# Nicolas Douillet

### PhD, INRIA and CNRS alumni

Interested in computational geometry, image processing, 3D reconstruction, mesh processing, mesh generation, arithmetics.

**Programming Languages:**

MATLAB

**Spoken Languages:**

English, French

**Professional Interests:**

**Statistics**

RANK**7,231**

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REPUTATION**5**

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**13** Questions

**11** Answers

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84.62%
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VOTES RECEIVED**5**

RANK**1,694** of 18,459

REPUTATION**1,030**

AVERAGE RATING**4.90**

CONTRIBUTIONS**71** Files

DOWNLOADS **214**

ALL TIME DOWNLOADS**6815**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

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**Content Feed**

Submitted

isinside2Dset

Function to check if a vertex is located inside or outside a given 2D set.

17 days ago | 6 downloads |

Submitted

Jerusalem cube

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

1 month ago | 4 downloads |

Submitted

Sierpinski ball

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

1 month ago | 1 download |

Solved

generate number in particular way

A = [1 5 2 7]; MAX = 10; generate a array Y = [1 2 2 2 2 2 3 3 4 4]; i.e. total eleme...

1 month ago

Solved

Find the sum of the elements in the "second" diagonal

Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

1 month ago

Submitted

The MATrix LAB has you

Need to unplug ? -> Follow Trinity, deep into the rabbit hole ;-)

1 month ago | 7 downloads |

Submitted

chat with HAL9000 !

chat with HAL9000 and try to survive it ! ^_^

1 month ago | 1 download |

Submitted

3D printable Christmas star

Function to compute, display and save a 3D printable Christmas star.

2 months ago | 7 downloads |

Submitted

3D printable Koch snowflake

Function to compute, display, and save the triangular base 3D Koch snowflake at any iteration. Help, doc, examples included.

2 months ago | 2 downloads |

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...

2 months ago | 2 downloads |

Submitted

Freeman chain code

Freeman chain code algorithm to extract boundaries of objects in a binary image. Help, doc, examples included. + Some bwmorph op...

2 months ago | 4 downloads |

Solved

Build edges list

Input T is a triangulation connectivity indices list (triplet list of indices -positive integers-, each index refering to a vert...

2 months ago

Solved

List every vertices neighbor indices

Input T is a <https://fr.mathworks.com/help/matlab/ref/triangulation.html triangulation>. The purpose of this function is to ...

2 months ago

Solved

Find a common edge

First input is T, a triplet list of indices. Second input is e = [e1 e2], a row vector, couple of indices (positive distinct int...

2 months ago

Solved

Remove duplicated triangles

Input T is a triangulation (triplet list of indices -positive integers-, each index refering to a vertex number in a correspondi...

2 months ago

Solved

Find neighbor triangle indices

First input T is a triangulation (triplet list of indices -positive integers-, each index refering to a vertex number in a corre...

2 months ago

Solved

Find edges from a vertex

First input is T, a triplet list of indices. Second input is i, a single index (positive integer). The goal of this function is ...

2 months ago

Comment générer un vecteur content N valeur binaire dont 10% de ces valeurs sont égales à 1

Salut, Alors déjà si tu veux exactement 10% ça va bien sûr dépendre de la taille de ton vecteur (si celui-ci possède moins de 1...

2 months ago | 0

plotting spectrogram for 3d matrix

As Marco said, spectrogram takes a vector as input, not matrix. However depending on how your signals are stored in your data ma...

2 months ago | 0

Solved

Spherical radius given four points

Determine the radius of a sphere provided four non-coplanar points on the surface of the sphere. pts = [x1 y1 z1; x...

2 months ago

Are there marker types sensitive to light ?

No answer, so I guess the answer is no (?) Edit : solved, cause actually pretty much the same question as this one.

2 months ago | 0

| accepted

Submitted

Tetrahedron insphere

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

2 months ago | 2 downloads |

Submitted

Tetrahedron circumsphere

Function to compute the centre and the radius of the circumsphere to a given tetrahedron. Help, doc, examples included.

2 months ago | 5 downloads |

Solved

Back to basics 23 - Triangular matrix

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

2 months ago

Solved

Back to basics 21 - Matrix replicating

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

2 months ago

Solved

Sum of series VII

What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

2 months ago

Solved

Sum of series

a(n) = n^2 - (n-1)^2 find the summation of the series upto n i.e. a(1)+a(2)+...+a(n)

2 months ago

Solved

Sum of series IX

What is the sum of the following sequence: Σ 1/k! for k=1...n for different n?

2 months ago

Solved

Sum of series VI

What is the sum of the following sequence: Σk⋅k! for k=1...n for different n?

2 months ago