User:Kalevala/sandbox1

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The Sub-Templates of the Chart Template

These sub-templates are paired to draw the lines of connection between boxes in a chart. Each member of the pair is responsible for drawing two adjacent cells within a drawing table. The sub-template ending in a 't' draws the top two cells within a row of the drawing table. The sub-template ending in a 'b' draws the bottom two cells in the row of the drawing table immediately below the top two. Here we see two templates working together to draw a single square chart element (the up-side down T-shape) in a simplified drawing table. The templates are {{ Chart/cell^t  }} and {{ Chart/cell^b  }}.

DRAWING TABLE FOR ^

Draw T-Up		Left	Right
Top
Bottom

Each of the small lines within a drawing is formed by coloring in borders of the four cells in the drawing table. A close look here reveals a small gap in the horizontal line as it is being formed by adjacent drawing table cells in the top row.

There are 58 possible lines of connection used in a chart. There are 11 solid, 11 dashed, 11 dotted, 10 mixed dashed, 10 mixed dotted, four arrows and 1 blank. They require 116 sub-templates. Each shape being formed by two sub-template calls each using a single common character in their sub-template name. The user of the Chart template enters that character for the shape just once. It is inserted as a value after the pipe '|' parameter token. The chart template syntax looks like this: {{ chart|  |  |  |^ |  | ... }}.

Further documentation of the chart template is here.