Animation III
From JSXGraph Wiki
The underlying JavaScript code
brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-0.2,1.2,1.2,-0.5], keepaspectratio:true});
p = [];
len = 25;
for (i=0;i<len;i++) {
p[i] = brd.create('point',[Math.random(),Math.random()],
{face:'o', size:10, strokeColor:'red', fillColor:'red', fillOpacity:0.4, strokeOpacity:0.4, withLabel:false});
}
setInterval(function(){
var i, j;
for (i=0;i<p.length;i++) {
p[i].moveTo([Math.random(),Math.random()],1000);
}
i = 0;
while (i<p.length) {
for (j=i+1;j<p.length;j++) {
if (p[i].Dist(p[j])<0.075) {
brd.removeObject(p[j]);
p.splice(j,1);
brd.removeObject(p[i]);
p.splice(i,1);
i--;
break;
}
}
i++;
}
},2000);