Nicolas Douillet

Last seen: 1 day ago | Active since 2017

Followers: 6 Following: 20

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Interested in computational geometry, image processing, 3D reconstruction, geometry, mesh processing, mesh generation, number theory, fractals.

Programming Languages:
MATLAB
Spoken Languages:
English, French

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CONTRIBUTIONS
10 Problems
160 Solutions

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Solved

Quote Doubler
Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

5 days ago

Solved

De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

6 days ago

Submitted

Point set processing toolbox
Some useful tools for point set processing

11 days ago | 6 downloads |

Submitted

Freeman chain code and bw image processing sparing tools
Freeman chain code for binary image processing

1 month ago | 7 downloads |

Submitted

mesh processing toolbox
Some useful tools for mesh processing

2 months ago | 15 downloads |

Submitted

Mesh Reuleaux tetrahedron
Function to compute, display, and save the mesh of a Reuleaux tetrahedron

4 months ago | 1 download |

Submitted

Point to line distance [FAST]
Distance from a point to a line in 3D or in 2D, and coordinates of the point projected on the line. Also works for an array of p...

4 months ago | 7 downloads |

Submitted

Is_point_on_segment [FAST]
Function to compute if a point M belongs or not to a given [AB] segment of the 2D or 3D space. Also handles multiple points M to...

5 months ago | 1 download |

Submitted

Mesh generation toolbox
Some useful tools for mesh generation

6 months ago | 8 downloads |

Question

Solution for using rowfun but with a function handle ?
Hi, I want to apply my own function to every row of a numeric matrix. I currently use cellfun but the need for conversion fro...

6 months ago | 1 answer | 0

1

answer

Submitted

Discrete 2D shape -morpho-logical operators [FAST]
Basic logical operators (intersection, union, xor) between discrete 2D shapes. Works for convex or non convex shapes.

6 months ago | 1 download |

Submitted

Isprime optimus [FAST]
Primality test using isprime Matlab(r) stock function, but ~60% faster for vectors.

6 months ago | 2 downloads |

Submitted

Prime numbers spiral
Function to display the prime number spiral and the prime squares spiral. Also check primes sum and prime squares spiral length....

6 months ago | 1 download |

Submitted

Black hole animations
Two functions to create .gif animations of a black holes with the paths of an object passing throught their horizons.

7 months ago | 6 downloads |

Submitted

Sierpinski ball
Function to compute, display, and save the Sierpinski ball (fractal sponge) based on the regular octahedron. Help, doc and examp...

7 months ago | 1 download |

Submitted

Sphere homeomorphic surface quasi isotropic sampling
Quasi isotropic sampling, random or regular (+mesh), for a sphere homeomorphic surfaces. Help, doc and examples included.

7 months ago | 1 download |

Submitted

Torus homeomorphic surface quasi isotropic sampling
Quasi isotropic sampling, random or regular (+mesh), for torus homeomorphic surfaces. Help doc and examples included.

7 months ago | 1 download |

Submitted

LISA orbitography gif animation
Functions to build an animation of LISA space interferometer project path following Earth in the solar system.

7 months ago | 2 downloads |

Submitted

Sierpinski cuboctahedron
Function to compute, display, and save the Sierpinski cuboctahedron, at any iteration. Help and doc included.

7 months ago | 1 download |

Submitted

Galaxy model
A function to compute and display a galaxy point cloud (spiral or elliptic), with some tunable parameters (shape, number of arms...

7 months ago | 2 downloads |

Submitted

Sierpinski icosahedron
Function to compute, display, and save the Sierpinski icosahedron at any iateration / depth level.

7 months ago | 1 download |

Submitted

Star - planet - satellite system animation
A function to create an animation to model the orbitography and the gravitational field of a star - planet - satellite system.

7 months ago | 2 downloads |

Submitted

Sierpinski sphere
Function to compute, display and save the fractal Sierpinski sphere at any iteration. Help, doc, examples.

7 months ago | 1 download |

Submitted

Cube base 3D Koch snowflake
Function to compute, display, and save the cube base Koch snowflake, at any iteration. 3D printable ready option. Help, doc, exa...

7 months ago | 1 download |

Submitted

Regular polyhedron inscribed sphere
Function to compute and display the inscribed sphere of a regular polyhedron.

7 months ago | 1 download |

Submitted

Jerusalem cube
Function to compute, display, and save the Jerusalem cube at any iteration. Help, doc, and examples included.

7 months ago | 1 download |

Submitted

Triangle circumcircle (3D, 2D)
Computes and display the circumcircle coordinates of one given 2D or 3D triangle. Also provides centre coordinates and radius.

7 months ago | 1 download |

Submitted

Sierpinski tetrahedron
Function to compute save and display the Sierpinski tetrahedron fractal at any iteration. Also get rid of duplicated vertices.

7 months ago | 1 download |

Submitted

Tetrahedron insphere
Function to compute and display the insphere of any given tetrahedron. Help, doc, examples included.

7 months ago | 1 download |

Submitted

isinconvexset (2D, 3D)
Function to check if one vertex (set) is located inside or outside a given -opened- convex point set. Help, doc, and examples in...

7 months ago | 1 download |

Nicolas Douillet

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