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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9
votes
4answers
715 views

Export Graphics[] without white edges

I am trying to generate & Export[] Image with the below code, but as shown in the images I get some white border around my rectangle. How could I export an images that stopes right at the edge of ...
8
votes
1answer
473 views

What is the best way to clip a graphic to a region?

What is the best way to clip a graphic to a certain region? Here's a very simple implementation to show what I mean: ...
12
votes
3answers
317 views

Can TreeForm be displayed “sideways”?

One recurrent problem I'm having with displays generated with TreeForm is that the expressions to be so displayed often at least one level with many (> 20) nodes ...
7
votes
4answers
2k 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 ...
6
votes
2answers
205 views

How to automate generation of image files?

I need to generate a large number of figures as PNG files, and I'm trying to decide whether Mathematica would be the quickest way to do this. All the figures have the same basic structure, and I'm ...
36
votes
5answers
2k views

Creating ghost trail effects

Does anyone know how to create a ghost trail effect? For a simple example look at this screenshot: You can find the actual animation here. What I would ultimately like to see it happen is to make ...
24
votes
3answers
2k views

Creating a 2D meshing algorithm in Mathematica

As what is proving to be a difficult, but entertaining task, I am attempting to adapt a 2D meshing algorithm created for MATLAB and port it to Mathematica. I understand meshing functions already exist ...
40
votes
4answers
2k views

Speeding up this fractal-generating code

I used the code below (which is a sample from this gist containing more similar code) in my answer to my own question about Mandelbrot-like sets for functions other than the simple quadratic on ...
16
votes
2answers
2k views

Placing a contourPlot under and Plot3D

I would like to combine a 3-dimensional graph of a function with its 2-dimensional contour-plot underneath it in a professional way. But I have no idea how to start. I have a three of these I would ...
13
votes
4answers
1k views

Find the minima and maxima of a list

I have a list, such as: ...
25
votes
1answer
313 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 ...
9
votes
4answers
911 views

Plot a 2D vector path onto a surface

In my calculus 3 course, we're studying gradients and have a project that takes a combination of 3D Gaussian radial surfaces and a basic parametric path $r(t) = \{x(t),y(t)\}$ to see how the gradient ...
16
votes
4answers
871 views

Subplots with connector lines

I am looking for advice from people who have more experience in this area on what is the best (simplest, least effort) way to create a graphic like the following: This is a rough mockup made in a ...
16
votes
5answers
2k views

How do I plot a plane EM wave?

I would like to display an electromagnetic (EM) wave. I have written code that works, but it does not "shade" the area between the graph and the axes. Both the ...
19
votes
3answers
5k views

Plotting Error Bars on a Log Scale

I have a plot with ErrorListPlot ...
14
votes
4answers
2k views

How to draw Fractal images of iteration functions on the Riemann sphere?

Prof. McClure, in the work "M. McClure, Newton's method for complex polynomials. A preprint version of a “Mathematical graphics” column from Mathematica in Education and Research, pp. 1–15 (2006)", ...
17
votes
4answers
514 views

How can I specify the arrowhead size in printers points?

Is there any way to specify the size of an arrowhead in printer's points? I'm looking for something that would have similar functionality to AbsolutePointSize, ...
16
votes
3answers
428 views

Memory Leak in Frontend - anyone know a workaround?

When using Rasterize on a Graphics expression composed of many differently coloured Graphics objects memory is allocated in the frontend which is then not released or reused when a similar graphic ...
13
votes
2answers
718 views

Computing the bounding boxes for Text objects

Regardless of AspectRatio, the Text boxes overlap. ...
8
votes
2answers
494 views

How To interactively create a Polygon in a Graphic?

Background: suppose I start with the following (working) snippet. Manipulate[Graphics[Line[{{0, 0}, p}], PlotRange -> 2], {{p, {1, 1}}, Locator}] Ideally, I ...
5
votes
2answers
397 views

ListContourPlot interpolation screws up on concave set of data

I want to create ListContourPlots for sets of Data (from a physics simulation) given as Triplets {x, y, f(x, y)}. Certain parameter regions in the x-y-plane are ...
11
votes
9answers
699 views

How to join each of the spheres? Or, how to make a 3D grid?

Graphics3D[{ {RGBColor[#], Sphere[#, 1/50]} & /@ Tuples[Range[0, 1, 1/5], 3] } ] It gives this: Now I want to get this one: How? As simple as ...
8
votes
1answer
476 views

Antialiasing option behaves weird (polygon edges visible in ContourPlot)

When I set the Antialiasing option in Style, I get the followings: ...
6
votes
2answers
507 views

How to insert guide-lines in graphics without specifying range?

Is it possible to insert guide lines in Graphics - for example a horizontal line through y=0 coordinate without specifying the range of the line? Originally I assumed Infinity might do the trick: ...
36
votes
1answer
1k views

Constructing election cartograms?

I found this pretty neat page showing cartograms for the US elections and I don't really know how to get started doing these graphics in Mathematica. For those who don't know, a cartogram is a map in ...
28
votes
5answers
5k views

Custom arrow shaft

Inspired by Sjoerd C. de Vries' nice answer to this question, and the desire to pimp a Graph I did with Mathematica recently I would like to know if there are ways to customize the arrow's shaft ...
24
votes
1answer
741 views

Make a map of squares

I'm trying to use Mathematica to make a map similar to the one here i.e. a US map where each state is represented by a square of a given size, located as close as possible to its true geographical ...
23
votes
3answers
990 views

How to detect crosses and circles in 60x60 raster images?

I have hand-written 60 pixel times 60 pixel squares. I need to detect whether they are empty, x or circle. TextRecognize function fails. Is there some other function to process this kind of raster ...
18
votes
3answers
572 views

LocatorPane and PlotRange

Consider the following snippet from the documentation on LocatorPane ...
30
votes
5answers
1k views

Rotating an image along a Möbius strip?

I am trying to make a GIF which will be a rotating Möbius strip, with some text printed along its (one!) side. I am trying to (obviously) do this in Mathematica. After some diligent searching and a ...
23
votes
5answers
1k views

How can I wrap text around a circle?

How can I wrap text around a circle? For example: the text in the sectors of this chord plot. Perhaps one could use FilledCurve[] and then apply a ...
20
votes
2answers
806 views

How can I pack circles of different sizes into a spiral?

Given a list of circles of different areas, I need to arrange them tangentially in order of increasing area and spiraling outward. An example of the type of packing I'm attempting is shown by the ...
20
votes
3answers
1k views

How to extrude a 3D image from a binary 2D image

I'm trying to extrude a nice 3D form from the 2D binary image below using the code posted, but I haven't had any luck in figuring out the error that's keeping ...
20
votes
1answer
2k views

Autorotating 3D plots

These days, I have to produce quite a few 3D surface plots (mostly functions of the type $\rho(\theta,\phi)$ plotted with SphericalPlot3D). To exchange these ...
19
votes
2answers
547 views

Movable text on a curve

Having an arbitrary curve defined as InterpolatingFunction, what is the best way to place a text on this curve? The text generally has two rows, for example: ...
14
votes
3answers
743 views

Get x and z coordinate from an image and make a parametric surface

In this blog entry, this step is mentioned: I grabbed an image of a Peugeot wine glass from the web and used the Get Coordinates function to digitize its outline, which I fed to Interpolation to ...
16
votes
2answers
2k 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 ...
11
votes
3answers
2k views

How to express ticks in scientific form? [duplicate]

I want to express the ticks in scientific form. I tried two ways as following ...
14
votes
5answers
2k views

How to draw an ellipse arc in 3D?

There is no Circle or Disk object in 3D. I quickly found a way to use Cylinder (thin lines, no faces, very flat): ...
12
votes
4answers
2k views

ListPlot with plotmarkers determined by point

I am trying to build on a simple example here: td = Prime[Range[25]] dsk = Graphics[{Blue, Disk[]}] ListPlot[td, PlotMarkers -> {dsk, 0.7}] How can I make ...
8
votes
5answers
496 views

can the color in MeshStyle be specified by a ColorFunction, such as “SunsetColors” for example. If so, what is the correct syntax?

This is an example given in Help: Plot3D[Sin[x y], {x, 0, 3}, {y, 0, 3}, MeshStyle -> Gray] Could this be changed to something like ...
17
votes
4answers
764 views

How can I replace bi-directional DirectedEdge pairs in a Graph with a single UndirectedEdge?

The Cayley graphs produced by Mathematica 8.0's CayleyGraph function represent actions that are their own inverses in an unconventional way: rather than using a ...
14
votes
2answers
873 views

Generating convex polyhedron from face planes?

Suppose I have lists of normals and points for planes. There's a convex polyhedron whose faces lie on these planes and are bounded by plane intersections. What would be the easiest way to produce an ...
12
votes
1answer
465 views

Graph stories, 3-d volumes

I saw a lesson plan that had students filling different shaped bottles at a constant rate. The idea was to graph height vs. time to show the students how different shapes would produce different ...
10
votes
4answers
475 views

Why do some CountryData flags render at low resolution?

This question is related to data analysis introduced here Why do some flag images from the CountryData dataset render at very low resolution both in Front End and ...
9
votes
1answer
266 views

Dimensions of the results of Text[] within Graphics[]

Is there a way to get the dimensions that the results of a Text[] will occupy within a Graphics[]? Specifically, if I run ...
12
votes
2answers
361 views

Anti-aliasing with the multiple-object form of Polygon?

Observe: rand = RandomReal[1, {4, 3, 2}]; Graphics @ Polygon @ rand Graphics[Polygon /@ rand] I am losing ...
9
votes
3answers
2k views

Saving high-quality graphics through commands

Say I make and display a graph in a Mathematica notebook: graph = CompleteGraph[100] If I drag the corner of the graph to increase its size, and then save it to ...
7
votes
1answer
265 views

Crash when displaying / rasterizing graphics with textures at high resolutions

CAUTION/Disclaimer: execution of some of the code below can result in a complete crash of Mathematica or even your system. Save all your work and do not try in a productive situation. For a graphical ...
15
votes
2answers
565 views

Plot Option Precedence while combining Plots with `Show[]`

I like to build sophisticated plots by combining simpler ones with Show[]. Typically this involves setting non-default Plot-Options with the different ...