<html xml:lang="en" lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
- var canvas;
- var ctx;
- var ww;
- var wh;
- var hmax = 0;
- var hfact;
- var tmin;
- var tmax;
- var tfact;
- var xzero = 20;
- var yzero = 20;
+ var dbg;
+ var xmlhttp;
+ var canvas, ctx;
+ var ww, wh;
+ var hmax, hfact;
+ var tmin, tmax, tfact;
+ var xzero = 20, yzero = 20;
+ var cold_d = [], hot_d = [];
+
function px(x) {
return xzero + ((x - tmin) * tfact);
}
ctx.strokeStyle = "black";
ctx.stroke();
}
- function differentiate(times) { /* updates glbal hmax */
+ /* @ updates global var `hmax` */
+ function differentiate(times) {
var res = [];
var dv, dt, v;
ctx.strokeStyle = color;
ctx.stroke();
}
- function gotdata(data) {
- var cold_d = [], hot_d = [];
+ function gotdata(data) {
document.getElementById("cold").innerHTML =
(data.current.cold / 100).toFixed(2);
document.getElementById("hot").innerHTML =
tmin = data.range.lo;
tmax = data.range.hi;
tfact = (ww - xzero) / (tmax - tmin);
+ /* differetiate() updates hmax */
+ hmax = 0;
cold_d = differentiate(data.cold);
hot_d = differentiate(data.hot);
- /* differetiate() updates hmax */
hfact = (wh - yzero) / hmax;
- document.getElementById("debug").innerHTML.append("<br>" ++ cold_d + "<br>" + hot_d);
+ //document.getElementById("debug").innerHTML = cold_d + "<br>" + hot_d;
drawplot(cold_d, "blue");
drawplot(hot_d, "red");
xaxis();
yaxis();
}
+
+ function sendquery(lo, hi) {
+ var url = "query.cgi";
+
+ if (lo && hi) url += "?lo=" + lo + "&" + hi;
+ else url = "query.cgi?lo=2015-12-19+00:00:00&hi=2015-12-20+00:00:00"; //FIX
+ xmlhttp.onreadystatechange = function() {
+ if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
+ // dbg.innerHTML = xmlhttp.responseText;
+ var myData = JSON.parse(xmlhttp.responseText);
+ gotdata(myData);
+ }
+ }
+ xmlhttp.open("GET", url, true);
+ xmlhttp.send();
+ }
+
+ function initialize() {
+ dbg = document.getElementById("debug");
+ xmlhttp = new XMLHttpRequest();
+ sendquery();
+ }
+
+ /* Set up */
+ if(window.attachEvent) {
+ window.attachEvent('onload', initialize);
+ } else {
+ window.onload = initialize;
+ }
</script>
<style>
h1 {
<br />
<div id=debug>
</div>
-<script>
- var xmlhttp = new XMLHttpRequest();
- var url = "query.cgi";
- var qstr = "?lo=2015-12-19+00:00:00&hi=2015-12-20+00:00:00";
-
- xmlhttp.onreadystatechange = function() {
- if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
- document.getElementById("debug").innerHTML = xmlhttp.responseText;
- var myData = JSON.parse(xmlhttp.responseText);
- gotdata(myData);
- }
- }
- xmlhttp.open("GET", url+qstr, true);
- xmlhttp.send();
-</script>
</body>
projects / pulsecounter.git / commitdiff