May 2019
Beginner to intermediate
650 pages
14h 50m
English
Content preview from Learn D3.js
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Shapes and layouts
Shape generator functions return data strings for the <path> SVG element, which can be used to draw straight lines, Bezier curves, symbols, and arcs. Shapes are described in SVG by a path language expressed as a compact string containing letters and numbers. The letters represent commands, such as M: moveTo, L: lineTo, A: arc, and C: cubic Bezier curve. In complex shapes, a path data string can be very long.
Two examples of path data strings drawing arbitrary shapes are shown here (spaces are optional and are usually not present in generated code):
M50,20 L200,200 V140 h70 ZM100,200 C100,100 250,100 250,200 S400,300 400,200
Path data strings are used in the d (data) attribute of <path> elements, as in the following SVG ...
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