Template:Brick chart/doc

Draws "brick charts" (poor man's substitute for pie charts), useful for showing percentages, seats in a legislature, etc.

Parameters

 * value1-value9 = values for each category. Values must be integers ("2"), not fractions ("1/2") or decimals ("2.1").
 * label1-label9 = labels for each category, displayed in the legend
 * color1-color9 = html colors to be used for each category, defaults to various colours
 * caption = the caption for the legend
 * total = the total number of bricks (defaults to 100)
 * stride = the number of bricks in each row, defaults to 10
 * unit = unit to display in the legend, default to %
 * width = the width of the chart in pixels, the height is calculated automatically
 * thumb = (left|right) where to thumb the chart, defaults to right

Performance considerations
The Template:Brick_chart draws the chart by using div-tags ("&lt;div>") to show colored bars for line segments of the calculated length. The template can format a brick chart within 1/6 second, so 3 brick charts could appear within a page and add only 1/2 second to reformat, or edit-preview. The initial creation of the template occurred in August 2009; however, the alignment for display problems with overlapped bars was fixed in September 2012, over 3 years later.