StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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79 lines
2.6 KiB
79 lines
2.6 KiB
4 years ago
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# font-measure [](http://github.com/badges/stability-badges)
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Calculate metrics for a font.
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[](https://npmjs.org/package/font-measure/)
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```js
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let measure = requrie('font-measure')
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measure('Roboto')
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/*
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{
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top: 0,
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median: 0.640625,
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middle: 0.640625,
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bottom: 1.3125,
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alphabetic: 1.03125,
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baseline: 1.03125,
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upper: 0.328125,
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lower: 0.515625,
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capHeight: 0.703125,
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xHeight: 0.515625
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ascent: 0.28125,
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descent: 1.234375,
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hanging: 0.203125,
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ideographic: 1.296875,
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lineHeight: 1.3125,
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overshoot: 0.015625,
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tittle: 0.28125,
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}
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*/
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```
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## API
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### `let metrics = measure(family, options?)`
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Get metrics data for a font family or [CSS font string](), possibly with custom options. Font can be a string or an array with fonts.
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#### `metrics`:
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<img src="https://github.com/dy/font-measure/raw/master/sphinx.svg?sanitize=true" width="720"/>
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#### `options`:
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Property | Default | Meaning
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---|---|---
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`origin` | `top` | Origin for metrics. Can be changed to `baseline` or any other metric.
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`fontSize` | `64` | Font-size to use for calculations. Larger size gives higher precision with slower performance.
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`fontWeight` | `normal` | Font weight to use for calculations, eg. `bold`, `700` etc.
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`fontStyle` | `normal` | Font style to use for calculations, eg. `italic`, `oblique`.
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`canvas` | `measure.canvas` | Canvas to use for measurements.
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`tittle` | `i` | Character to detect tittle. `null` disables calculation.
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`descent` | `p` | Character to detect descent line. `null` disables calculation.
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`ascent` | `h` | Character to detect ascent line. `null` disables calculation.
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`overshoot` | `O` | Character to detect overshoot. `null` disables calculation.
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`upper` | `H` | Character to detect upper line / cap-height. `null` disables calculation.
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`lower` | `x` | Character to detect lower line / x-height. `null` disables calculation.
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## See also
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* [optical-properties](https://ghub.io/optical-properties) − calculate image/character optical center and bounding box.
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* [detect-kerning](https://ghub.io/detect-kerning) − calculate kerning pairs for a font.
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## Related
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There are many text / font measuring packages for the moment, but most of them don't satisfy basic quality requirements. Special thanks to @soulwire
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for [fontmetrics](https://ghub.io/fontmetrics) as model implementation.
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## License
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© 2018 Dima Yv. MIT License
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Development supported by plot.ly.
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