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-rwxr-xr-xstatic/js/flot/jquery.flot.symbol.js71
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diff --git a/static/js/flot/jquery.flot.symbol.js b/static/js/flot/jquery.flot.symbol.js
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--- a/static/js/flot/jquery.flot.symbol.js
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-/* Flot plugin that adds some extra symbols for plotting points.
-
-Copyright (c) 2007-2013 IOLA and Ole Laursen.
-Licensed under the MIT license.
-
-The symbols are accessed as strings through the standard symbol options:
-
- series: {
- points: {
- symbol: "square" // or "diamond", "triangle", "cross"
- }
- }
-
-*/
-
-(function ($) {
- function processRawData(plot, series, datapoints) {
- // we normalize the area of each symbol so it is approximately the
- // same as a circle of the given radius
-
- var handlers = {
- square: function (ctx, x, y, radius, shadow) {
- // pi * r^2 = (2s)^2 => s = r * sqrt(pi)/2
- var size = radius * Math.sqrt(Math.PI) / 2;
- ctx.rect(x - size, y - size, size + size, size + size);
- },
- diamond: function (ctx, x, y, radius, shadow) {
- // pi * r^2 = 2s^2 => s = r * sqrt(pi/2)
- var size = radius * Math.sqrt(Math.PI / 2);
- ctx.moveTo(x - size, y);
- ctx.lineTo(x, y - size);
- ctx.lineTo(x + size, y);
- ctx.lineTo(x, y + size);
- ctx.lineTo(x - size, y);
- },
- triangle: function (ctx, x, y, radius, shadow) {
- // pi * r^2 = 1/2 * s^2 * sin (pi / 3) => s = r * sqrt(2 * pi / sin(pi / 3))
- var size = radius * Math.sqrt(2 * Math.PI / Math.sin(Math.PI / 3));
- var height = size * Math.sin(Math.PI / 3);
- ctx.moveTo(x - size/2, y + height/2);
- ctx.lineTo(x + size/2, y + height/2);
- if (!shadow) {
- ctx.lineTo(x, y - height/2);
- ctx.lineTo(x - size/2, y + height/2);
- }
- },
- cross: function (ctx, x, y, radius, shadow) {
- // pi * r^2 = (2s)^2 => s = r * sqrt(pi)/2
- var size = radius * Math.sqrt(Math.PI) / 2;
- ctx.moveTo(x - size, y - size);
- ctx.lineTo(x + size, y + size);
- ctx.moveTo(x - size, y + size);
- ctx.lineTo(x + size, y - size);
- }
- };
-
- var s = series.points.symbol;
- if (handlers[s])
- series.points.symbol = handlers[s];
- }
-
- function init(plot) {
- plot.hooks.processDatapoints.push(processRawData);
- }
-
- $.plot.plugins.push({
- init: init,
- name: 'symbols',
- version: '1.0'
- });
-})(jQuery);