2D curves intersection / Fil | Observable

Vocateur.

Published

Edited

Dec 22, 2019

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Chandrupatla’s root-finding method Sidi’s root-finding method Regular numbers DruidJS worker Natural breaks Distance to a segment Ray out of a convex hull Word Tour: 40k words and their friends Hello, @thi.ng/grid-iterators Head/tail breaks Pseudo-blue noise shader How fast does walk-on-spheres converge?AoC 12: shortest path under constraints KDE estimation Plot: Correlation heatmap Poisson Finish 2 Poisson disk sampling functions WoS with transport Simple and surprising sort Local median Time series topological subsampling Union-Find Level set experiment 1 Mean value coordinates Poisson potential Middle-square World of squares (spherical)World of squares Largest Inscribed Square Hello, PyWavelets Geothmetic meandian Hello, Reorder.js Geometric Median Image FFT Transport to a map Disc Transport TP3: Power Diagram and Semi-Discrete Optimal Transport The blue wave Hello, genetic-js Sliced Optimal Transport DruidJS Self-Organizing Maps meet Delaunay Hello, polygon-clipping seedrandom, minimal Walk on Spheres 2 Walk on Spheres Hello, Autoencoder Kaprekar’s number VoronoiMap2D Hello, ccwt.js Polygon Triangulation Quantile.invert?Linear congruential generator Hue blur Needle in a haystack Moving average blur Apollo 11 implementation of trigonometric functions, by Margaret H. Hamilton (march 1969)

2D curves intersection

The 2D approximate Newton-Raphson method Inverting Lee’s Tetrahedral projection Linde–Buzo–Gray stippling Mean shift clustering with kd-tree 2D point distributions Shortest path Kahan Summation Hello, delatin Dijkstra’s algorithm in gpu.js Lloyd’s relaxation on a graph Manhattan Diameter Manhattan Voronoi Mobility landscapes — an introduction Dijkstra’s shortest-path tree H3 oddities Protein Matrix Convex Spectral Weights Sort stuff by similarity Kriging Delaunay.findTriangle n-dimensions binning?Travelling with a self-organizing map UMAP-o-Matic MNIST & UMAP-js Hello UMAP-js Mean shift clustering Levenshtein transition Rd quasi-random sequences Automated label placement (countries)Phyllotaxis explained Motionrugs Planar hull (Andrew’s monotone chain algorithm)South Africa’s medial axis Travelling salesperson approximation with t-SNE Distance to shore Worker ngraph: pagerank, louvain…t-SNE Voronoi Cloud Contours Circular function drawing Kruskal Maze Mycelium Travelling salesperson approximation on the globe, with t-SNE tsne.js tsne.js & worker

F = t => [

2 * Math.cos(t - a) - 0.05 * Math.sin(t * 30),

Math.sin(t - a) + 0.05 * Math.cos(t * 30)

]

G = t => [

3 * t * Math.cos(3 * a) - 1,

5 * t * Math.sin(3 * a) - 1.5 - 0.5 * t * t

]

diff = (t0, t1) => {

const f = F(t0),

g = G(t1);

return [f[0] - g[0], f[1] - g[1]];

}

solver = solve2d(diff, N)

solution = solver(0, 0)

F(solution[0])

G(solution[1])

import { solve2d } from "@fil/2d-newton-raphson"

import { slider } from "@jashkenas/inputs"

width = 600

height = 300

d3 = require("d3@5")

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