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add templates for plugins: Google gauge and multiline charts

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This commit is contained in:
Lee Lawlor
2014-10-14 19:47:57 -04:00
parent f1b6f67323
commit ee05bbd102
17 changed files with 479 additions and 31 deletions
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5
app/views/plugins/templates/chart.css Normal file
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<style type="text/css">
body { background-color: white; height: 100%; margin: 0; padding: 0; }
#chart-container { width: 425px; height: 235px; display: block; position:absolute; bottom:0; top:0; left:0; right:0; margin: 5px 15px 15px 0; overflow: hidden; }
</style>

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app/views/plugins/templates/chart.html Normal file
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<!DOCTYPE html>
<html style="height: 100%;">
<head>
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="//thingspeak.com/highcharts-3.0.8.js"></script>
<script type="text/javascript" src="//thingspeak.com/exporting.js"></script>
%%PLUGIN_CSS%%
%%PLUGIN_JAVASCRIPT%%
</head>
<body>
<div id="chart-container">
<img alt="Ajax loader" src="/assets/ajax-loader.gif" style="position: absolute; margin: auto; top: 0; left: 0; right: 0; bottom: 0;" />
</div>
</body>
</html>

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app/views/plugins/templates/chart.js Normal file
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<script type="text/javascript">
// variables for the first series
var series_1_channel_id = 9;
var series_1_field_number = 1;
var series_1_read_api_key = '';
var series_1_results = 10;
var series_1_color = '#d62020';
// variables for the second series
var series_2_channel_id = 9;
var series_2_field_number = 2;
var series_2_read_api_key = '';
var series_2_results = 10;
var series_2_color = '#00aaff';
// chart title
var chart_title = 'Light & Temperature';
// y axis title
var y_axis_title = 'Values';
// user's timezone offset
var my_offset = new Date().getTimezoneOffset();
// chart variable
var my_chart;
// when the document is ready
$(document).on('ready', function() {
// add a blank chart
addChart();
// add the first series
addSeries(series_1_channel_id, series_1_field_number, series_1_read_api_key, series_1_results, series_1_color);
// add the second series
addSeries(series_2_channel_id, series_2_field_number, series_2_read_api_key, series_2_results, series_2_color);
});
// add the base chart
function addChart() {
// variable for the local date in milliseconds
var localDate;
// specify the chart options
var chartOptions = {
chart: {
renderTo: 'chart-container',
defaultSeriesType: 'line',
backgroundColor: '#ffffff',
events: { }
},
title: { text: chart_title },
plotOptions: {
series: {
marker: { radius: 3 },
animation: true,
step: false,
borderWidth: 0,
turboThreshold: 0
}
},
tooltip: {
// reformat the tooltips so that local times are displayed
formatter: function() {
var d = new Date(this.x + (my_offset*60000));
var n = (this.point.name === undefined) ? '' : '<br>' + this.point.name;
return this.series.name + ':<b>' + this.y + '</b>' + n + '<br>' + d.toDateString() + '<br>' + d.toTimeString().replace(/\(.*\)/, "");
}
},
xAxis: {
type: 'datetime',
title: { text: 'Date' }
},
yAxis: { title: { text: y_axis_title } },
exporting: { enabled: false },
legend: { enabled: false },
credits: {
text: 'ThingSpeak.com',
href: 'https://thingspeak.com/',
style: { color: '#D62020' }
}
};
// draw the chart
my_chart = new Highcharts.Chart(chartOptions);
}
// add a series to the chart
function addSeries(channel_id, field_number, api_key, results, color) {
var field_name = 'field' + field_number;
// get the data with a webservice call
$.getJSON('https://api.thingspeak.com/channels/' + channel_id + '/fields/' + field_number + '.json?offset=0&round=2&results=' + results + '&api_key=' + api_key, function(data) {
// blank array for holding chart data
var chart_data = [];
// iterate through each feed
$.each(data.feeds, function() {
var point = new Highcharts.Point();
// set the proper values
var value = this[field_name];
point.x = getChartDate(this.created_at);
point.y = parseFloat(value);
// add location if possible
if (this.location) { point.name = this.location; }
// if a numerical value exists add it
if (!isNaN(parseInt(value))) { chart_data.push(point); }
});
// add the chart data
my_chart.addSeries({ data: chart_data, name: data.channel[field_name], color: color });
});
}
// converts date format from JSON
function getChartDate(d) {
// get the data using javascript's date object (year, month, day, hour, minute, second)
// months in javascript start at 0, so remember to subtract 1 when specifying the month
// offset in minutes is converted to milliseconds and subtracted so that chart's x-axis is correct
return Date.UTC(d.substring(0,4), d.substring(5,7)-1, d.substring(8,10), d.substring(11,13), d.substring(14,16), d.substring(17,19)) - (my_offset * 60000);
}
</script>

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app/views/plugins/templates/default.css Normal file
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<style type="text/css">
body { background-color: #ddd; }
</style>

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app/views/plugins/templates/default.html Normal file
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<html>
<head>
%%PLUGIN_CSS%%
%%PLUGIN_JAVASCRIPT%%
</head>
<body>
my plugin
</body>
</html>

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app/views/plugins/templates/default.js Normal file
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<script type="text/javascript">
document.write('<div>javascript active</div>');
</script>

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app/views/plugins/templates/gauge.css Normal file
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<style type="text/css">
body { background-color: #ddd; }
#container { height: 100%; width: 100%; display: table; }
#inner { vertical-align: middle; display: table-cell; }
#gauge_div { width: 120px; margin: 0 auto; }
</style>

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app/views/plugins/templates/gauge.html Normal file
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<html>
<head>
<title>Google Gauge - ThingSpeak</title>
%%PLUGIN_CSS%%
%%PLUGIN_JAVASCRIPT%%
</head>
<body>
<div id="container">
<div id="inner">
<div id="gauge_div"></div>
</div>
</div>
</body>
</html>

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app/views/plugins/templates/gauge.js Normal file
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<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js'></script>
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'>
// set your channel id here
var channel_id = 9;
// set your channel's read api key here if necessary
var api_key = '';
// maximum value for the gauge
var max_gauge_value = 1023;
// name of the gauge
var gauge_name = 'Light Level';
// global variables
var chart, charts, data;
// load the google gauge visualization
google.load('visualization', '1', {packages:['gauge']});
google.setOnLoadCallback(initChart);
// display the data
function displayData(point) {
data.setValue(0, 0, gauge_name);
data.setValue(0, 1, point);
chart.draw(data, options);
}
// load the data
function loadData() {
// variable for the data point
var p;
// get the data from thingspeak
$.getJSON('https://api.thingspeak.com/channels/' + channel_id + '/feed/last.json?api_key=' + api_key, function(data) {
// get the data point
p = data.field1;
// if there is a data point display it
if (p) {
p = Math.round((p / max_gauge_value) * 100);
displayData(p);
}
});
}
// initialize the chart
function initChart() {
data = new google.visualization.DataTable();
data.addColumn('string', 'Label');
data.addColumn('number', 'Value');
data.addRows(1);
chart = new google.visualization.Gauge(document.getElementById('gauge_div'));
options = {width: 120, height: 120, redFrom: 90, redTo: 100, yellowFrom:75, yellowTo: 90, minorTicks: 5};
loadData();
// load new data every 15 seconds
setInterval('loadData()', 15000);
}
</script>