generative-plotter-thingies/blome/blome.js

function cp(phi) {
    return new Point(Math.sin(phi), Math.cos(phi));
}

function rnd(min, max) {
    return min + Math.random() * (max - min);
}

function scribblify(objs, delta) {
    for(var i=0; i<objs.length; i++) {
        var p = objs[i].clone();
        for(var j=0; j<p.segments.length; j++) {
            console.log(i, j);
            p.segments[j].point += new Size(rnd(-delta/2, delta/2),
                                            rnd(-delta/2, delta/2));
        }
    }
}

globals.blome = function() {
    var pathprops = {strokeColor: 'black', strokeWidth: 1,
                     closed: true};
    var size = project.view.size;
    var stemwidth = 0.03;
    var num_leaves = 9;
    var leave_start = 5;
    var leave_size = size.width / 3;
    var spos = size * new Size(0.5, 0.99);
    var pos = project.view.size * new Size(rnd(0.4, 0.6), 0.3);

    var flower = [];

    var stem = new Path(pathprops);
    flower.push(stem);
    stem.add(spos - size * new Size(stemwidth, 0));
    stem.add(pos);
    stem.add(spos + size * new Size(stemwidth, 0));

    function mk_stemleave(stempos) {
        var stemleave = new Path(pathprops);
        flower.push(stemleave);
        var stemleavesize = size * new Size(0.25, 0.05);
        var p = stem.getPointAt(stem.length * stempos);
        var sig = (stempos < 0.5) ? -1 : 1;
        stemleave.add(p + new Size(size.width/70 * sig, 0));
        stemleave.add(p + new Size(sig * rnd(0.8, 1.2), sig) *
                      stemleavesize);
        stemleave.add(p + new Size(sig * rnd(0.8, 1.2), -sig) *
                      stemleavesize);
    }
    mk_stemleave(rnd(0.15, 0.26));
    mk_stemleave(rnd(0.75, 0.85));

    for(var i=0; i<num_leaves; i++) {
        if(i==0) {
            continue;
        }
        var phi = (2 * Math.PI * i) / num_leaves;
        var dphi = (2 * Math.PI) / (num_leaves + 2) * 0.5;
        var leave = new Path(pathprops);
        flower.push(leave);
        leave.add(pos + cp(phi + rnd(-0.1, 0.1)) * leave_start *
                  rnd(0.5, 5));
        leave.add(pos + cp(phi + dphi + rnd(-0.1, 0.1)) * leave_size *
                  rnd(0.9, 1.3));
        leave.add(pos + cp(phi - dphi + rnd(-0.1, 0.1)) * leave_size *
                  rnd(0.9, 1.3));
    }
    scribblify(flower, 25);
    scribblify(flower, 25);
    scribblify(flower, 5);
};