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

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2
votes
1answer
220 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 ...
2
votes
1answer
96 views

Can I apply a ColorFunction to FaceGrids, or otherwise have FaceGrids with varying color?

I want to make a 3d plot with FaceGrids with a certain color scheme. Specifically, I'd like them to be one color below a diagonal line, and a different color above ...
1
vote
2answers
218 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 ...
1
vote
2answers
163 views

Image's pixels GPU colour classes splitting

How can I split in color classes, the pixels of an image that I load in Mathematica? I would an output like this: ...
1
vote
2answers
131 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 ...
1
vote
2answers
109 views

How can I remove edges from my DiscretePlot?

By default, DiscretePlot displays "edges" along the sides and, prominently, align the top when ExtentSize -> Full is set. For ...
1
vote
2answers
235 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. ...
1
vote
2answers
315 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: ...
1
vote
2answers
69 views

ParametricPlot - Problem with ColorFunction

I am unhappy with the following mapping: ...
1
vote
1answer
150 views

Remove overlapping red and green color

How to remove overlapping red and green color regions, leaving only red ones?
1
vote
1answer
129 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
340 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 (...
1
vote
2answers
82 views

ColorFuntion input

Is there any input for ColorFunction, which ranges from Black for smallest values, goes through red-orange-yellow and ends in very bright yellow almost white for ...
1
vote
1answer
124 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 ...
1
vote
1answer
124 views

How to keep front and back colors of Polygon in Graphics3D same all the time [duplicate]

I want the same face color for a 3D Polygon when viewed from front or back or from any angle. i.e. I want the color not changed under any conditions. Front and ...
1
vote
1answer
545 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 ...
1
vote
2answers
191 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 ...
1
vote
1answer
73 views

Missing arrow tips and colors

My main problem is: I plotted a curve here, but the tip of some arrows are missing. Why does this happen, and how can I fix this? Not the main problem: Also, I once tried to make the arrows with ...
1
vote
2answers
155 views
1
vote
1answer
112 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 ...
1
vote
1answer
134 views

Apply ColorData scheme for Plot from green to red

I'd like to apply a ColorData to this plot: ...
1
vote
1answer
109 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 ...
1
vote
1answer
80 views

Identifying the color in Image

This has mad me Crazy for a while Can any one please Help me solving this this is the Image that I am working on . Basically this image is made up of 98 different color patches 7 patch on each level ...
1
vote
1answer
92 views

add a color bar legend to a 3D plot

This has a connection to the previous post here: puzzled with a color function Also, a recent post of mine appeared here: Create a color bar plot legend but I should have solved the problem with the ...
1
vote
1answer
104 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 ...
1
vote
1answer
133 views

Time ColorFunction

I have the following data ...
1
vote
1answer
90 views

Plot a vector valued function of two variables using color density

I have a vector (3D) valued function of two variables. I want to visualize it as a density plot, using R,G,B color values to display the value at the point (x,y). I've come up with a couple of ...
1
vote
1answer
164 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 ...
1
vote
1answer
303 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: ...
1
vote
1answer
155 views

CMYK colours in a graph template

Hi I'm trying to put together a graphing template. Unfortunately, my arrowheads are a different colour than my functions when the graph is exported to something like a PDF. Is there a way I can ...
1
vote
0answers
40 views

Colouring of multiple data sets in DiscretePlot [duplicate]

I noticed the following strange behaviour: Let us first define an array of functions g[k_] := {Sin[k], 2*Sin[k]} gg = g[k] When I plot this array of ...
1
vote
0answers
37 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 ...
1
vote
0answers
47 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) ...
1
vote
0answers
156 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 (...
0
votes
2answers
180 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 ...
0
votes
1answer
64 views

Plotting 2D color function on the plane [duplicate]

Suppose p is a some point in the plane. The function f[q] defined as ...
0
votes
2answers
103 views

ListLinePlot with colors from data

I am trying to color a simple 2D plot (using ListLinePlot) based on data in the form of 3-vectors. ...
0
votes
2answers
79 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 ...
0
votes
1answer
162 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 ...
0
votes
4answers
79 views

Plot graphs with ListPointPlot3D and different colours and size of points

Hello I am New in Mathematica. I have a set of points and I want to visualize in Wolfram Mathematica. I want to see big blue points and small green points in one picture. Big Blue points ...
0
votes
1answer
53 views

Importing colors from file

I just tried something straightforward (for me): ...
0
votes
1answer
83 views

ListDensityPlot with discrete bins [duplicate]

We consider a table of the form data = Flatten[Table[{i,j,f[i,j]},{i,1,ni},{j,1,nj}],1] The function f[i_,j_] has been made ...
0
votes
1answer
80 views

shade plane with a color function color(x,y)

I am making a RGB color function which assigns an RGB color to each point in the plane. To check if it does what I think it should do (i.e. debugging it), it is helpful to be able to plot the function ...
0
votes
2answers
119 views

How can I get a PieChart to be colored as I wish?

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 ...
0
votes
1answer
228 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 ...
0
votes
1answer
81 views

Density map strange mapping of color

I tried to convince Mathematica 8 to plot a density map of a function: $$f(x,y) = \frac{2(x^2 - y^2)-1}{(x^2 + y^2)^2}$$ with color scheme called "TemperatureMap". At $x = \pm 1$, $y = 0$ it's ...
0
votes
1answer
35 views

How to known exactly what color assign “TemperatureMap” to a particular value? [closed]

Usually ColorData["TemperatureMap"] is using to coloring graphs and show how near is any value to 0(Blue), 1(Red), or in the mean (White). The question is: How ...
0
votes
1answer
121 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 ...
0
votes
0answers
42 views

complicated color function and color bar legend (summary of the results from previous relevant posts)

At first let me apologize. I should have read the policies of this forum before attempting a post. I was more accustomed to a moderated forum like MathGroup than such an active one like the ...
0
votes
0answers
67 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. ...