can I ...
4
votes
1answer
457 views

Calculating pleasant colors for source code or web-design

I really like when the programs or editors I use have pleasant colors. Sometimes when there's nothing else to do or sometimes when there are very important, but incredibly boring things to do, I find ...
6
votes
3answers
639 views

Adapt ColorFunction in Array Plot

The problem I'm facing is how to adapt ColorFunction so that it ranges from green (low values) to red (high values): ...
5
votes
3answers
617 views

Parameters for the CIE XYZ Color Space in Mathematica

In Mathematica, producing a color based on its RGB parameters is easy; one can use (for example) ...
5
votes
2answers
823 views

Plot3D with coloring based on phase value of f

I'm reading a sample chapter of Visual Complex Functions by E. Wegert. Near the bottom of this page, there is a link "Download Sample pages 1 (pdf, 2.4 MB)" which allows you to read Chapter 2 of the ...
13
votes
3answers
379 views

Impose the color for one discrete value above a color predefined gradient

If I plot an array with option ColorFunction -> "Rainbow" : ...
2
votes
2answers
758 views
1
vote
2answers
233 views

How to blend some colors on a curve

I need to define a color gradient on a 3D curve, but I'm having some problems with this. Suppose we have a 3D curve defined as a parametric function of some real variable ...
10
votes
4answers
862 views

Coloring Points in a Plot, based on their position in the list

Before I describe the question, I'd like to say that I've seen the excellent answers posted here but have not managed to get them to work for my own data. I have a list of values that I would like to ...
16
votes
6answers
2k views

X-Y scatter plot with coloring dependent on Z value

I have an array of $(x,y,z)$ triples (array dimensions: N x 3), from which I can make a 2D scatterplot of $(x,y)$ values: ...
3
votes
3answers
268 views

How to paint part of DateListPlot?

My graph is about fires (burned area) over 12 years presented in one Date List Log Plot. Because most of fires are in summer (as expected) I would like to highlight that with different background ...
1
vote
1answer
140 views

Colors not showing in Graphics3D

The following code works, except that the colors aren't showing in the output. Wh? I probably made a trivial mistake, but I'm yet unable to find it. ...
1
vote
1answer
110 views

Draw only the top of the boundary of a function in Plot3d

So currently I have via combining 3 Plot3D's in a show. My question is how can I make it so that the ONLY portion of that border highlighted green, is the "curving portion" in the xy plane, rather ...
2
votes
1answer
227 views

Color coding based on 4D data within a building

I am trying to create something similar to a Heatmap within a building. Suppose I have a room with dimensions, {30,40,50} as length, width, and height respectively. I have a set of data that is of ...
-8
votes
2answers
478 views

Color plot markers using If statement

I am calculating eigenvlaues. Some are negative, some are positive. I define the index nn and mm (as well as np and mp) of each matrix element by some functions that assign positive, zero and negative ...
2
votes
3answers
593 views

Controlling Bar Color in BarChart precisely [duplicate]

I'm trying to control the color of individual bars in a BarChartwhen I pass a 2 dimensional list of data to plot. What I want to accomplish is that for each pair of ...
21
votes
9answers
2k views

How to convert a hex color string to RGBColor?

For example: "#FF8000". How could I convert it to RGBColor or Hue?
2
votes
1answer
421 views

How to colorize a rectangle with a given color function?

I want to set color to a rectangle (in fact a line) that lies on (0,0) and (1,0), and the color function is given by $u(x,t)=t(x-x^2), 0\leq t\leq1$. Since, this $u(x,t)$ act as temperature at the ...
3
votes
2answers
471 views

HSB -> HSL Converter

Starting from an image I would like to apply a custom filter to an image. I have thought and implemented this filter in HSL space and it goes like this : Boost the saturation of the pixels that ...
6
votes
1answer
186 views

Is it possible to render Graphics with more than “Byte” bitdepth?

I wonder is it possible to render Graphics in Mathematica with bitdepth higher than "Byte" which is the maximum bitdepth ...
12
votes
2answers
252 views

Why does DominantColors keep shuffling the order of the results?

This graphic is produced by running DominantColors (new in Mathematica 9) with different values, using the Lena image as the source: Each row is a list of the ...
4
votes
1answer
262 views

How can I colorize an imported model?

How can I colorize an imported model from for example 3ds max? I'm trying to find the way to colorize a 3D plot from an imported model with something like this: ...
28
votes
1answer
1k views

The correct way to linearize colorspace before resizing, blurring etc

There was an interesting discussion on MathGroups dealing with the fact that image-processing functions in Mathematica (and many other software, including Adobe Photoshop) work with RGB, Grayscale ...
8
votes
0answers
189 views

Break[] inside ColorFunction

f[x_?NumericQ]:= (Do[Break[],{i,1,2}];x) Plot[x,{x,0,1},ColorFunction->(ColorData["Rainbow"][f[#]]&)] Break::nofwd: No enclosing For, While, or Do found ...
1
vote
2answers
202 views

Filling for ListPolarPlot

I want to use Filling for ListPolarPlot in such a way that the points in the list are joined to the origin with a line colored ...
10
votes
2answers
3k views

Use different ColorFunction for each function plotted

When plotting two curves on one plot, you can specify different colors for each function: Plot[{Sin@x, Cos@x}, {x, 0, 4π}, PlotStyle -> {Red, Blue}] To ...
11
votes
2answers
254 views

can a ColorFunction have side effects?

Can anyone explain this (to me) odd behavior. If I run this code once (fresh kernel) it works as intended. ...
5
votes
3answers
367 views

How can I set different opacity values for the background of a ListPlot

In the following example: ListPlot[{1, 2, 3}, Background -> Green] how can I set the Opacity[] for the background such ...
6
votes
2answers
398 views

Problem achiving effect I want with ColorFunction

I want to create a plot showing historical annual maximum and minimum temperatures. I've figured out how to get 10 years of historical temperature data from Wolfram|Alpha. The plot below shows the ...
8
votes
3answers
218 views

Quickly display a color graphically

When manipulating colors, the output is shown as a textual expression like Hue[1/5], RGBColor[2/3, 1, 1/3], ...
1
vote
0answers
163 views

logticks in a colorbar

I have a question on using logarithmic ticks in a colorbar in Mathematica 8.0 . I use the package ColorbarPlot (...
3
votes
3answers
625 views

Comparing 2 Data Sets in a Single Plot

I have 2 data sets, data1 and data2 with large (in the thousands) amounts of data and I want to compare them in a plane. They ...
2
votes
3answers
592 views

Color mixing or blend

Color mixing seems not only one type. Here is RGB_color_model I wrote this one: ...
5
votes
3answers
648 views

ColorFunction and/or ColorScaling issue with ParametricPlot3D

My goal is to use ColorFunction to color a cylinder based on the $z$ value of a separate Plot3D. I'm not sure if I am making a ...
1
vote
1answer
540 views

Use selfdefined ColorFunction to encode z dimension with predefined limits

In my last question we defined a colorfunction cf. Now I want to use this ColorFunction for a number of different plots (...
4
votes
2answers
686 views

Define a color function based on color samples obtained from ColorBrewer

I am quite new to mathematica and I am searching for a way to create a smooth colormap based on the samples given by http://colorbrewer2.org/ . Is it possible to create a interpolated function from ...
6
votes
2answers
1k views

Gradient/ColorFunction in Disk with transparent background

My goal is to make an iOS-like enable/disable switch like this: I use a LocatorPane for the slider with so-called "jumps" to only make two settings possible: ...