File size: 4,772 Bytes
bc63d7d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | /**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: @VERSION
* Revision: @REVISION
*
* Copyright (c) 2009-2013 Chris Leonello
* jqPlot is currently available for use in all personal or commercial projects
* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
* choose the license that best suits your project and use it accordingly.
*
* Although not required, the author would appreciate an email letting him
* know of any substantial use of jqPlot. You can reach the author at:
* chris at jqplot dot com or see http://www.jqplot.com/info.php .
*
* If you are feeling kind and generous, consider supporting the project by
* making a donation at: http://www.jqplot.com/donate.php .
*
* sprintf functions contained in jqplot.sprintf.js by Ash Searle:
*
* version 2007.04.27
* author Ash Searle
* http://hexmen.com/blog/2007/03/printf-sprintf/
* http://hexmen.com/js/sprintf.js
* The author (Ash Searle) has placed this code in the public domain:
* "This code is unrestricted: you are free to use it however you like."
*
*/
/**
* The following dashed line support contributed by Cory Sharp.
* After I implemented an inferior method, Cory responded with a generous
* contribution of code and input which proved a more powerful and
* elegant solution.
*/
(function($) {
var dotlen = 0.1;
$.jqplot.LinePattern = function (ctx, pattern) {
var defaultLinePatterns = {
dotted: [ dotlen, $.jqplot.config.dotGapLength ],
dashed: [ $.jqplot.config.dashLength, $.jqplot.config.gapLength ],
solid: null
};
if (typeof pattern === 'string') {
if (pattern[0] === '.' || pattern[0] === '-') {
var s = pattern;
pattern = [];
for (var i=0, imax=s.length; i<imax; i++) {
if (s[i] === '.') {
pattern.push( dotlen );
}
else if (s[i] === '-') {
pattern.push( $.jqplot.config.dashLength );
}
else {
continue;
}
pattern.push( $.jqplot.config.gapLength );
}
}
else {
pattern = defaultLinePatterns[pattern];
}
}
if (!(pattern && pattern.length)) {
return ctx;
}
var patternIndex = 0;
var patternDistance = pattern[0];
var px = 0;
var py = 0;
var pathx0 = 0;
var pathy0 = 0;
var moveTo = function (x, y) {
ctx.moveTo( x, y );
px = x;
py = y;
pathx0 = x;
pathy0 = y;
};
var lineTo = function (x, y) {
var scale = ctx.lineWidth;
var dx = x - px;
var dy = y - py;
var dist = Math.sqrt(dx*dx+dy*dy);
if ((dist > 0) && (scale > 0)) {
dx /= dist;
dy /= dist;
while (true) {
var dp = scale * patternDistance;
if (dp < dist) {
px += dp * dx;
py += dp * dy;
if ((patternIndex & 1) == 0) {
ctx.lineTo( px, py );
}
else {
ctx.moveTo( px, py );
}
dist -= dp;
patternIndex++;
if (patternIndex >= pattern.length) {
patternIndex = 0;
}
patternDistance = pattern[patternIndex];
}
else {
px = x;
py = y;
if ((patternIndex & 1) == 0) {
ctx.lineTo( px, py );
}
else {
ctx.moveTo( px, py );
}
patternDistance -= dist / scale;
break;
}
}
}
};
var beginPath = function () {
ctx.beginPath();
};
var closePath = function () {
lineTo( pathx0, pathy0 );
};
return {
moveTo: moveTo,
lineTo: lineTo,
beginPath: beginPath,
closePath: closePath
};
};
})(jQuery); |