Questions on the color models, schemes, named colors and color functions supported by Mathematica.
0
votes
1answer
47 views
1
vote
1answer
81 views
PlotStyle in ListPlot: change color scheme, manually choose color of first plot
Say i have this data:
data1 = Map[Cos, Range[0, 20]];
data2 = Map[Sin, Range[0, 20]];
And i want to plot data1 in gray and a ...
2
votes
2answers
83 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, ...
1
vote
1answer
60 views
1
vote
2answers
70 views
I want to change the outer background color of a manipulated plot
I downloaded some demonstrations' sources (for example) and I want to change their colors. I am only stuck with the white outer background that is around the plot's yellow background.
I would like to ...
0
votes
0answers
80 views
Frame and white background not working (all other colours are fine)
Though my question my be related to this one, it doesn't look like it can easily be solved in the same way, so I hope not to be double-posting.
I am trying to insert a framed number/text into a ...
3
votes
3answers
119 views
Plot sublists as different colors
I have one big list with many sublists inside. All sublists consist of three numbers. For example:
...
2
votes
1answer
73 views
Normalize the PlotLegends and z values for two DensityPlot
I'm trying to compare two DensityPlots:
...
13
votes
6answers
861 views
How to find major color in a picture?
I want to find the major color (the color which appears most often) in a picture and do some analysis later.
For example, if I have this picture:
What I want to do is find out that gray, red, ...
1
vote
0answers
38 views
Scaled ColorData Function [duplicate]
I have a four-dimensional array c, in which the first dimension represents time and the other three dimensions represent (x,y,z) ...
2
votes
2answers
102 views
ColorFunction based on data
I have a list of numbers, and I would like to plot them using ArrayPlot (which is easy, usually :)). I would like to be able to color the elements of the plot based on the average of the list: one ...
4
votes
1answer
174 views
Calculating pleasant colors for source code or web-design
I really like when the programs or editors I use have pleasant colors. Sometimes when there's nothing else to do or sometimes when there are very important, but incredibly boring things to do, I find ...
1
vote
2answers
106 views
How to blend some colors on a curve
I need to define a color gradient on a 3D curve, but I'm having some problems with this.
Suppose we have a 3D curve defined as a parametric function of some real variable ...
12
votes
3answers
175 views
Impose the color for one discrete value above a color predefined gradient
If I plot an array with option ColorFunction -> "Rainbow" :
...
5
votes
3answers
276 views
Parameters for the CIE XYZ Color Space in Mathematica
In Mathematica, producing a color based on its RGB parameters is easy; one can use (for example)
...
13
votes
6answers
406 views
X-Y scatter plot with coloring dependent on Z value
I have an array of $(x,y,z)$ triples (array dimensions: N x 3), from which I can make a 2D scatterplot of $(x,y)$ values:
...
2
votes
2answers
171 views
0
votes
0answers
68 views
10
votes
4answers
418 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 ...
2
votes
3answers
114 views
How to paint part of DateListPlot?
My graph is about fires (burned area) over 12 years presented in one Date List Log Plot. Because most of fires are in summer (as expected) I would like to highlight that with different background ...
1
vote
1answer
69 views
Colors not showing in Graphics3D
The following code works, except that the colors aren't showing in the output. Wh? I probably made a trivial mistake, but I'm yet unable to find it.
...
1
vote
1answer
82 views
Draw only the top of the boundary of a function in Plot3d
So currently I have
via combining 3 Plot3D's in a show. My question is how can I make it so that the ONLY portion of that border highlighted green, is the "curving portion" in the xy plane, rather ...
2
votes
1answer
161 views
Color coding based on 4D data within a building
I am trying to create something similar to a Heatmap within a building. Suppose I have a room with dimensions, {30,40,50} as length, width, and height respectively. I have a set of data that is of ...
-7
votes
2answers
194 views
Color plot markers using If statement
I am calculating eigenvlaues. Some are negative, some are positive. I define the index nn and mm (as well as np and mp) of each matrix element by some functions that assign positive, zero and negative ...
2
votes
3answers
148 views
Controlling Bar Color in BarChart precisely [duplicate]
I'm trying to control the color of individual bars in a BarChartwhen I pass a 2 dimensional list of data to plot. What I want to accomplish is that for each pair of ...
10
votes
2answers
140 views
How does one adjust ColorFunction quality independently of surface quality?
I have a function $f:\mathbb{C}\rightarrow\mathbb{C}$ which I would like to visualize by by plotting $|f|$ with Plot3D using $\operatorname{Arg}f$ as the ...
17
votes
9answers
727 views
How to convert a hex color string to RGBColor?
For example: "#FF8000".
How could I convert it to RGBColor or Hue?
1
vote
1answer
198 views
How to colorize a rectangle with a given color function?
I want to set color to a rectangle (in fact a line) that lies on (0,0) and (1,0), and the color function is given by $u(x,t)=t(x-x^2), 0\leq t\leq1$. Since, this $u(x,t)$ act as temperature at the ...
3
votes
2answers
177 views
HSB -> HSL Converter
Starting from an image I would like to apply a custom filter to an image.
I have thought and implemented this filter in HSL space and it goes like this :
Boost the saturation of the pixels that ...
5
votes
1answer
132 views
Is it possible to render Graphics with more than “Byte” bitdepth?
I wonder is it possible to render Graphics in Mathematica with bitdepth higher than "Byte" which is the maximum bitdepth ...
4
votes
1answer
156 views
How can I colorize an imported model?
How can I colorize an imported model from for example 3ds max?
I'm trying to find the way to colorize a 3D plot from an imported model with something like this:
...
4
votes
2answers
241 views
Plot3D with coloring based on phase value of f
I'm reading a sample chapter of Visual Complex Functions by E. Wegert. Near the bottom of this page, there is a link "Download Sample pages 1 (pdf, 2.4 MB)" which allows you to read Chapter 2 of the ...
12
votes
2answers
193 views
Why does DominantColors keep shuffling the order of the results?
This graphic is produced by running DominantColors (new in Mathematica 9) with different values, using the Lena image as the source:
Each row is a list of the ...
7
votes
2answers
597 views
problem with coloring spherical harmonics
I want to color a spherical harmonics. So I write as follows.
...
6
votes
0answers
115 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 ...
1
vote
2answers
132 views
Filling for ListPolarPlot
I want to use Filling for ListPolarPlot in such a way that the points in the list are joined to the origin with a line colored ...
2
votes
2answers
227 views
Spreading colors in ListContourPlot
I have a data file with triplets. The first two numbers indicate the x and y position, while the third one is the log10 value of a particular indicator. I want to create a 2D plot in which the ...
9
votes
2answers
500 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 ...
5
votes
3answers
182 views
How can I set different opacity values for the background of a ListPlot
In the following example:
ListPlot[{1, 2, 3}, Background -> Green]
how can I set the Opacity[] for the background such ...
23
votes
1answer
432 views
The correct way to linearize colorspace before resizing, blurring etc
There was an interesting discussion on MathGroups dealing with the fact that image-processing functions in Mathematica (and many other software, including Adobe Photoshop) work with RGB, Grayscale ...
6
votes
2answers
242 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 ...
1
vote
0answers
106 views
logticks in a colorbar
I have a question on using logarithmic ticks in a colorbar in Mathematica 8.0
. I use the package ColorbarPlot (...
12
votes
2answers
196 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 ...
8
votes
3answers
205 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], ...
3
votes
3answers
344 views
Comparing 2 Data Sets in a Single Plot
I have 2 data sets, data1 and data2 with large (in the thousands) amounts of data
and I want to compare them
in a plane. They ...
2
votes
3answers
318 views
Color mixing or blend
Color mixing seems not only one type.
Here is RGB_color_model
I wrote this one:
...
1
vote
1answer
144 views
Use selfdefined ColorFunction to encode z dimension with predefined limits
In my last question we defined a colorfunction cf. Now I want to use this ColorFunction for a number of different plots (...
3
votes
2answers
271 views
Define a color function based on color samples obtained from ColorBrewer
I am quite new to mathematica and I am searching for a way to create a smooth colormap based on the samples given by http://colorbrewer2.org/ .
Is it possible to create a interpolated function from ...
5
votes
3answers
273 views
ColorFunction and/or ColorScaling issue with ParametricPlot3D
My goal is to use ColorFunction to color a cylinder based on the $z$ value of a separate Plot3D. I'm not sure if I am making a ...
1
vote
1answer
122 views
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, ...
