Template:Brick chart - Wikipedia

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Draws a "brick chart" (square alternative to pie charts) as a rectangular-box chart with brick segments inside, useful for showing percentages, seats in a legislature, etc.

Template parameters[Edit template data]
Parameter		Description	Type	Status
Alignment	`thumb`	Align graph to left or right of page (floating), centre it, or no alignment option. Suggested values `left` `right` `none` `center`	String	optional
Style	`style`	Additional CSS for container	String	optional
Width	`width`	Width in pixels Default 180	Number	optional
Total	`total`	The total number of bricks (defaults to 100) Default 100	Number	optional
Stride	`stride`	The number of bricks in each row, defaults to 10. Default 10	Number	optional
Value 1	`value1`	Values for each brick. Values can be integers, decimals ("2.4"), formulas, or use '+' in mixed number fractions ("3+1/2").	Unknown	required
Brick size	`brick_size`	Value represented by one brick - defaults to one.	Number	optional
Colour 1	`color1`	CSS colour of each brick, defaults to various colours. E.g. red, blue, #893. Default red	Unknown	optional
Value 2	`value2`	no description	Unknown	required
Colour 2	`color2`	no description Default green	String	optional
value3	`value3`	no description	Unknown	optional
Color 3	`color3`	no description Default blue	Unknown	optional
value4	`value4`	no description	Unknown	optional
Color 4	`color4`	no description Default yellow	Unknown	optional
value5	`value5`	no description	Unknown	optional
Color 5	`color5`	no description Default magenta	Unknown	optional
value6	`value6`	no description	Unknown	optional
Color 6	`color6`	no description Default cyan	Unknown	optional
value7	`value7`	no description	Unknown	optional
Color 7	`color7`	no description Default brown	Unknown	optional
value8	`value8`	no description	Unknown	optional
Color 8	`color8`	no description Default orange	Unknown	optional
value9	`value9`	no description	Unknown	optional
Color 9	`color9`	no description Default purple	Unknown	optional
Caption	`caption`	no description	Line	optional
Legend margin	`legend_margin`	A CSS margin value to override the default	String	optional
Label 1	`label1`	Legend label for the first brick.	Line	required
Unit	`unit`	Unit to display in the legend, default to %	String	optional
Label 2	`label2`	no description	Line	suggested
Label 3	`label3`	no description	Line	suggested
Label 4	`label4`	no description	Line	suggested
Label 5	`label5`	no description	Line	suggested
Label 6	`label6`	no description	Line	suggested
Label 7	`label7`	no description	Line	suggested
Label 8	`label8`	no description	Line	suggested
Label 9	`label9`	no description	Line	suggested
"Other" label	`other`	Legend for the leftover space in the graph, defaults to "Other".	Line	optional

Example of 6 amounts

one - 42 %

two - 32 %

three - 12 %

four - 3 %

five - 2 %

six - 0.4 %

Other - 8.6 %

The following 2 examples have numbers in the range of 0-100 units, as percentages. The total is assumed as total=100, to calculate the "other" amount by subtracting all brick values from 100.

{{Brick chart
| caption=Example of 6 amounts
| value1=42 | label1=one
| value2=32 | label2=two
| value3=12 | label3=three
| value4=3 | label4=four
| value5=2 | label5=five
| value6=0.4 | label6=six
}}

Note how the bottom value, value6=0.4, generates a "tiny sliver" of a brick, and the calculated remainder, the "other" value is also a decimal amount as 8.6.

The brick colours use the defaults: red, dark green, blue, yellow, purple, and cyan, as the first 6 hues. The next example, below, shows use of some colour parameters by setting: color1, color2, color3.

Religion in the Czech Republic

{{Brick chart
| caption=Religion in the Czech Republic
| label1 = [[Atheist]]s / [[agnostic]]s
  | value1 = 59 | color1 = silver
| label2 = [[Catholic Church|Catholics]]
  | value2 = 26.8 | color2 = #008
| label3 = [[Protestantism|Protestants]]
  | value3 = 2.5 | color3 = #08f
| legend_margin=0 0 0 6px
}}

The 2nd example, for Religion in the Czech Republic, shows the use of indented parameters for the value/color under each label phrase. The color #008 (for "Catholic") is a hexadecimal code for dark blue, using RGB notation, where the 3rd digit "8" is half of blue intensity levels, 0-F.

It is customary to list the larger percentages first, in a table; however, the numbers can be displayed in any order as needed for the text on a page. A small decimal amount, such as 0.4, will show a tiny sliver among the various brick bars.

The option "legend_margin=0 0 0 6px" resets the alignment of the legend boxes, as only 6 pixels from the left margin (default: 3px 0 0 10px).

Seats in the German federal parliament

Larger amounts: The following example has numbers in the range of 0-300 units, as counts. The total is set to total=614. The options stride=20 and brick_size=2.6 scale the bar line segments to fit within the box, rather than 6x times larger, as 614 compared to 100.

{{Brick chart
|caption = Seats in the German federal parliament
|total = 614
|unit = seats
|stride = 20
|brick_size=2.6
|label1=[[Christian Democratic Union (Germany)
     |Christian Democratic Union]]
  | color1=black
  | value1=180
|label2=[[Christian Social Union of Bavaria]]
  | color2=#ccf
  | value2=46
|label3=[[Social Democratic Party of Germany]]
  | color3=red
  | value3=222
|label4=[[Free Democratic Party]]
  | color4=yellow
  | value4=61
|label5=[[The Left Party.PDS]]
  | color5=#800
  | value5=54
|label6=[[Alliance '90/The Greens]]
  | color6=green
  | value6=51
}}

Performance considerations

edit

The Template:Brick_chart draws the chart by using div-tags ("<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.

{{Pie chart}}