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fgdata/Phi/lib/jquery.flot.prop.js
Torsten Dreyer 190e8449ce Phi: move URL to the browsers root directory
- rename the directory from webgui to Phi
- let the webserver's root point to Phi instead of Docs
- redirect old /gui/ url to the new location (/)
2015-04-18 13:03:46 +02:00

86 lines
2.2 KiB
JavaScript

(function ($) {
function init(plot) {
function optionProcessor(plot, options) {
}
plot.hooks.processOptions.push(optionProcessor);
var presample = { x: 0, y: 0, n: 0 };
plot.plotPropertyNode = function(n) {
var maxData = Math.floor(this.width() / 2);
if( maxData < 10 ) return;
var probeWidth = this.getOptions().historyLength / maxData;
var x = Math.floor(n.ts/probeWidth)*probeWidth;
var y = n.value * 1.0;
// first call
if( presample.n == 0 ) {
presample.x = x;
}
// same period as previous call?
if( x == presample.x ) {
// sum up the sample
presample.y += y;
presample.n++;
return;
}
var sampledY = presample.y/presample.n;
var sampledX = presample.x;
// start sample next period
presample.x = x;
presample.y = y;
presample.n = 1;
var series = this.getData();
var data;
for( var seriesNumber = 0;
seriesNumber < series.length;
seriesNumber++ ) {
if( n.path == series[seriesNumber].propertyPath ) {
data = series[seriesNumber].data;
break;
}
}
if( ! data ) return;
data.push([sampledX, sampledY]);
var toomany = data.length - maxData;
if (toomany > 0) {
// slice returns a new array, so set series data
series[seriesNumber].data = data.slice(toomany);;
}
this.setData(series);
if( data.length >= 2 ) {
var xaxis = this.getAxes().xaxis;
var v = Math.ceil(data[data.length-1][0]);
v = Math.ceil(v/5)*5;
xaxis.options.max = v;
xaxis.options.min = xaxis.options.max - this.getOptions().historyLength;
var yaxis = this.getAxes().yaxis;
yaxis.options.min = Math.floor(yaxis.datamin);
yaxis.options.max = Math.ceil(yaxis.datamax);
this.setupGrid();
}
this.draw();
}
}
var options = { historyLength: 60 };
$.plot.plugins.push({
init: init,
options: options,
name: "propflot",
version: "0.1"
});
})(jQuery);