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

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0
votes
2answers
23 views

How to use a particular color in function of value of f[label] in a PieChart?

How to use the value of a funtion[label] to assign color to a piece of the pie? (edited after answer of kguler ) My dude is how to control the colors in ranges of a function of [labels] In this way ...
5
votes
2answers
97 views

Different colors for nodes in tree plot

I have some list of numbers which I am plotting using TreePlot. This is the code: ...
4
votes
2answers
189 views

Formatting text through pattern matching

I am trying to format some text based on some patterns. ...
8
votes
1answer
459 views

Logarithmic scale in a DensityPlot and its legend

I was recently faced with the task of creating a DensityPlot with a logarithmic colour scale, and with providing it with an appropriate legend. Since I could not find any resources to this effect on ...
3
votes
3answers
159 views

Colorize a 3D distribution of points according to density

Suppose we have some random 3D distribution of points. I'll use the spherical ball defined below as an example and a starting point for the discussion here : ...
0
votes
0answers
14 views

different densityplots with same color range [duplicate]

for example, lets say there're two functions f1 and f2. 0<=f1<=1, 2<=f2<=3 but the two differs only by constants. (e.g. f1[x_,y_]:=(Sin[x]Sin[y])^2, f2[x_,y_]:=(Sin[x]Sin[y])^2+2) what i ...
3
votes
1answer
91 views

How can I change label colors in a colored chart?

I am trying to make a chart with labels, but I would like for the labels on the chart to be white for purposes of visibility. I am aware of the ...
0
votes
1answer
130 views

Calculate the centroid of a group of pixels with the same PixelValuePositions

My question is about how to recognise objects in a image. I would like to recognise objects of the same color. Then I want to calculate the centroid of these objects. I want to apply this calculation ...
1
vote
2answers
145 views

Multiple curves plotted with different colours [duplicate]

I am trying to use ColorFunction for 2 functions on the same plot. I only want the cubic equation to change colour. ...
10
votes
5answers
356 views

Default Chart Color Doesn't Match

I have looked through other posts to find out what the default plot color is, but when I use it, the color doesn't seem to match. Can anyone explain why I'm seeing different output? The reason I ask ...
3
votes
1answer
120 views

ContourPlot or DensityPlot ColorFunction with x, y and z arguments

Is it possible to apply a color function to ContourPlot or DensityPlot that is function of x, y and z, and not simply of z? Example: ...
0
votes
2answers
66 views

Coloring selected elements of a list created with Table [duplicate]

I have a function that returns a list of 100+ elements, using Table[]. For simplification, let's assume that it's just ...
4
votes
2answers
90 views

Coloring the points in a ListPlot with the value of another function [duplicate]

I'm a relative beginner in Mathematica, but after reading the forums for a long time, I couldn't understand one thing: I want to plot a list h. Let's call it ...
2
votes
2answers
108 views

DensityPlot Increase Information

I am trying to make a density plot in Mathematica, however the distribution of the plot is not as visible as I would like. I plotted the same function in python and it contains a greater visible range ...
1
vote
1answer
232 views

Want more vibrant colors in plots

Is it possible to create plots that have vibrant colors like those I create in Python? For instance, take this thread function returning 0 where I used rainbow and here is the temperature gradient: ...
17
votes
2answers
477 views

Blend code for built-in ColorData schemes

Hi I want to get a blend similar to "SunsetColors". To make those slight modifications, I would like to know the precise blend of that color scheme. My try: ...
1
vote
0answers
35 views

How do I change a ColorFunction filling to be top-down as opposed to left-right? [duplicate]

I've been stuck on a seemingly simple Graphics issue for quite a while now... I am trying to make a temperature distribution Plot that will have a colorFunction filling to show red when at a higher ...
4
votes
2answers
161 views

Character display color

I'm looking to cause the front end to display individual characters in a specific color, just in general, as a default sort of thing. For instance, the character "1" would always display as a red 1, ...
0
votes
2answers
150 views

RGB numbers for pastel colordata [duplicate]

How can I get the rgb numbers for colors that show up in the colordata "pastel" so I can use them inside a regionplot? I am combining several regionplots and I would like each of the regionlots to be ...
8
votes
3answers
861 views
1
vote
1answer
85 views

Part::pspec error returned when using a ListLinePlot ColorFunction variable as list index

In ListLinePlot, I'm attempting to construct my own ColorFunction for coloring points differently based on a third dimension of data not plotted to a specific axis. However, ColorFunction only uses ...
5
votes
4answers
256 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 ...
1
vote
1answer
89 views

GraphPlot with black edges no rendering function

Is there any way to make the edges of a GraphPlot black without tediously writing out a long "EdgeRenderingFunction"? I guess you could ask the same kind of question about vertex labeling. For ...
9
votes
1answer
104 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 ...
2
votes
1answer
154 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 ...
7
votes
2answers
172 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 ...
4
votes
1answer
76 views

Odd colourization for FourierParameters. UI bug?

The Mathematica UI colourizes the FourierParameters in the following ...
2
votes
2answers
141 views

Colors for multiple piecewise functions

I have the following $3$ piecewise functions, and I would like that f1, f2 and f3 have $3$ ...
6
votes
1answer
265 views

My black text isn't black after exporting to PDF

Consider any standard plot, with true CMYK black text: ...
1
vote
1answer
95 views

How to color ParametricPlot3D based on the parameter?

I have a set of ODEs I am solving, and then plotting (several) trajectories of in ParametricPlot3D. I want to have a color of each plot reflect the time (i.e. the Parameter) at that point. I tried ...
2
votes
1answer
100 views

Buttons Which Change Color, Each Time Pressed [closed]

I need to have 100 buttons, which their color is defined by the parity of number of times they are pressed: If they're pressed an even number of times their color is blue, and otherwise red. I don't ...
6
votes
3answers
259 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 ...
9
votes
1answer
264 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 ...
3
votes
1answer
113 views

Frontend coloring of Table[x, {x, 0, x}]

I have a small question about how the Mathematica frontend colours in the variables that appear in (wrongly written) iterators. More specifically, I'm intrigued by the colour of the third ...
2
votes
1answer
148 views

How can I mix colors?

As far as I know if you combine Blue and Green the result is Cyan (using additive mixing). ...
1
vote
1answer
120 views

Remove overlapping red and green color

How to remove overlapping red and green color regions, leaving only red ones?
0
votes
0answers
138 views

Invert Colors Stylesheet White on Black

There have been a couple studies done that showed that white text on a black background increase recall of data. Although this is certainly debatable how might I invert the colors of Notebook font ...
1
vote
1answer
95 views

Gradually coloring edges in terms of their vertices colors

In order to color Edges in a Graph after applying a function such as VertexDegree I did the ...
0
votes
1answer
86 views

Adding labels on ArrayPlot and coloring rows

I need to add lables on the right from ArrayPlot for each row and color the black square of each row depending on values from two list. Color list has a numbers in some range and should be mapped ...
6
votes
2answers
245 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: ...
1
vote
2answers
233 views

Coloring vertices using GraphPlot

I have the following problem: I used GraphPlot to plot my adjacency matrix. I divided my nodes in three groups: ...
19
votes
5answers
385 views

Compiling ColorFunction for faster complex phase-amplitude plots

I have gotten into the habit of plotting complex-valued functions on a plane using a color-function along the lines of ...
4
votes
2answers
152 views

CMYK colours changing

If I draw a coloured diagram like Graphics[{CMYKColor[0, 0.83, 1, 0], Rectangle[{0, 0}], CMYKColor[1, 0, 0, 0], Rectangle[{0.5, 0.5}]}] and select the red ...
0
votes
0answers
33 views

Scaling at density plot [duplicate]

I have two data set: One's range is between 0 and 0.5 and another's range is between -0.2 to 0.3. I want to draw two density plots with common scale: from -0.5 to 0.5. How can I fix the scale? ...
11
votes
2answers
266 views

Color Histogram3D by Bin Location

I am using a Histogram3D plot to view the correlation of the R & G of an RGB image. Naturally, I want the bins to have a color corresponding to their $x$, $y$ ...
1
vote
2answers
120 views

Show Simplified Directives [closed]

Is there a way to force Mathematica to convert an already rendered Graphic to the simplified Directive form of that Graphic. Background: I am currently editing Graphics using Drawing Tools and then ...
12
votes
3answers
385 views

How can I convert colors to grayscale?

I want to change the above colored plot into a grayscale plot. I have tried this: CCGray[pic_?ImageQ] := Module[{}, ColorConvert[pic, "GrayScale"]]; but it ...
17
votes
2answers
279 views

Pattern that matches colors

Suppose I'm writing a function that takes a color as a parameter; for example: drawShape[color_] := Graphics[{Style[Disk[], color]}]; But if the caller inputs an ...
6
votes
6answers
1k 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 ...