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

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12
votes
1answer
638 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 ...
11
votes
4answers
4k views

How to change default notebook background color?

How does one change the default notebook background color?
11
votes
6answers
581 views

Overlapping Red and Green ArrayPlots to show yellow intersections

Let's say I have two ArrayPlot[]s. One is in redscale and the other is in greenscale, such that the lowest value is white and the highest value is pure red or ...
11
votes
3answers
481 views

How to speed up Colorize

I have a list of about 500 images similar to the following: A = Import["http://i.stack.imgur.com/1bV4O.png"] ...
11
votes
2answers
489 views

How can I prevent ColorFunction from disabling antialiasing in graphics?

When I use ColorFunction, the appearance of my plots is ruined, changing from this which has the normal smooth lines and antialiased fonts, to this in which ...
11
votes
1answer
248 views

What is the default ColorFunction for Image3D?

What is the default ColorFunction for Image3D? I find it a bit confusing that the most intense colour is not shown where the ...
11
votes
2answers
935 views

How to vary color of fill between listplots based on y-distance between them

I have two lists with the same x-values but different y-values. I have used ListPlot to plot and fill the space (line) between them; however, I would like the color ...
11
votes
2answers
265 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. ...
10
votes
4answers
1k 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 ...
10
votes
4answers
1k views

Height-dependent filling color in 3D Data Plots

I would like to have the filling of my ListPlot3D display the same color than the one applied to the data. This question makes sense only in the case of conditional coloring of data (according to ...
10
votes
3answers
1k views

Which ColorFunction should I use to get such a gradient of blue-cyan-green-yellow-orange-red?

I want to get the effect in the above Figure. Here is my code: ...
10
votes
2answers
2k views

problem with coloring spherical harmonics

I want to color a spherical harmonics. So I write as follows. ...
10
votes
5answers
730 views

Randomly assigning color to Graphics3D objects?

I have a set of Graphics3D primitives (here, spheres) which I would like to assign either: One of a subset of colors, e.g. {Green, Red} A random color over some RGB interval Writing something ...
10
votes
4answers
4k views

How to convert rgb to YCbCr?

I looked at ColorConvert, but haven't found a relevant option. Is there a built-in function do this?
10
votes
2answers
4k 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 ...
10
votes
2answers
1k views

Coloring each face of a Cuboid with a different color

Is there a way to color each face of a Cuboid with a different color? I looked in the help but couldn't find anything. I found this Coloring the faces of a 3D ...
10
votes
1answer
483 views

How to find a specific color in one picture?

In a picture, there are many different colors. How can I just want to find the position of one color. In the following picture, if I would like to find the coordinates of the position of blue, how can ...
10
votes
2answers
1k views

ColorFunction in Histogram[]

Let's say I have a Histogram: Histogram[RandomVariate[NormalDistribution[10, 2], 500]] and I want the bars positioned to ...
9
votes
4answers
641 views

Color change of area under a curve

I am trying to set a graph to show the value of the equity of an investment based on whether the portfolio is invested or in cash. I tried using the ColorFunction, ...
9
votes
3answers
229 views

Match colors to plot themes

How do I get the colors to match the plot theme when I use a PlotLegend that is separate to the plots? I have had a look at How to access new colour schemes in ...
9
votes
1answer
230 views

Error Using Sow in DensityHistogram with ColorFunction

To find the color values used in a plot, I was using Sow as shown here: ...
9
votes
1answer
167 views

Mathematica's “POV” export format ignores ColorFunction

I was playing with xslittlegrass's Pov-Ray package and more generally with the POV-conversion function ExportString[#, "POV"] &, and noticed that ...
9
votes
2answers
1k 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 ...
9
votes
0answers
208 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 ...
8
votes
4answers
3k views

Coloring Points in a List Plot [duplicate]

Possible Duplicate: ListPlot with each point a different color and a legend bar I want to color the points in a list plot using a function of the (x,y) values. I tried this (example with ...
8
votes
3answers
222 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], ...
8
votes
3answers
983 views

256 Shades of Grey

I noticed that the following line, Image[Table[x, {y, 1, 250}, {x, 30/256, 40/256, 0.02/256}], Magnification -> 1] results in the following image: In the ...
8
votes
3answers
1k views

How to create an inverse pole figure color map

To interpret electron backscatter diffraction (EBSD) results, inverse pole figures are used. A three dimensional space of directions ([100], [110] and [111] for those who know about crystallography) ...
8
votes
1answer
582 views

Discrete coloring in Plots

I would like to have a plot that is filled to the axis with Green if the y value is greater than 10, and ...
8
votes
1answer
134 views

Highlight selected points in a plot

I need to change color to selected points dynamically in my plot. ...
8
votes
1answer
401 views

Way to find color at a point in a Graphics?

I need to figure out a way to find out the RGB color value at a certain coordinate in a Graphics object. The Graphics object I am dealing with is continually Dynamically updated, so it is made of ...
8
votes
0answers
111 views

Is Mathematica 10 color managed?

With ColorProfileData[] Mathematica 10 can handle device-dependent color spaces. However, images with embedded color profiles, e.g. sRGB, are rendered and displayed ...
7
votes
4answers
2k views

Determining the RGB values of the default plot color

In Mathematica 7, the default plot color is a purple-like color (although I think it is not Purple). Is it possible to use Mathematica to determine the RGB color ...
7
votes
2answers
180 views

Why does StreamColorFunctionScaling refuse to turn off?

Consider this simple streamline plot: StreamPlot[{-y/10, x/10}, {x, -1, 1}, {y, -1, 1}, StreamColorFunction -> Function[{x, y, u, v}, Hue[v]]] The ...
7
votes
3answers
321 views

Different colors for nodes in tree plot

I have some list of numbers which I am plotting using TreePlot. This is the code: ...
7
votes
1answer
469 views

Color linear interpolation of ParametricPlot3D

I am looking for any ideas about how to colorize an ellipsoid with a custom gradient style or by a Blend function. I would like to colorize ellipsoid as follows: ...
7
votes
1answer
3k views

Fixed color scale in multiple density plots

I think there should be a simple solution for my current problem, but neither StackOverflow (or the help of Mathematica) or Google have it. I have to plot multiple density plots with a color ...
7
votes
2answers
326 views

Union of plotted regions as sum of colors

I wish to plot 2 functions $f$ and $g$ so that the region bounded by $f$ has color $c_f$, the region bounded by $g$ has color $c_g$, and the region bounded by both has color $c_f+c_g$. E.g. $c_f$ is ...
6
votes
6answers
2k views

How do I fill in a circle made by ParametricPlot with one solid color?

I have a very simple question but I am new with Mathematica. I made a circle on a parametric plot and I made the line black. I want to make the inside of the circle on the parametric plot red. So the ...
6
votes
3answers
800 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): ...
6
votes
3answers
399 views

Fill circle layers with colors according to read values from a plotted curve

I want to read (temperature) values from plotted (cooling) curves and visualize them in layered circles. I have an example made manually for clarification: 3 plotted curves, at certain time steps ...
6
votes
2answers
450 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 ...
6
votes
4answers
1k views

Discrete ColorData scheme with n colors?

I am trying to visualize a problem I am working on. For this, I need $n$ distinct colors which are preferably easy to distinguish. (Obviously, the higher the $n$ is, the harder it is to distinguish ...
6
votes
3answers
733 views

Changing background colour of a Manipulate element

Please consider the following: Manipulate[Plot[Sin[x (1 + a x)], {x, 0, 6}], {a, 0, 2}]; Now, I would like to change the background colour to yellow. I tried ...
6
votes
2answers
612 views

Adjusting Density Plot Color Function for Diffraction Simulation

I'm trying to simulate Fraunhofer diffraction by a single slit using DensityPlot I run the code: ...
6
votes
2answers
499 views

Combining three R, G, B matrices into a single matrix of 3-tuples?

Working with Mathematica 8 on OSX here. I have three $1024 \times 1024$ matrices representing the counts from consecutive exposures onto a CCD with $R$, $G$, and $B$ filters on it, and am looking to ...
6
votes
2answers
175 views

Color lines by angle

I would like to color some lines according to the following color function: ...
6
votes
2answers
362 views

How to use Mathematica to turn a picture into low poly style?

I want to use Mathematica to turn a picture into low poly style. That is, to make the following conversion: Bill to Bill low poly(Using Image Triangulator App). I think the biggest difficulty is how ...
6
votes
2answers
270 views

Formatting text through pattern matching

I am trying to format some text based on some patterns. ...
6
votes
2answers
2k 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: ...