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Calculer le rayon de cercles proportionnels (en fixant un diamètre minimal ou maximal)
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/* | |
Méthodologie : http://blog.adrienvh.fr/2014/04/09/calculer-le-rayon-de-cercles-proportionnels/ | |
*/ | |
// Distribution statistique | |
var distribution = [25, 46, 2, 39, 30, 21, 3, 19, 15, 5]; // http://www.random.org/integer-sets/ | |
var valeur_min = Math.min.apply(Math, distribution); | |
var valeur_max = Math.max.apply(Math, distribution); | |
// Calcul du rayon (diamètre minimal fixé) | |
var diametre_min = '20'; | |
var resultat = []; | |
for(var i in distribution) | |
{ | |
var valeur = distribution[i]; | |
var rayon = Math.round((diametre_min / 2) * Math.sqrt(valeur / valeur_min)); | |
resultat.push({'valeur':valeur, 'rayon':rayon}); | |
} | |
console.log(resultat); | |
// Calcul du rayon (diamètre maximal fixé) | |
var diametre_max = '1000'; | |
var resultat = []; | |
for(var i in distribution) | |
{ | |
var valeur = distribution[i]; | |
var rayon = Math.round((diametre_max / 2) * Math.sqrt(valeur / valeur_max)); | |
resultat.push({'valeur':valeur, 'rayon':rayon}); | |
} | |
console.log(resultat); |
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