Questions on the construction of 2D and 3D graphics through the direct use of primitives, directives, and functions. Include the graphics3d tag for questions specifically on 3D graphics. This tag is not to be used for basic questions on visualizing functions and lists using the various flavors of ...

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3
votes
2answers
380 views

Triangle mapped on a sphere in $\mathbb R^3$?

How can I map a triangle on an sphere? I want to visualize (plot or animate) it for my student in my Non Euclidean geometry. I have no restrictions on the triangle's kind or on the sphere in $\mathbb ...
3
votes
2answers
317 views

How do I represent a system dynamics feedback loop?

In System Dynamics, if I want represent the relationship between Speed and Distances, I create a Flow (Speed) and a Stock (Distance) as you can see in this Insight Maker Sample . Heres an Image of how ...
3
votes
2answers
302 views

Extracting a single layer from a SHP file

I have an ESRI ShapeFile (SHP) that I've loaded. It has a number of layers which I can see the names of by using: Import["file.shp", "LayerNames"] I get ...
3
votes
2answers
560 views

X label in GraphicsColumn is cut off

I'm trying to use GraphicsColumn to plot two curves with very different ranges. for example, ...
3
votes
1answer
214 views

LocatorPane, Dynamic and deleting locators

Compare the following two code snippets : Version 1 ...
2
votes
1answer
164 views

Render dynamic Graphics objects static

As was discussed in the comments of another question (MathLink Graphical Output (Plots) to File), Graphcis objects produced by commands such as ...
2
votes
1answer
140 views

How to embed graphic-element-specific metadata within a Graphics object?

One of the most crucial requirements for rich, interactive scientific graphics is being able to "annotate" individual graphic elements (e.g. the data points of a scatterplot, the individual curves in ...
2
votes
3answers
1k views

How to color a contour plot over a subset of colors displayed in the bar legend

This seems real easy but I can't find the answer. I have a few contour plots that I am combining and want to use only one bar legend that captures all the values. Given that I know the range of ...
1
vote
1answer
150 views

Generate a set of 3D coordinates subject to constraints

Generating a set of random 3D coordinates is ok, e.g. ...
1
vote
1answer
233 views

Detecting a nonlinear edge in a 2D point pattern

Following an earlier post here, I have generated a point pattern on the unit square $[0,1]\otimes[0,1]$, which is described by a piecewise constant intensity function constructed so that (in ...
1
vote
1answer
156 views

Using Manipulate with a control variable for selective recalculation

I'm trying to adapt Nasser's method for using a control variable inside Manipulate to selectively choose what part of the code should be recalculated depending on the controls changed. I've also read ...
1
vote
2answers
93 views

ListPlot : range from $0$

I want to plot values of a table for example: table = {0.456, 0.7899, 1.3456, 9.8908} But I want to Plot points (x,y) like: ...
1
vote
3answers
1k views

Mathematica 8: ContourPlot finding out max and min function values [duplicate]

I have a ContourPlot where I have let Mathematica draw the contours automatically. I would like to extract the zmax and zmin contour values that have been determined internally so that I can pass them ...
1
vote
1answer
930 views

Problem with transparency when I export an eps file

I have the following simple Mathematica code: ...
0
votes
6answers
189 views

How to build a game board [duplicate]

I have - rather lazily - constructed a chessboard like this: ...
16
votes
4answers
360 views

How do you turn off the Dashed graphics directive? [duplicate]

I'm looking at Graphics Directives but can't figure out a way to turn off the Dashed graphics directive. For example, given ...
15
votes
2answers
265 views

Upon PDF export, edgeless rectangles do not tile perfectly, and corners may be cut. Is this a bug?

Note: this problem is no longer present in version 10. Exporting the following as a PDF file ...
12
votes
4answers
3k views

How do I draw a DensityPlot in polar coordinates?

I am trying to plot $J_m(\chi_{mn} r) \cos(m\phi),$ where $J_m(\chi_{mn}) =0,$ as a DensityPlot in polar coordinates (solution to 2D wave equation in polar ...
12
votes
1answer
241 views

Effects of single-point and multi-point calls of Point on plot range

Several Graphics primitives are listable. For instance, Point accepts lists of coordinates so that multiple calls to Point are ...
11
votes
2answers
253 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. ...
9
votes
2answers
349 views

In version 9 PlotLegends, how can I remove the strange edges that appear around LegendMarkers?

I'm running Mathematica version 9. I am using ListPlot to plot two sets of data. For each data set, I am using different ...
8
votes
3answers
414 views

TreePlot with centered vertexes

I want to draw a tree plot for Euler totient function for this question like the following: I generate the EulerPhi for first 20 numbers into a list: ...
7
votes
3answers
216 views

Graphics in Notebook Different from Graphics Expression?

Consider the expression TreeForm[a+b^2+c^3+d] which displays as This is a nice Graphics object, as I can prove by typing ...
7
votes
1answer
128 views

What should I call the messages that appear when the mouse moves over failed graphics output?

I attempted to evaluate the following Plot[x^2, {x, 1, 2}, PlotStyle -> {RGBColor[a]}] which, of course, failed. After the failure, putting my mouse over the ...
7
votes
2answers
251 views

How to Rasterize in “Printout” style

I am trying to ascertain how large a justified text block will be when printed by rasterizing it in the "Printout" style environment. However, ...
7
votes
1answer
289 views

Color ramp banding in PDFKit when exporting Raster image Inset to PDF

Here I produce a Raster image with large uniformly colored rectangles and put it in an Inset: ...
7
votes
2answers
297 views

Dealing with numbers too large for machine precision in Graphics

Graphics only supports machine precision numbers (i.e. number that can be converted to machine precision). Take for example ...
6
votes
2answers
195 views

How to get rid of the blank areas around alphabetical images?

I attempt to test the mean graylevels of the alphabets "W" and "Z". I used the following code to create the images of them. ...
6
votes
1answer
661 views

How can I get better control over StreamPlot?

I'm having some difficulties with the command StreamPlot in Mathematica 7.0. Here's the basic plots I'm doing : ...
6
votes
1answer
208 views

Does it make sense to ask for the color of a Graphics3D “voxel”?

Say I generate some Graphics3D object, e.g.: Graphics3D[{Red, Sphere[{0, 0, 0}, 1], Blue, Sphere[{1, 0, 0}, 1]}] Does it make sense to ask for the color of a ...
6
votes
2answers
1k views

Deformed style when exporting eps files

I want to export a plot into an eps file. Below I present a sample plot code in order to demonstrate the two issues that appear. (1). LabelStyle: When I use ...
6
votes
3answers
482 views

Getting all the countries' flags and then using them as chart labels?

What's the code to list all the world's flags? CountryData["G8", "Flag"] works to get those particular flags, but what about all the world's flags? ...
6
votes
2answers
382 views

How do I transform a rasterized graphic's coordinates back to its original ListPlot data coordinates?

From this question I successfully made an elliptical fit for my data. However, when I try and collect the datapoints within the ellipse via this question the coordinates of my ellipse correspond to an ...
6
votes
2answers
961 views

Animating a rotating disk

I have a system with 3 degrees of freedom that I want to know if it is possible to visualise with Mathematica in the two-dimensional $X-Y$ plane. I have a plane ...
6
votes
2answers
455 views

Generate Random Text within a Rectangle

I would like to generate images such as the four below. That is: some text of different length fit within a Rectangle[] using ...
5
votes
5answers
640 views

Subdividing a polygon , equivalent fractions

I see that I was a real "doofus" here and my original question was flawed. You can't divide a polygon like you can a circle or a rectangle, except in special cases... I should have seen that right ...
5
votes
0answers
147 views

some Graphics output do not fully render on the screen until an extra click is made into the notebook

Sometimes when using a command such as Grid and looking at the output, some of the actual lines (frame, gridlines) that make up the display will be missing on the ...
5
votes
1answer
229 views

Exported graphics texture to eps is too dark

Why is the exported graphics eps file so dark? It looks much lighter (and better) as the Mathematica output appearing the notebook. After running ...
5
votes
2answers
289 views

Median marker style in BoxWhiskerChart

I was trying to adapt the BoxWhiskerChart to obtain a minimalistic quartile plot, like this: What I obtained is the plot below that is, however, unsatisfying; ...
4
votes
2answers
109 views

Fill curve betwen specified abscissa points [duplicate]

I am plotting the Maxwell-Boltzman distribution of molecular speeds. I want to be able to select a region to integrate using a manipulate function. Then I want to have that same region filled in on ...
4
votes
4answers
257 views

Conveying density of 5-smooth (Hamming) numbers

A number is 5-smooth if its only prime factors are 2, 3 or 5. Example: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, … Interesting thing is that as they become larger ...
4
votes
1answer
100 views

Why does a heavy background slow LocatorPane from updating, even if only the locators are Dynamic?

I'm having some trouble getting a dynamic plot to operate efficiently, and I think I've tracked down at least part of the problem to some pretty weird behaviour on the part of ...
4
votes
4answers
271 views

Filling and Shading an Harmonic Curve

Suppose I have an equation plotted as shown: ...
4
votes
1answer
2k views

Transform 3D data into 2D color map like Matlab's surf/imagesc

I have a bunch of 3D data (x, y coordinates and values) which is generated in Matlab and I need to render them in a 2D color map with certain axis ranges. Here are the Matlab code and the generated ...
4
votes
1answer
259 views

Use single ListPlot for multiple sets of data (on separate graphs)

This is the code I have working for a single set of data. Is there a way I can structure this to have multiple sets of data? ...
3
votes
0answers
73 views

How can I export graph as PDF with metadata such as Title and Author fields

I want to export a figure from Mathematica in PDF format. Moreover, I want to fill Author and Title fields of the PDF. For example, to fill Author field, I use the following code: ...
3
votes
1answer
92 views

How to draw a normalized tangent arrow [closed]

I want to draw a normalized tangent arrow, so I use the Normalize command as follows: ...
3
votes
1answer
141 views

BarChart that lines up with dates in DateListPlot

I am trying to create a chart similar to the view offered by TradingChart, but with custom data not relating to finance. ...
3
votes
2answers
181 views

Using high RasterSize or ImageResolution changes contour pattern

I found that the detailed contour pattern will be altered if we Rasterize the original graphics using high RasterSize or ...
3
votes
3answers
112 views

Style changes between controls and graphics

In the following Manipulate, the style (font?) of the a changes between when it is a control label and when it is a label in the graphics. Is there a way to make ...