Team:Groningen/Modelling/Model.js
From 2009.igem.org
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maxt.sort(function(a,b){return a - b;}); | maxt.sort(function(a,b){return a - b;}); | ||
var t = 0; | var t = 0; | ||
- | var h, nt, mti = 0; | + | var h = maxt[maxt.length-1], nt, mti = 0; |
var data = {time: [0], timeKey: []}, x = {}, k1, nx, nk1, e, cont; | var data = {time: [0], timeKey: []}, x = {}, k1, nx, nk1, e, cont; | ||
for(var v in x0) { | for(var v in x0) { | ||
Line 64: | Line 64: | ||
k1 = f(t,x); | k1 = f(t,x); | ||
for(var mti=0; mti<maxt.length; mti++) { | for(var mti=0; mti<maxt.length; mti++) { | ||
- | nt = maxt[mti]; | + | nt = Math.min(t + h,maxt[mti]); |
h = nt-t; | h = nt-t; | ||
do { | do { | ||
Line 85: | Line 85: | ||
if (!cont) { | if (!cont) { | ||
alert("Advancing"); | alert("Advancing"); | ||
- | var nnt = Math.min(nt + 1. | + | var nnt = Math.min(nt + 1.1*h,maxt[mti]); |
h = nnt-nt; | h = nnt-nt; | ||
t = nt; | t = nt; |
Revision as of 12:49, 5 October 2009
function formatNumberToHTML(v,p) {
if (p===undefined) p = 5; return v.toPrecision(p) .replace(/e\+([0-9]+)$/i,'·10$1') .replace(/e\-([0-9]+)$/i,'·10-$1');
}
function setOutput(name,v,p) {
var node = document.getElementById(name); if (!node) return; node.innerHTML = formatNumberToHTML(v); node.value = v;
}
function getInput(name) {
var node = document.getElementById(name); if (!node) return undefined; return Number(node.value);
}
/*function simulate(x0,maxt,f) {
if (!maxt.length) maxt = [maxt]; maxt.sort(function(a,b){return a - b;}); var t = 0; var oh = Math.min(1,maxt[0]/2), h, nt, mti = 0; var data = {time: [0], timeKey: []}, x = {}, k1 = {}; for(var v in x0) { x[v] = x0[v]; data[v] = [x0[v]]; } do { if (t+oh>=maxt[mti]) { h = maxt[mti]-t; nt = maxt[mti]; } else { h = oh; nt = t + h; } k1 = f(t,x); for(var v in x) { x[v] += h*k1[v]; data[v].push(x[v]); } t = nt; data.time.push(t); if (t>=maxt[mti]) { data.timeKey.push(data.time.length-1); mti++; } } while(t<maxt[maxt.length-1]); return data;
}*/
function simulate(x0,maxt,f) {
if (!maxt.length) maxt = [maxt]; maxt.sort(function(a,b){return a - b;}); var t = 0; var h = maxt[maxt.length-1], nt, mti = 0; var data = {time: [0], timeKey: []}, x = {}, k1, nx, nk1, e, cont; for(var v in x0) { x[v] = x0[v]; data[v] = [x0[v]]; } k1 = f(t,x); for(var mti=0; mti<maxt.length; mti++) { nt = Math.min(t + h,maxt[mti]); h = nt-t; do { nx = {}; for(var v in x) { nx[v] = x[v] + h*k1[v]; } nk1 = f(nt,nx); cont = false; if (h>1) for(var v in x) { e = nx[v] - h*nk1[v] - x[v]; if (isNaN(e) || Math.abs(e)>(Math.abs(x[v])+Math.abs(nx[v]))*1e-3) { alert("Smaller time step"); h /= 2; nt = t + h; cont = true; break; } } if (!cont) { alert("Advancing"); var nnt = Math.min(nt + 1.1*h,maxt[mti]); h = nnt-nt; t = nt; nt = nnt; x = nx; k1 = nk1; for(var v in x) { data[v].push(x[v]); } data.time.push(t); } } while(cont || t<maxt[mti]); data.timeKey.push(data.time.length-1); } return data;
}