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

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3
votes
2answers
223 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 ...
3
votes
1answer
86 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 ...
5
votes
5answers
379 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: ...
11
votes
5answers
872 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
669 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
3k 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
87 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
89 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. ...
52
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, ...
5
votes
1answer
127 views

BarChart3D: varying individual bar color

I've been working with a chart like so: ...
15
votes
3answers
1k 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
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 ...
3
votes
1answer
483 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 ...
2
votes
1answer
310 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
732 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
1k 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
129 views

ShowSelection color [closed]

The color of a selection is controlled by the operating system. E.g., enter the following code in separate cells. ...
23
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
90 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
185 views

Color Blend in BezierCurve

How can I color a BezierCurve from Red into Green just as ...
3
votes
1answer
284 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 ...
19
votes
3answers
2k views

Mathematica color schemes for the colorblind

Does Mathematica have a graphics option that makes plots intelligible for people with colorblindness?
5
votes
1answer
279 views

Are there more pre-existing ColorFunction options?

Such as "DarkRainbow", "Rainbow", "BlueGreenYellow", and ...
2
votes
2answers
86 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 ...
2
votes
2answers
246 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 ...
15
votes
1answer
210 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: ...
2
votes
0answers
94 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
146 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
72 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
-3
votes
2answers
164 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.
15
votes
4answers
2k 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 ...
6
votes
1answer
266 views

The default ColorFunction of DensityPlot before v10?

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

Highlight selected points in a plot

I need to change color to selected points dynamically in my plot. ...
4
votes
2answers
239 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
299 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
154 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 ...
1
vote
1answer
112 views

DensityPlot colours symmetric around zero

I have some function of two variables (which happens to be the error in some approximation I'm interested in). I'd like to get a density plot of the function, such that in regions when the function is ...
1
vote
2answers
414 views

Controlling colors of points in ListPlot

I have a collection of points I want to plot using ListPlot[]. I would like each individual point to be a certain color depending on a key value that is based on a list separate from the points. As a ...
2
votes
1answer
57 views

Change ColorScheme of DistributionChart

The "ColorScheme"of a DistributionChart can be changed using the ChartElementFunction like in the following example: ...
3
votes
1answer
314 views

How can I create a colour image using raw black and white data? (FITS data cube)

I have a data cube containing pictures of a galaxy across a thousand wavelengths. I want to take the data for the image slides in the red and blue parts of the spectrum, and have them represented in ...
2
votes
0answers
44 views

Calculating number of discernible colors in CIE La*b* space

How can Lab space be easily splitted into unity cubes and determined number of cubes that colours of certain image occupy?
0
votes
2answers
95 views

How to Fill ContourPlot

Given a contour plot such as function = Cos[c] + Cos[a] pltc = ContourPlot[function == 1/2, {a, 0, 4 Pi}, {c, 0, 4 Pi}]; How can I color the regions in which ...
2
votes
1answer
649 views

White regions in DensityPlot — is this a bug with ColorFunctionScaling?

Is this a bug with ColorFunctionScaling? When I try to supply my own ColorFunction Mathematica seems to partially ignore it, ...
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 ...
2
votes
2answers
157 views

Make a colored ListPlot

Basically I have a set of 3D points, such as {3,4,3} or {4,1,4}. Instead of plotting the points in a 3D space, I want to plot the x,y coordinates of the points on the 2D plane and use the z coordinate ...
0
votes
1answer
48 views

Strange output of ColorFunction

In v10.0.2, compare the following two outputs: Plot3D[x^2 + y^2, {x, -2, 2}, {y, -2, 2}, ColorFunction -> (Hue[Sqrt[#1^2 + #2^2]] &)] ...
0
votes
1answer
79 views

Coloring circles based on radius

I have a list of ellipses with x and centroid, orientation, and major diameter and minor diameter. I currently have them overlaid on an image in red but what I would like is to be able to colour them ...