Linked Questions
23 questions linked to/from How to create a new "person curve"?
-1
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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. ...
55
votes
1
answer
27k
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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?
13
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}...
11
votes
5
answers
734
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How to get a smooth outline
I have a outline image
img=Uncompress[FromCharacterCode[
Flatten[ImageData[Import["https://i.stack.imgur.com/cc0Mt.png"],"Byte"]]]]
This is current method
<...
10
votes
3
answers
692
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 ...
6
votes
3
answers
1k
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:
...
6
votes
3
answers
392
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8
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3
answers
2k
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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 <...
21
votes
1
answer
1k
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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 ...
6
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2
answers
2k
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How to graph the contour of a resulting Manipulate curve
How can the green contour be graphed?
...
9
votes
3
answers
528
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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 ...
4
votes
4
answers
270
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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 ...
3
votes
1
answer
2k
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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}}; ...
11
votes
1
answer
459
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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 ...
2
votes
3
answers
392
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How to fit implicit function based on an image in mathematica?
I know how to make a plot given a function, but I don't know how to get implicit function based on an image.
For example, I have the image shown below (thumbnail):
Full size image import:
...