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

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20
votes
3answers
1k 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 ...
29
votes
3answers
668 views

A better “VisibleSpectrum” function?

Since ColorData["VisibleSpectrum"] is wrong, I would like to have a more accurate function to use. Can this information be extracted from Mathematica itself?
18
votes
3answers
602 views

How to plot an emission spectrum?

If I have a list of data with various wavelengths in nanometers, how would I plot them on a graph so it looks like this: So far I have managed to plot a spectrum in ...
15
votes
1answer
409 views

Is ColorDistance symmetric?

Is the function ColorDistance symmetric, i.e. is it always true that ColorDistance[a,b] == ColorDistance[b,a], as use of the ...
0
votes
0answers
28 views

Color Gradient on points using ErrorListPlot

I am having some difficulties getting a value-dependent color gradient on points with ErrorListPlot. I am starting with a list looking like ...
31
votes
4answers
1k 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 ...
3
votes
2answers
72 views

Permanently Changing Default Color

I can't find this answer elsewhere, but is there a way to permanently change the default plot color? In 10 the default plots are orangish and in 9 they were a purple-bluish color. Is there a way to ...
3
votes
2answers
103 views

Matrix Plot: How to Apply color function to only a region of the plot

I want to make a matrix plot where a color function is applied to a region of a matrix. Those matrix elements which were not in the region specified should not have any color associated with them, and ...
2
votes
1answer
70 views

Duotone plots with cyan and black

What's the typical way to make Mathematica plots use purely cyan and black? Maybe there's a fairly standard method, since publishers often require this? It also seems like some plot types take ...
2
votes
1answer
222 views

Visualization of Gaussian Curvature

I need to visualize Gaussian Curvature of a parametric surface. There is a solution here: How to visualize the Gaussian curvature of a 3D surface? However, I'm not sure its working because when I ...
0
votes
0answers
34 views

Force the Automatic BarLegend in a ContourPlot to show from -0.65 to 0

I am using ContourPlot to display a function. I have forced the ColorFunction to map between -0.65 to 0 however the automatic BarLegend is still scaled dynamically and I also want to force the ...
2
votes
0answers
108 views

puzzled with ColorData

At first let me thank, from this point as well, those that they replied to my previous queries. From a reply I got, I obtained finally the desired graph. ...
5
votes
5answers
304 views

Plot all curves in a table with a single color

I want all of my solutions in a table to be the same color. My attempt: ...
10
votes
5answers
718 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 ...
9
votes
4answers
637 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, ...
14
votes
4answers
2k views

How can I change the color of the bar in a ProgressIndicator?

I want to change the color of the progress bar in a ProgressIndicator. I want the progress bar to be red instead of green. For this purpose I wrote the following ...
1
vote
1answer
66 views

Cannot shade 3D vector in different color

I need to color each vector into different colors... but this formula just doesn't work: ...
2
votes
1answer
61 views

Show scatter plot of change in image saturation

Let's say I have two images. One is the original and the other is after some photo-manipulation has been applied to it. I want to show the effect on the color saturation using a scatter chart. ...
46
votes
3answers
2k views

Python-style plots in Mathematica

I love making plots in Mathematica. And I love to spend a lot of time making high-quality plots that maximize readability and aesthetics. For most cases, Mathematica can make very beautiful images, ...
4
votes
1answer
68 views

BarChart3D: varying individual bar color

I've been working with a chart like so: ...
14
votes
3answers
855 views

Change the inner color of markers

I would like to have a marker with white as its inner color, to be able to make this kind of graph: If I use PlotMarkers -> Style["\[FilledSquare]", White], ...
13
votes
1answer
300 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 ...
3
votes
1answer
204 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 ...
1
vote
1answer
222 views

Subset of edges with a different color

I want to color a subset of the edges of my graph with a different color. My graph currently has a large number of edges, so the following is just a toy example ...
3
votes
1answer
467 views

Create a colorbar plot legend

I have the following list of parametric equations lst = {10*Cos[u]*Sin[v], 3*Sin[u]*Sin[v], 2*Cos[v]}; I define the following color function ...
4
votes
4answers
804 views

How to change color dynamically?

I am new to Mathematica and want to change the FillingStyle Dynamically in this Plot. I want ...
6
votes
0answers
111 views

ShowSelection color

The color of a selection is controlled by the operating system. E.g., enter the following code in separate cells. ...
22
votes
5answers
1k views

Morphing Graphics, color and location

I would like to make a small animation : 1-We start with a random distribution of gray points : ...
6
votes
1answer
68 views

Graph: Coloring Edges individually

CODE: Graph[{Style[0 -> 1, Red], Style[0 -> 1, {Blue, Dashed}]}] This mathematica code will make both lines solid Red, since they belong to the same two ...
14
votes
2answers
172 views

Color Blend in BezierCurve

How can I color a BezierCurve from Red into Green just as ...
3
votes
1answer
232 views

Filling using colors rendered corresponding to the difference between two curves

Suppose there are two curves f1[x] and f2[x], and we want to fill the area between them using colors corresponding to the vaule ...
17
votes
3answers
2k views

Mathematica color schemes for the colorblind

Does Mathematica have a graphics option that makes plots intelligible for people with colorblindness?
4
votes
1answer
107 views

Are there more pre-existing ColorFunction options?

Such as "DarkRainbow", "Rainbow", "BlueGreenYellow", and ...
2
votes
2answers
68 views

Export Text with Colors

Is there a way of using Export[] method to take a text with colors (using Style) and then export to file, such that when I open ...
14
votes
3answers
1k views

On coloring the faces of a surface differently with parameter-dependent colors

Old versions of Mathematica ($VersionNumber < 6) supported a particular syntax of ParametricPlot3D[] that allowed for ...
2
votes
2answers
170 views

Gradient in a plotstyle

I'm trying to replicate the figure below. Now a nice first approach to do this is by using Mathematica, by making some kind of contourplot with circles and just add a gradient to the contourstyle. Now ...
14
votes
1answer
190 views

Major slowdown when using a ColorFunction with more than one named scheme

Problem remains in 10.1 Earlier Kuba noted a major slowdown with code Simon Woods posted. Here is a simplified example. First a color function using two different named gradient schemes: ...
1
vote
0answers
39 views

ImageData to Image to ImageData, in LABColor [closed]

Given an $m\times n$ image $G1$, I'm trying to: Extract the $mn$ pixels of $G1$ as an $n\times m$ matrix $M1$ of triples, where each triple represents the color in LAB space. Turn $M1$ into an ...
2
votes
1answer
108 views

Coloring points via “TemperatureMap” [duplicate]

I have a collection of 3D points, and each is associated with a real number in [0,1]. A typical element looks like {{x,y,z},c} where ...
0
votes
1answer
46 views

Adding circles on a function plot depending on the slope

I have the following function and I use manipulate to change the plot of the function and the integral respectively. In nonlinear dynamics one plots a little circle/point on the intersections of the ...
10
votes
3answers
1k views
-2
votes
2answers
66 views

Vary the color of a 2D scatter plot [duplicate]

This is what I want. I want to change the colors as I progress through a list.
14
votes
4answers
1k views

How to change element color in Periodic Table?

The command ColorData["Atoms", "Panel"] generates a periodic table. As I don't want to reinvent the wheel, I asked myself how to change the color of each cell ...
4
votes
1answer
132 views

The default ColorFunction of DensityPlot before v10?

The default ColorFunction of Plot, Plot3D before v10 is respectively mentioned here and ...
8
votes
1answer
127 views

Highlight selected points in a plot

I need to change color to selected points dynamically in my plot. ...
4
votes
2answers
161 views

Overlapping Spheres with a Shared Blank Region

We have two similar overlapped spheres in a way that the distance between their centers is smaller than the sum of their radius (2R>a). As I show here: Also, we want to draw them in a such way that ...
12
votes
3answers
252 views

Is there any faster implementation of DominantColors?

The function DominantColors is a simple function but runs incredibly slow when the number n of dominant colors to find is large - it is currently the biggest bottleneck in my code: ...
4
votes
2answers
121 views

Gridding in a Nested Matrix

We have a nested matrix as: nested={{he, {{e, f, g, h}, {s, 0, q, i}, {s, 0, q, j}}}, {ho, {{e, f, g, h}, {0, u, t, i}, {u, t, 0, j}}}} and with the line ...