Questions on the color models, schemes, named colors and color functions supported by Mathematica.
4
votes
1answer
535 views
Fixed color scale in multiple density plots
I think there should be a simple solution for my current problem, but neither StackOverflow (or the help of Mathematica) or Google have it.
I have to plot multiple density plots with a color ...
6
votes
4answers
329 views
Determining the RGB values of the default plot color
In Mathematica 7, the default plot color is a purple-like color (although I think it is not Purple). Is it possible to use Mathematica to determine the RGB color ...
8
votes
2answers
400 views
ColorFunction in Histogram[]
Let's say I have a Histogram:
Histogram[RandomVariate[NormalDistribution[10, 2], 500]]
and I want the bars positioned to ...
3
votes
2answers
177 views
Plotting two functions with dependent input function
I have defined a function:
myJ2[n_] := 1/n* Total[RandomVariate[NormalDistribution[0, 1], n]^2]
This is basically an approximation to the gaussian integral. I ...
10
votes
2answers
333 views
How to vary color of fill between listplots based on y-distance between them
I have two lists with the same x-values but different y-values. I have used ListPlot to plot and fill the space (line) between them; however, I would like the color ...
11
votes
6answers
372 views
Overlapping Red and Green ArrayPlots to show yellow intersections
Let's say I have two ArrayPlot[]s. One is in redscale and the other is in greenscale, such that the lowest value is white and the highest value is pure red or ...
20
votes
6answers
695 views
ColorData[“VisibleSpectrum”] is wrong?
I am trying to visualize the visible spectrum using the built-in ColorData["VisibleSpectrum"] function which "colors based on light wavelength in nanometers". But I ...
11
votes
2answers
212 views
can a ColorFunction have side effects?
Can anyone explain this (to me) odd behavior. If I run this code once (fresh kernel) it works as intended.
...
5
votes
5answers
602 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 ...
21
votes
4answers
1k views
Density plot on the surface of sphere
I would like to make density plots of a list of (size 2 or 3) spherical harmonics on the surface of a sphere. I'd like to plot it so that each element of that list is using a different color (red ...
6
votes
3answers
254 views
Changing background colour of a Manipulate element
Please consider the following:
Manipulate[Plot[Sin[x (1 + a x)], {x, 0, 6}], {a, 0, 2}];
Now, I would like to change the background colour to yellow. I tried ...
2
votes
1answer
176 views
Creating multicolored meshed plots (connected scatter plots) using ListPlot
I would like to make colored scatter plots where the dots are connected by lines. I have tried the following, using Joined->True to connect the dots and ...
0
votes
1answer
163 views
how to dynamically change color of setterbar
I have a SetterBar with 3 values. I want that when I hover the cursor on any of the SetterBar value,it changes its color and ...
6
votes
3answers
352 views
Adapt ColorFunction in Array Plot
The problem I'm facing is how to adapt ColorFunction so that it ranges from green (low values) to red (high values):
...
5
votes
2answers
235 views
Monochrome PNG (and GIF) Export
Is there a way to Export expressions to a monochrome PNG?
I have tried the ColorQuantize function which is mentioned in ...
16
votes
4answers
538 views
Create colour with given lightness value
How can I create a colour of my chosen hue with a given fixed lightness level?
For example, how can I create a reddish colour, col, so that ...
5
votes
2answers
267 views
Sharp ListDensityPlot
I have some quantity varying with time (horizontal axis of the plot): it first oscillates then it has a jump (larger than the amplitude of the oscillations), then it continues oscillating. I have that ...
8
votes
2answers
423 views
How to calculate mix of 4 colors defined in CIELAB L*a*b* model?
I have 4 colors that I converted from RGB to CIELAB L*a*b* model.
How can I calculate mix of these 4 colors when I have (L,a,b) for each such color?
How can I ...
3
votes
2answers
364 views
Use ColorFunction in ListLinePlot with If
The following code
ListLinePlot[{2, 4, 6, 8, 10, 12},
ColorFunction -> Function[{x, y}, If[x <= 3, Blue, Red]]]
should produce blue lines for $x\le3$ and ...
4
votes
2answers
190 views
Color based on (discrete) derivative of function
I am making a very basic stock simulation. I want ListLinePlot to color my stock viewer based on whether the price went up or down from the previous price. Here is ...
9
votes
1answer
166 views
Error Using Sow in DensityHistogram with ColorFunction
To find the color values used in a plot, I was using Sow as shown here:
...
8
votes
1answer
242 views
Discrete coloring in Plots
I would like to have a plot that is filled to the axis with Green if the y value is greater than 10, and ...
11
votes
2answers
214 views
Using uniform coloring in MatrixPlot
I have a rectangular matrix, which is m-by-10. Each element is either 0 or 1. I would like 0 to correspond to white elements, and 1 to red elements. This works ...
15
votes
2answers
320 views
Exporting a dashed plot with a color gradient to a vector graphics format ruins the dashing
When exporting a dashed plot with a color gradient to a vector graphics format such as EPS or PDF, the dashing is partly ruined. For example, this command:
...
7
votes
4answers
962 views
Coloring Points in a List Plot [duplicate]
Possible Duplicate:
ListPlot with each point a different color and a legend bar
I want to color the points in a list plot using a function of the (x,y) values.
I tried this (example with ...
23
votes
1answer
228 views
Is there a way to access the (lexically) current colour inside Graphics?
Note that this is not a duplicate of the question over there. That one asks for a given point, while I'm asking about the lexical structure (which, of course, is not directly related to any point in ...
5
votes
1answer
516 views
ListContourPlot-ColorFunction
How can I use ONLY the central 90% of the spectrum, not the whole range? For example, I do not like to see the lowest values in purple, but in deep blue color.
...
6
votes
1answer
253 views
Way to find color at a point in a Graphics?
I need to figure out a way to find out the RGB color value at a certain coordinate in a Graphics object. The Graphics object I am dealing with is continually Dynamically updated, so it is made of ...
6
votes
1answer
249 views
Color linear interpolation of ParametricPlot3D
I am looking for any ideas about how to colorize an ellipsoid with a custom gradient style or by a Blend function. I would like to colorize ellipsoid as follows:
...
9
votes
4answers
556 views
Height-dependent filling color in 3D Data Plots
I would like to have the filling of my ListPlot3D display the same color than the one applied to the data. This question makes sense only in the case of conditional coloring of data (according to ...
14
votes
2answers
1k views
How to save plots in grayscale
As sophomoric as this question seems, how should I save plots in grayscale in Mathematica?
I generally like eps images for their scalability and I use ghostscript or other third party perl scripts ...
15
votes
4answers
541 views
How can I create a ColorFunction using Blend?
As shown below, I am trying to find a cool way to show some variance weighted deviation from the mean. There are 10 attributes that I compute the distance for.
How can I add a color function such ...
26
votes
4answers
1k views
How to change the default ColorData used in Mathematica's Plot?
This question leads on from the recent question What are the standard colors for plots in Mathematica?
There it was determined that the default color palette used by ...
