Nicolas Douillet

PhD, INRIA and CNRS alumni

Last seen: 3日前 | 2017 年からアクティブ

Followers: 0 Following: 0

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

Programming Languages:
MATLAB
Spoken Languages:
English, French

統計

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Geoid
Function to compute, display, and save a icosahedron based geoid at any iteration (vertices + triangles)

10日前 | ダウンロード 3 件 |

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Platonic solids
Function to compute, display, and save the five platonic solids. Also mesh them with triangles or other polygons (square, pentag...

11日前 | ダウンロード 9 件 |

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Simplex convergence animation
Simplex algorithm convergence animation demo on Matlab 'peaks' test surface

14日前 | ダウンロード 5 件 |

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PI3MFT
Printable Iterative 3D Meshed Fractal Toolbox

3ヶ月前 | ダウンロード 5 件 |

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Any rotation (3D, 2D)
Function to rotate a -array of- vector(s) around any given -shifted- axis, in 2D or 3D space.

3ヶ月前 | ダウンロード 3 件 |

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Circular meshes
Sphere and torus circular meshes

3ヶ月前 | ダウンロード 2 件 |

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Construct an index vector from two input vectors in vectorized fashion
Create an index vector defined by two input vectors, one defining the beginnings of one or more index ranges, and the other defi...

4ヶ月前

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Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...

4ヶ月前

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"Low : High - Low : High - Turn around " -- Create a subindices vector
Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

4ヶ月前

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Matrix indexing with two vectors of indices
Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).

4ヶ月前

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Sum My Indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...

4ヶ月前

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Getting the indices from a matrix
Inspired by Problem 645. Getting the indices from a matrix. Given a matrix A (or a vector), return the indices (always in row...

4ヶ月前

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First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero i...

4ヶ月前

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Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2 3] -> [1 1 2 2 3 3] ...

4ヶ月前

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Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

4ヶ月前

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Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

4ヶ月前

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Isprime optimus [FAST]
Primality test using isprime Matlab(r) stock function, but ~60% faster. Based on Nicolas Douillet 'Christmas eve prime squares e...

4ヶ月前 | ダウンロード 7 件 |

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alGolbach
Algorithm to compute and list every Goldbach couples of prime numbers which sum equals the given -even- input

4ヶ月前 | ダウンロード 1 件 |

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Prime numbers spirals
Functions to display prime numbers spiral and prime squares spiral. Also check primes sum and prime squares spiral length.

4ヶ月前 | ダウンロード 4 件 |

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Quickest way for alternate indexing a vector
Thank you all for your interest and answers :-) I am going to test them, pick the best in my case, and then choose for the co...

4ヶ月前 | 0

質問

Quickest way for alternate indexing a vector
Hey, I am looking for the quickest way to create a vector like this : u = [5 7 11 13 17 19 23 25 ...

4ヶ月前 | 5 件の回答 | 0

5

回答

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Mesh generation toolbox
Some useful tools for mesh generation

7ヶ月前 | ダウンロード 9 件 |

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mesh processing toolbox
Some useful tools for mesh processing

7ヶ月前 | ダウンロード 19 件 |

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Sample triangle (2D, 3D, ND)
Function to generate a triangular sampling grid of a given triangle

8ヶ月前 | ダウンロード 1 件 |

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Projective geometry demo
A "pedagogic" demo of projective geometry showing some mathematical objects projections

8ヶ月前 | ダウンロード 2 件 |

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Mesh ovoid
Function to compute, display, and save a meshed ovoid

8ヶ月前 | ダウンロード 2 件 |

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Apparent distance conservation in Matlab plot window while rotating 3D objects
Ok I realized I have to be even clearer. I am going to eplore the camera toolbar possibilities -which I didn't really know unti...

8ヶ月前 | 0

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Apollonian gaskets
Function to compute and display the apollonian gasket of any 3D triangle or 3D regular polygon

8ヶ月前 | ダウンロード 3 件 |