RGraph: Bi-polar chart documentation

The Bi-polar chart is good for comparing two things side by side. For example sales trends for two separate years, that you want to compare.

The example file is here. 

<script>
    window.onload = function ()
    {
        var left  = [5,6,8,9,12,13,4,9];
        var right = [5,8,4,11,15,26,13,16];
    
        var bipolar = new RGraph.Bipolar('myBipolar', left, right);
        bipolar.Set('chart.colors', ['#fff', '#eef', '#ddf', '#ccf', '#bbf', '#bbf', '#aaf', '#99f']);
        bipolar.Set('chart.margin', 3);
        bipolar.Set('chart.labels', ['Barry', 'John', 'Fred', 'George', 'Rich', 'Larry', 'John', 'Mike']);
        bipolar.Set('chart.title.left', '2007');
        bipolar.Set('chart.title.right', '2008');
        bipolar.Set('chart.gutter', 35);
        bipolar.Draw();
    }
</script>

Available properties

You can use these properties to control how the chart apears.

chart.margin The space above and below each bar.
Default: 2		 chart.xtickinterval The X tick mark interval.
Default: 25
chart.labels An array of the graphs labels (they go in the middle).
Default: null		 chart.text.size The size of the text used.
Default: 12
chart.title.left The left title.
Default: An empty string		 chart.title.right The right title.
Default: An empty string
chart.colors An array of colors. These too can be gradients that you make if you wish.
Default: ['#fcf', '#00f', '#f00', '#0f0', '#ff0', '#0ff', '#f0f', '#ff6101', '#b401ff', '#e4ff01', '#fb8195', '#ccc']		 chart.gutter The space given over to the labels.
Default: 25
chart.units.pre The units that are applied to the X axis labels (these are preppended to the number).
Default: none		 chart.units.post The units that are applied to the X axis labels (these are appended to the number).
Default: none
chart.tooltips A numerically indexed array of tooltips that are shown when a bar is clicked. These can contain HTML.
Default: An empty array		 chart.tooltip.effect The animated effect used for showing tooltips. Can be either fade or expand.
Default: fade
chart.shadow Turns the shadow on or off.
Default: false		 chart.shadow.color The color of the shadow.
Default: #666
chart.shadow.offsetx The horizontal offset of the shadow.
Default: 3		 chart.shadow.offsety The vertical offset of the shadow.
Default: 3
chart.shadow.blur How severe the blurring effect is for the shadow.
Default: 3		 chart.contextmenu An array of context menu items. Cannot be used in conjunction with tooltips.
Default: [] (An empty array)
chart.annotatable Whether annotations are enabled for the chart (ie you can draw on the chart interactively.
Default: false 		chart.annotate.color If you do not allow the use of the palette, then this will be the only colour allowed for annotations.
Default: black
chart.title.vpos This allows you to completely override the vertical positioning of the title. It should be a number between 0 and 1, and is multiplied with the gutter and then used as the vertical position. It can be useful if you need to have a large gutter.
Default: null 		chart.title.color The color of the title.
Default: black
chart.xmax This allows you to set the maximum X value that the chart uses, instead of it being auto-generated.
Default: null
 chart.scale.decimals This allows you to set the precision of the X labels.
Default: null

You can set these properties by using the Set() method. Eg:

myBipolar.Set('name', 'value');