SVG Coordinate System - points vs. pixels

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鱼传尺愫
鱼传尺愫 2021-02-20 09:35

Reading through the SVG 1.1 specification, I\'m trying to understand the relationship between the units used to define the initial viewport, and the units used throughout the re

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  • 2021-02-20 09:51

    You are correct. If the initial width/height is defined in points, and matches the viewbox declaration (which establishes ratio between user units and real sizes), then the default unit for the rest of the doc will be 1pt.

    cf: http://www.w3.org/TR/SVG/coords.html#SVGInitialUserCoordinateSystem

    (However, I should point out that your interpretation of the cubic bezier curve is not correct - the destination point is 52.75, 18.97 (aka the first two sets of coordinates specify control points, not destination point. Also note that the capital "C" denotes absolute coordinates (vs. small "c" being relative)).

    (Also, just being curious - but why are you picking points vs. pixels? That seems a little unusual unless you're planning to do interesting things with text.)

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