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source: branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/jqplot/src/jqplot.linearTickGenerator.js @ 14777

Last change on this file since 14777 was 9062, checked in by fschoepp, 12 years ago

#1888:
Backend changes:

  • Simplified job state detection (only one hive call will be made to detect all states now, instead of one additional call per job)
  • Reorganized classes (moved model classes into Model folder)

Website changes:

  • Website now heavily uses JavaScript to achieve better user experience
  • JavaScript degrades gracefully, except for plots
  • Tables: Added jquery-datatable-plugin to extend tables (pagination + search functionality)
  • OaaS-Website now uses the design of the HL websites (found in WebApplication branch)
  • Added jqplot to render zoomable line plots for HL-Datatables
  • Styling.js: Plots will be generated by using an ajax call; additional jquery-styling occurs within this file.
  • Added jquery-ui-1.9.2 which is capable of handling/rendering tabs, accordions and resizers.
File size: 4.7 KB
RevLine 
[9062]1/**
2 * jqPlot
3 * Pure JavaScript plotting plugin using jQuery
4 *
5 * Version: @VERSION
6 *
7 * Copyright (c) 2009-2011 Chris Leonello
8 * jqPlot is currently available for use in all personal or commercial projects
9 * under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
10 * version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
11 * choose the license that best suits your project and use it accordingly.
12 *
13 * Although not required, the author would appreciate an email letting him
14 * know of any substantial use of jqPlot.  You can reach the author at:
15 * chris at jqplot dot com or see http://www.jqplot.com/info.php .
16 *
17 * If you are feeling kind and generous, consider supporting the project by
18 * making a donation at: http://www.jqplot.com/donate.php .
19 *
20 * sprintf functions contained in jqplot.sprintf.js by Ash Searle:
21 *
22 *     version 2007.04.27
23 *     author Ash Searle
24 *     http://hexmen.com/blog/2007/03/printf-sprintf/
25 *     http://hexmen.com/js/sprintf.js
26 *     The author (Ash Searle) has placed this code in the public domain:
27 *     "This code is unrestricted: you are free to use it however you like."
28 *
29 */
30(function($) {
31    /**
32    * The following code was generaously given to me a while back by Scott Prahl.
33    * He did a good job at computing axes min, max and number of ticks for the
34    * case where the user has not set any scale related parameters (tickInterval,
35    * numberTicks, min or max).  I had ignored this use case for a long time,
36    * focusing on the more difficult case where user has set some option controlling
37    * tick generation.  Anyway, about time I got this into jqPlot.
38    * Thanks Scott!!
39    */
40   
41    /**
42    * Copyright (c) 2010 Scott Prahl
43    * The next three routines are currently available for use in all personal
44    * or commercial projects under both the MIT and GPL version 2.0 licenses.
45    * This means that you can choose the license that best suits your project
46    * and use it accordingly.
47    */
48
49    // A good format string depends on the interval. If the interval is greater
50    // than 1 then there is no need to show any decimal digits. If it is < 1.0, then
51    // use the magnitude of the interval to determine the number of digits to show.
52    function bestFormatString (interval)
53    {
54        interval = Math.abs(interval);
55        if (interval > 1) {return '%d';}
56
57        var expv = -Math.floor(Math.log(interval)/Math.LN10);
58        return '%.' + expv + 'f';
59    }
60
61    // This will return an interval of form 2 * 10^n, 5 * 10^n or 10 * 10^n
62    function bestLinearInterval(range, scalefact) {
63        var expv = Math.floor(Math.log(range)/Math.LN10);
64        var magnitude = Math.pow(10, expv);
65        // 0 < f < 10
66        var f = range / magnitude;
67        // console.log('f: %s, scaled: %s ', f, f/scalefact);
68        // for large plots, scalefact will decrease f and increase number of ticks.
69        // for small plots, scalefact will increase f and decrease number of ticks.
70        f = f/scalefact;
71
72        // for large plots, smaller interval, more ticks.
73        if (f<=0.38) {return 0.1*magnitude;}
74        if (f<=1.6) {return 0.2*magnitude;}
75        if (f<=4.0) {return 0.5*magnitude;}
76        if (f<=8.0) {return magnitude;}
77        // for very small plots, larger interval, less ticks in number ticks
78        if (f<=16.0) {return 2*magnitude;}
79        return 5*magnitude;
80    }
81
82    // Given the min and max for a dataset, return suitable endpoints
83    // for the graphing, a good number for the number of ticks, and a
84    // format string so that extraneous digits are not displayed.
85    // returned is an array containing [min, max, nTicks, format]
86    $.jqplot.LinearTickGenerator = function(axis_min, axis_max, scalefact) {
87        // if endpoints are equal try to include zero otherwise include one
88        if (axis_min == axis_max) {
89        axis_max = (axis_max) ? 0 : 1;
90        }
91
92        scalefact = scalefact || 1.0;
93
94        // make sure range is positive
95        if (axis_max < axis_min) {
96        var a = axis_max;
97        axis_max = axis_min;
98        axis_min = a;
99        }
100
101        var ss = bestLinearInterval(axis_max - axis_min, scalefact);
102        var r = [];
103
104        // Figure out the axis min, max and number of ticks
105        // the min and max will be some multiple of the tick interval,
106        // 1*10^n, 2*10^n or 5*10^n.  This gaurantees that, if the
107        // axis min is negative, 0 will be a tick.
108        r[0] = Math.floor(axis_min / ss) * ss;  // min
109        r[1] = Math.ceil(axis_max / ss) * ss;   // max
110        r[2] = Math.round((r[1]-r[0])/ss+1.0);    // number of ticks
111        r[3] = bestFormatString(ss);            // format string
112        r[4] = ss;                              // tick Interval
113        return r;
114    };
115
116})(jQuery);
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