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The Basics of SVG

Nodes in a Tree

Like all XML-based systems, SVG is composed of what is known as "tree-stuctured" data (nodes). Like a file-system (a similar kind of tree-structure), an SVG file must have one and only one root node (specifically, an <svg> node) but may have many other nodes "below" the root <svg> node. Each node in an SVG file which has a visible component also has a location in the 2-D SVG coordinate system.

Next Tutorial: The Coordinate System

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