Différences

Ci-dessous, les différences entre deux révisions de la page.

--- fractale_de_lyapunov [2019/11/17 05:10] – [C++] Mushussu
+++ fractale_de_lyapunov [2019/11/17 20:16] – [Processing] Mushussu
@@ Ligne 107: / Ligne 107: @@
     system(fonction.c_str());
     return 0;
+}
+</code>
+====== Processing =====
+<code java>
+int iteration = 20000;
+int valMin = 0;
+void setup() {
+size(200, 200);
+}
+void draw() {
+println(hour() + ":" + minute() + ":" + second());
+loadPixels();
+for (int i = 0; i < width; i++) {
+ for (int j = 0; j < height; j++) {
+   float a = map(i, 0, width, 1.8, 2.2);
+   float b = map(j, 0, height, 3.6,4);
+   float seq[] = {a, a, a, a, b, b, b, b, b,b ,b , b,b , b, b, b, b, b, b, b}; // AAABBBBBAB
+   float[]  A = new float[iteration];
+   A[0]= 0.5;
+   for (int k = 1; k < iteration; k++) {
+     A[k] = seq[k % seq.length] * A[k - 1] * (1 - A[k - 1]);
+   }
+   float exposant = 0;
+   for (int k = 1; k < iteration; k++) {
+     exposant += log(abs(seq[k % seq.length] * (1 - 2 * A[k])));
+   }
+   exposant = exposant / iteration;
+   int c;
+   if ((exposant > 0) || (exposant < -1)) {
+     c = 0;
+   } else {
+     c = floor(map(exposant, 0, -1, 255, 0));
+   }
+   pixels[i + j * width] = color(c);
+ }
+}
+updatePixels();
+saveFrame("Lyapunov" + "-" + year() + "-" + month() + "-" + day() + "-" + hour() + "-" + minute() + "-" + second() + ".png");
+println(hour() + ":" + minute() + ":" + second());
+exit();
 }
 </code>
@@ Ligne 119: / Ligne 164: @@
 https://www.scratchapixel.com/lessons/digital-imaging/simple-image-manipulations
-{{tag>c++ sylvain}}
+{{tag>c++ Processing sylvain}}