svgripper
v1.0.0-alpha.2
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Huly® Platform™ — Development Tools and Libraries
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SVGRipper
SVRG Binary Format
SVGR binary format is a compact representation of SVG paths. It is designed to be used to limit resources usage (for example in embedded systems) or in regular websites / web applications for convenient SVG managmenet, such as icons and sprite libraries. The format uses variable bit-lenght and Huffman encoding of the path segments.
Constants
| Constant | Default Value | Description | | --------------------- | ------------- | --------------------------------------- | | MAX_ABSOLUTE_BITS | 13 | Maximum bits for absolute coordinates | | FREQUENCY_BITS | 5 | Number of bits for frequency table item |
Header
[x: MAX_ABSOLUTE_BITS
,[y: MAX_ABSOLUTE_BITS]
-- ViewBox[bits: FREQUENCY_BITS]
-- Number of bits in the frequency table item, 0 means no huffman encoding used[symbols: MAX_ABSOLUTE_BITS]
-- Number of symbols in the Huffman table[frequency: bits]...
-- frequency for each symbol in the table
Path Segments
0 | 1 : 1bit
-- 0 means MoveTo relative to previous segment's initial point, 1 means MoveTo absolute coordinates- If relative, then should fit Huffman encoding, otherwise absolute coordinates
[x: MAX_ABSOLUTE_BITS]
,[y: MAX_ABSOLUTE_BITS]
-- MoveTo command[x, y]
, absolute coordinates
For each LineTo command:
[dx: HuffmanCode, dy: HuffmanCode]...
-- Huffman encoding for path segments
End of path:
[0: HuffmanCode, 0: HuffmanCode]
-- ClosePath command