var xzero = 20, yzero = 20;
var cold_d = [], hot_d = [];
+ function showdate(utime) {
+ var dt = new Date(utime*1000);
+ return dt.toLocaleDateString() + " " + dt.toLocaleTimeString();
+ }
+
function getcomb(lo, hi) {
var comb = [], lb = [];
var d = hi - lo;
var scl = Math.floor(d / ord);
var inc, inc2, first, x, lb;
- if (scl < 2) { inc = 0.1; inc2 = 0.5; }
- else if (scl < 5) { inc = 0.2; inc2 = 1; }
- else { inc = 0.5; inc2 = 2; }
+ if (scl < 2) { inc = 0.1; inc2 = 0.2; }
+ else if (scl < 5) { inc = 0.1; inc2 = 0.2; }
+ else { inc = 0.5; inc2 = 1; }
inc *= ord;
inc2 *= ord;
first = (Math.floor(lo / inc) + 1) * inc;
- for (x = 0; x < (d / inc) - 1.5; x++)
+ for (x = 0; x < (d / inc) - 1.2; x++)
comb.push(first + inc * x);
first = (Math.floor(lo / inc2) + 1) * inc2;
- for (x = 0; x < (d / inc2) - 1.5; x++)
+ for (x = 0; x < (d / inc2) - 1.2; x++)
lb.push(first + inc2 * x);
//dbg.innerHTML = "ord=" + ord + "<br>inc=" + inc + "<br>"
// + comb + "<br>" + lb;
ctx.lineTo(px(tmax), py(0));
ctx.strokeStyle = "black";
ctx.stroke();
+
+ ctx.fillStyle = "black";
+ ctx.font = "bold 8px Courier";
+ ctx.textAlign = "left";
+ ctx.fillText(showdate(tmin), px(tmin), py(0) + 16);
+ ctx.textAlign = "right";
+ ctx.fillText(showdate(tmax), px(tmax), py(0) + 16);
}
function yaxis() {
ctx.fillStyle = "black";
ctx.font = "bold 8px Courier";
- ctx.fillText(0, px(tmin) - 8, py(0));
+ ctx.textAlign = "right";
+ ctx.fillText(0, px(tmin) - 2, py(0));
for (i = 0; comb[1][i]; i++) {
- ctx.fillText(comb[1][i], px(tmin) - xzero + 2, py(comb[1][i]));
+ ctx.fillText(comb[1][i].toFixed(1), px(tmin) - 2, py(comb[1][i]));
}
+ ctx.textAlign = "left";
ctx.fillText("l/h", px(tmin) + 2, py(hmax) + 8);
}
res.push([times[i][0], v]);
}
}
- res.push([times[i][0], v]);
+ if (i) res.push([times[i][0], v]);
return res;
}
function showloading() {
ctx.fillStyle = "green";
ctx.font = "bold 16px Courier";
- ctx.fillText("loading", (ww / 2) - 40 , (wh / 2) + 8);
+ ctx.textAlign="center";
+ ctx.fillText("...loading...", (ww / 2) , (wh / 2) + 8);
+ }
+
+ function showempty() {
+ ctx.fillStyle = "red";
+ ctx.font = "bold 24px Courier";
+ ctx.textAlign="center";
+ ctx.fillText("No data for the requested time interval",
+ (ww / 2) , (wh / 2) + 8);
}
function clearplot() {
}
function redraw() {
- if (cold_d.length && hot_d.length) {
+ clearplot();
+ if (cold_d.length || hot_d.length) {
tfact = (ww - xzero) / (tmax - tmin);
hfact = (wh - yzero) / hmax;
- clearplot();
xaxis();
yaxis();
drawplot(cold_d, "blue");
drawplot(hot_d, "red");
} else {
- showloading();
+ showempty();
}
}
(data.current.hot / 100).toFixed(2);
tmin = data.range.lo;
tmax = data.range.hi;
+ //dbg.innerHTML = "from " + tmin + " to " + tmax
+ // + "<br>from " + showdate(tmin) + " to " + showdate(tmax);
/* differetiate() updates hmax */
hmax = 0;
cold_d = differentiate(data.cold);
}
function sendquery(lo, hi) {
- var url = "query.cgi" + "?lo=" + iso2qu(lo) + "&" + iso2qu(hi);
+ var url = "query.cgi" + "?lo=" + iso2qu(lo) + "&hi=" + iso2qu(hi);
//dbg.innerHTML = url;
xmlhttp.onreadystatechange = function() {
}
}
xmlhttp.open("GET", url, true);
+ clearplot();
+ showloading();
xmlhttp.send();
}
redraw();
}
+ function daystart(date) {
+ date.setMilliseconds(0);
+ date.setSeconds(0);
+ date.setMinutes(0);
+ date.setHours(0);
+ return date;
+ }
+
+ function prevweek() {
+ var tdy = daystart(new Date());
+ var dow = tdy.getDay();
+ var wstart, wend;
+
+ wstart = new Date(1*tdy - 86400000 * (dow + 7));
+ wend = new Date(1*wstart + 86400000 * 7);
+ xmlhttp = new XMLHttpRequest();
+ sendquery(wstart.toISOString(), wend.toISOString());
+ }
+
+ function thisweek() {
+ var tdy = daystart(new Date());
+ var dow = tdy.getDay();
+ var wstart, wend;
+
+ wstart = new Date(1*tdy - 86400000 * dow);
+ wend = new Date(1*wstart + 86400000 * 7);
+ xmlhttp = new XMLHttpRequest();
+ sendquery(wstart.toISOString(), wend.toISOString());
+ }
+
+ function beforeyesterday() {
+ var tdy = daystart(new Date());
+ var ytd = new Date(1*tdy - 86400000);
+ var byd = new Date(1*ytd - 86400000);
+ xmlhttp = new XMLHttpRequest();
+ sendquery(byd.toISOString(), ytd.toISOString());
+ }
+
+ function yesterday() {
+ var tdy = daystart(new Date());
+ var ytd = new Date(1*tdy - 86400000);
+ xmlhttp = new XMLHttpRequest();
+ sendquery(ytd.toISOString(), tdy.toISOString());
+ }
+
+ function today() {
+ var tdy = daystart(new Date());
+ var tmr = new Date(1*tdy + 86400000);
+ xmlhttp = new XMLHttpRequest();
+ sendquery(tdy.toISOString(), tmr.toISOString());
+ }
+
function initialize() {
- var tdy = new Date();
- var tmr;
-
- tdy.setMilliseconds(0);
- tdy.setSeconds(0);
- tdy.setMinutes(0);
- tdy.setHours(0);
- tmr = new Date(1*tdy + 86400000);
dbg = document.getElementById("debug");
canvas = document.getElementById("plot");
ctx = canvas.getContext("2d");
resize();
+ today();
- xmlhttp = new XMLHttpRequest();
- sendquery(tdy.toISOString(), tmr.toISOString());
+ document.getElementById("today").onclick = today;
+ document.getElementById("yesterday").onclick = yesterday;
+ document.getElementById("beforeyesterday").onclick = beforeyesterday;
+ document.getElementById("thisweek").onclick = thisweek;
+ document.getElementById("prevweek").onclick = prevweek;
}
/* Set up */
}
</script>
<style>
+@font-face {
+ font-family: PipeDream;
+ src: url('PIPED.TTF') format('truetype');
+ /* Free to use font from http://www.mlink.net/~paterson/jpfonts.htm */
+}
h1 {
+ margin-top: 5px;
text-align: center;
+ font-family: PipeDream;
+ font-size: 64px;
+ font-weight: normal;
+ background-color: lightgray;
}
br {
clear: both;
display: block;
width: 640px;
height: 320px;
+ /*border: solid 1px black;*/
+}
+div#queries {
+ margin-left: auto;
+ margin-right: auto;
+ margin-bottom: 10px;
+ text-align: center;
+}
+div.query {
+ display: inline-block;
+ width: 8em;
+ height: 8em;
border: solid 1px black;
+ background-color: lightgray;
+ cursor: pointer;
+ vertical-align: middle;
+}
+span.query {
+ display: inline-block;
+ vertical-align: middle; /* does not work for some reason */
}
body {
margin: 0px;
</style>
<title>Water Meters</title>
</head><body>
-<h1>Water Meters</h1>
+<h1>WATER METERS</h1>
<div id="currentvals">
Current Values
<div class="current" id="cold">cold</div>
<br />
<canvas id="plot" width="640" height = "320"></canvas>
<br />
-<div id=debug>
+<div id="queries">
+ <div class="query" id="prevweek"><span class="query">PREVIOUS WEEK</span></div>
+ <div class="query" id="beforeyesterday"><span class="query">DAY
+ BEFORE YESTERDAY</span></div>
+ <div class="query" id="yesterday"><span class="query">YESTERDAY</span></div>
+ <div class="query" id="today"><span class="query">TODAY</span></div>
+ <div class="query" id="thisweek"><span class="query">THIS WEEK</span></div>
</div>
+<br />
+<div id="debug"></div>
</body>
projects / pulsecounter.git / blobdiff