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

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3
votes
2answers
78 views

Coloring specific elements of sets with a prime modified order in an array plot

I have a set of sets: {{1}, {0}, {1, 1}, {0}, {1, 0, 1}, {0}, {1, 1, 1, 1}, {0}, {1, 0, 0, 0, 1}} I’m seeking to apply a color rule to only every other set, starting from the first (from left to ...
0
votes
0answers
49 views

Coloring all elements in prime ordered sets amongst a set of sets [duplicate]

So I have a set of sets. I want only those sets whose order amongst the sets plus one is prime to be colored (all the same, anything but the standard black). Any ideas? ArrayPlot[{{1}, {1, 1}, {1, 1, ...
6
votes
1answer
267 views

The default ColorFunction of DensityPlot before v10?

The default ColorFunction of Plot, Plot3D before v10 is respectively mentioned here and ...
2
votes
2answers
106 views

How to convert a coloured image according to the colorfunction I defined?

I got an image from a website which follows the colorfunction "Rainbow", e.g. ...
1
vote
2answers
141 views

Adding colors to objects in a loop

I'm just starting out in Mathematica and still learning the ropes. I'm making a "necklace" which is a circle with squares around it. The following works: ...
3
votes
1answer
234 views

How can I combine two color schemes for plotting?

I want to use ListContourPlot to display all negative values using one colorscheme and all positive values using another color scheme. This question Define a color function using Piecewise gives some ...
3
votes
2answers
626 views

Color a Function by its Derivative

Mathematica's ColorFunction seems to struggle with coloring a function "y" by its derivative D[y,x]. This is a seemingly simple task, but Mathematica can't handle it. While I can certainly evaluate ...
1
vote
1answer
145 views

How to apply two kinds of Plot styles in single graph

My version is 9.0 I want to apply ColorData and Line Width styles at the same time, like the ColorTheme Function new in 10.0, but there is always errors. Codes under here: ...
1
vote
1answer
444 views

Plot multiple solutions of a system of differential equations with different values of constant c by using NDsolve

I am traying to solve system of differential equations with different values of constant c then plot the solution with different values of the constant c. where c= 2.2758, 2.04822, 1.82064, 1.59306, ...
2
votes
0answers
65 views

Background color does not display in InputField unless Appearance option is also specified

I get the same behavior for v10.1.0, v.10.0.2 and v.9 with OS X (10.9.5) : No background color is displayed in InputField if I just set properly the option. For ...
3
votes
0answers
101 views

How can I transfer colors from first image into second image? [duplicate]

How can I transfer colors from first image into second image, where every object from the first image should take the same object's color from first image. This images are only an example. this is ...
3
votes
4answers
202 views

ReplaceImageValue and ReplacePixelValue extremely slow

I have a grey scale image: and I am doing the following: bin = Binarize[image, 0.18] ...
5
votes
2answers
163 views

BarLegend using Function that uses Blend

Bug introduced in 10.0 and fixed in 10.1 I'm sorry if this is a duplicate, but I don't even know how to look for it. I had this line of code that worked on a Notebook I wrote on Mathematica 9.0: ...
3
votes
1answer
202 views

How can I pick a color from a ColorMap and colorize selected image pixels with this color

I have a binarized image and would like to set pixel values which are 1 to a certain (any) color picked from ColorData["TemperatureMap"] and 0 to another color of TemperatureMap. How can I do that? ...
15
votes
2answers
655 views

Modify existing color scheme

I am using the "TemperatureMap" color scheme for image processing. How can I set the lowest color value to Black? Generally ...
1
vote
2answers
245 views

Colorizing thresholded images with different colors

I am switching from IDL (from exelis) to Mathematica and want to do the following: thersholding a image (all values above a certain threshold are set 1, the rest is 0 ) colorizing the thresholded ...
2
votes
2answers
154 views

ListPlot a bunch of points that changes colour

I have a list of points: r = Range[-Pi/2, Pi/2, Pi/8]; angles = (c = Tuples[r, 2]) and a list of numbers which will determine the colour of the points above: ...
10
votes
3answers
404 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 ...
2
votes
1answer
95 views

Inconsistent behavior in ColorFunctionScaling of BarLegend in v10.0.1

I find the ColorFunction in BarLegend behaves very weirdly: Force rescaling from 0 to 1 For example: ...
3
votes
1answer
194 views

RegionPlot with ColorFunction gives ugly frame labels

I was working on a simple 2D region plot: ...
1
vote
1answer
164 views

Plot multiple solutions [duplicate]

I want to plot multiple solutions of an equation, so that one can differ them in the plot. The given equation is e.g. ...
0
votes
1answer
102 views

ColorFunction that depends on angle of line

I have a ListLinePlot, and I want the ColorFunction to vary as the angle, so that the color of the whole line depends on its angle from the x-axis. Here is a MWE of what I am doing: ...
2
votes
2answers
169 views

Default color for Filling in Mathematica 9

The default color scheme for plots in my Mathematica version is ColorData[1]. What about for the Filling option?
3
votes
1answer
486 views

Want a different color for each curve displayed with Show

I want a different color for each curve that I am displaying with Show. The functions are: custom1 custom2 custom3 custom4 custom5, and I am using the following ...
0
votes
1answer
77 views

Preventing Colors of Graphics from Blending

I am displaying multiple Disks that overlap and many of the Disks are different colors. Currently, the regions in which the Disks overlap are a color that is a mixture of the two Disks. I would like ...
3
votes
3answers
306 views

How to shade a plotted region in specific direction?

I am using RegionPlot to plot a linear program maximize 30x1+25x2 with the constraints ...
8
votes
3answers
443 views

Changing the atom color for plotting xyz-files

Mathematica takes the standard color code for atoms when plotting an *.xyz file, but I want to customize the color for the specific atoms. I really become desperate as I did not get it so far. ...
7
votes
1answer
107 views

How to replicate v9's color conversion to LAB under v10

Mathematica 10(.0.0) appears to use a different flavor of the LAB color space, but I would like to emulate the same behavior observed in version 9(.0.0). v9 ...
41
votes
4answers
2k views

Is there an easy way to use Matteo Niccoli's perceptual color maps for 2D plots in Mathematica?

I have been using the ubiquitous Jet color palette for 2D plots for some time now, and don't really care for it. Then I came across the series of blog posts, The rainbow is dead...long live the ...
5
votes
1answer
334 views

How can I create an interactive ColorFunction using Manipulate?

I am trying to specify my own colors and scaling for the ColorFunction in ListDensityPlot. I have several lists of 2D values ...
5
votes
2answers
678 views

Set the same color scale across multiple ListContourPlots?

This is probably straightforward - but how would I set the same color scale across multiple ListContourPlots? if I have values from 10 to 25 on one ListContourPlot and values from 40 to 100 on ...
1
vote
1answer
335 views

Filling between ParametricPlot and Plot

There are some similar questions: (1) (2) have been ask, but I think this is a different one. If we have a ParametricPlot and a ...
0
votes
2answers
302 views

Change the colour scheme in DensityPlots to make the zero white

We are trying to plot a density plot using the TemperetarueMap colour scheme. However, we don't seem to be able to make the white colour correspond to the value zero of the function we are plotting. ...
4
votes
2answers
524 views

Colorize Grayscale Image

I have a grayscale image that contains two objects. The grayscale pixel values can be divided into three intervals where two of them represent objects and the third represents the background. The ...
3
votes
1answer
168 views

Draw function with different colors associated to a parameter

I want to generate a plot similar to this one, which allows for different colors when given different parameters : (This is the Moreau-Yosida regularization of the absolute value) the Moreau-Yosida ...
3
votes
1answer
294 views

Recognizing Matching Colors in a Game Grid from a Camera Image

I am relatively new to Mathematica, having taken my first serious dive into it this week. As a fun project to teach myself some of the basics, I've come up with a goal of optimally solving a game ...
4
votes
1answer
124 views

Can't Get BarChart to use ColorFunction

I'm trying to get a BarChart to colour negative valued bars red and positive valued bars green but I'm having a time trying to do it. My latest attempt is: ...
3
votes
3answers
345 views

Coloring random points in an annulus

I have found the following random generator to generate points in an annulus in stackoverflow on stackoverflow ...
1
vote
1answer
840 views

Explanation for coloring of variables by code editor?

I was working on some homework just now, and I realized that some of my variables have different colors, and I am not sure why. In the example below f is black, ...
1
vote
2answers
67 views

Is there a way to logically test an optional color input inside a module? [duplicate]

Suppose I create a Module that is expected to return a graphic that I will later use in a plotting procedure (e.g., with ...
2
votes
2answers
209 views

Individual ColorFunction with RGBColor [duplicate]

I want to create a custom ColorFunction using RGBColor for my DensityPlot. A nice example is ...
5
votes
1answer
283 views

Are there more pre-existing ColorFunction options?

Such as "DarkRainbow", "Rainbow", "BlueGreenYellow", and ...
6
votes
2answers
499 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 ...
13
votes
1answer
383 views

How to do color-fill in images in Mathematica?

Color fill, the ability to apply a desired color to an enclosed area, is one of the basic functions provided by most graphic applications. Is there a similar ...
2
votes
2answers
147 views

StreamColorFunction ignored when setting to the RGB color

Recently I needed to color streamlines with exact color (e.g. RGBColor[0.1,0.478,0.5]). The help (http://reference.wolfram.com/language/ref/StreamColorFunction.html) suggests, that this can be ...
4
votes
2answers
386 views

Set the scale in ColorFunction [duplicate]

The following plot (A) ListLinePlot[{0,1,2,3},ColorFunction->"TemperatureMap"] goes from blue to read. The following plot (B) ...
1
vote
1answer
184 views

Missing arrow tips and colors

My main problem is: I plotted a curve here, but the tip of some arrows are missing. Why does this happen, and how can I fix this? Not the main problem: Also, I once tried to make the arrows with ...
19
votes
1answer
1k views

Is it possible to insert new colour schemes into ColorData?

Because of the standards in my field, for many plots I need to use (or at least end up using) rather narrowly defined colour schemes, and in particular the Matlab "Jet" scheme, which is well described ...
20
votes
3answers
3k views

Convert spectral distribution to RGB color

Presume I have a spectrum as a function of wavelength (an example being the blackbody spectrum): I want to convert that to a single RGB color to display on-screen, i.e. the "color" of that object ...