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- (function ($) {
- function processRawData(plot, series, datapoints) {
-
-
- var handlers = {
- square: function (ctx, x, y, radius, shadow) {
-
- 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) {
-
- 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) {
-
- 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) {
-
- 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);
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