Linked Questions

-1 votes
1 answer
388 views

how to Draw the letter geometrically by points [duplicate]

I have the given letter below. I want to draw it geometrically by using trigonometry and other formulas.Help me draw the letter OR give me the idea to draw the letter of any language using formulas. ...
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50 votes
1 answer
24k views

How can I draw a Homer with epicycloids? [duplicate]

You may have seen this video: https://www.youtube.com/watch?v=QVuU2YCwHjw. How does this work, and how to do it with Mathematica?
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  • 13.6k
12 votes
4 answers
3k views

Dynamic Epicycles

Thanks to all the thorough answers and comments, I've written the following code for an arbitrary number of epicycles. However, when I apply the formula $\gamma(t)=e^{it}+\frac{1}{2}e^{7it}+\frac{i}{3}...
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  • 575
8 votes
5 answers
634 views

How to get a smooth outline

I have a outline image img=Uncompress[FromCharacterCode[ Flatten[ImageData[Import["http://i.stack.imgur.com/cc0Mt.png"],"Byte"]]]] This is current method <...
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  • 23k
10 votes
3 answers
574 views

How to convert the binarize-picture to a Region

The Region of Mathematica is nice,and is the new conception of version 10.0.I can convenient get ...
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  • 23k
5 votes
3 answers
800 views

Find path through a set of Coordinates

I have a set of coordinates that I need a robot to draw, thus it must take the shortest path along these coordinates. Plotting them looks like this: ...
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  • 233
8 votes
3 answers
2k views

How do I find the intersection of a closed 3D curve given by numerical data with a specified plane?

I have a list of 3D data points which form a closed curve. My own data can't be easily generated analytically, but the qualitative behaviour is well represented by a parametric curve families such as <...
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  • 741
21 votes
1 answer
1k views

Eigenfunctions of the Laplacian on an arbitrary mesh

So, I've constructed a mesh over which I'd like to find eigenfunctions of Laplace's equation with a free boundary (a zero Neumann boundary condition along the edge). Mostly because I figured an ...
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4 votes
3 answers
341 views

How can I get good fit for polar data

...
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6 votes
2 answers
1k views

How to graph the contour of a resulting Manipulate curve

How can the green contour be graphed? ...
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  • 467
4 votes
4 answers
239 views

Can I Constrain ListInterpolation by Curvature?

Using image analysis, I have found the positions of a circular ring and imported them as xx and yy coordinates. I am using ...
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  • 683
3 votes
1 answer
1k views

Convert a closed curve in an image to a parametric equation

I want to generate a parametric equation for a closed curve, which is defined in a 2d image (such as below). The equation is {x{t}, y{t}}; ...
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  • 711
8 votes
3 answers
302 views

Smoother boundaries between components of segmented image

I'd like to use boundaries between components of a segmented image to create a mesh for finite elements, as described in Mesh for Images for three materials and meshes with multiple regions from 2D ...
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  • 1,100
11 votes
1 answer
409 views

How can I use Mathematica to make a captcha image?

This was inspired by this post which is about the serious business of website deployment in the Wolfram Cloud, and interaction with Google's reCaptcha system. I started thinking of how to make those ...
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  • 62.4k
2 votes
2 answers
348 views

Creating a custom e-seal

Well, the question is obvious: how can I create the following e-seal (with the rotated wrapped text, inserted image etc) with Mathematica? The central image is the following So, the following ...
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  • 8,308

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