Februar 24, 2012

Der Sketch generiert farbige Blätter auf Grundlage eines Bildes.

boolean go = true;
PImage img;

void setup()  {
size(800,600);
smooth();
background(255);
stroke(255);

img = loadImage("mops.jpg");
img.loadPixels();

}

void draw() {
if(go) {
for(int i = 0;i img.width) {
_x -= abs(_x+w-img.width);
}
if(_y+w > img.height) {
_y -= abs(_y+w-img.height);
}
PVector c = new PVector();
for (int x = _x; x < _x+w; x++ ) {
for (int y = _y; y < _y+w; y++ ) {
int loc = x + y * img.width;
color col = img.pixels[loc];
c.x += red(col);
c.y += green(col);
c.z += blue(col);
}
}
c.div(w*h);
return color(c.x,c.y,c.z);
}

void makeLeaf(float _x,float _y) {

//int loc = int(_x) + int(_y) * img.width;
//fill(img.pixels[loc]);
fill(getColor(int(_x),int(_y),10,10));

pushMatrix();
translate(_x,_y+5);

scale(random(1,2.5));
rotate(random(TWO_PI));

strokeWeight(0.5);
beginShape();
vertex(0, -10); // V1 (see p.76)
bezierVertex(0, -10, 5, -2.5, 0, 0); // C1, C2, V2
bezierVertex(0, 0, -5, -2.5, 0, -10); // C3, C4, V3
endShape();

strokeWeight(0.2);
beginShape();
vertex(0, -10);
float c2x = random(3,4.2);
float c2y = random(0,2);
bezierVertex(0, -10, c2x, -c2y, 0, 0); // C1, C2, V2
bezierVertex(0, 0, -c2x, -c2y, 0, -10); // C3, C4, V3
c2x = random(0.5,1.5);
c2y = random(-0,-4);
bezierVertex(0, -10, c2x, -c2y, 0, 0); // C1, C2, V2
bezierVertex(0, 0, -c2x, -c2y, 0, -10); // C3, C4, V3
endShape();

popMatrix();
}