7f25fd7dc9
Summary: Fixes T1325. This has the advantage of not having to do the mapping manually. Also it means that characters like \neq are included in the mapping, so this resolves T1323 as well. I opted to group the metrics by character instead of by metric type because I think it'll gzip better and it makes getCharacterMetrics simpler anyway. Test Plan: The test page looks identical to the pixel to my eye. Reviewers: emily Reviewed By: emily Maniphest Tasks: T1323, T1325 Differential Revision: http://phabricator.khanacademy.org/D3535
77 lines
22 KiB
JavaScript
77 lines
22 KiB
JavaScript
// These font metrics are extracted from TeX
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var sigma1 = 0.025;
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var sigma2 = 0;
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var sigma3 = 0;
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var sigma4 = 0;
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var sigma5 = 0.431;
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var sigma6 = 1;
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var sigma7 = 0;
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var sigma8 = 0.677;
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var sigma9 = 0.394;
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var sigma10 = 0.444;
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var sigma11 = 0.686;
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var sigma12 = 0.345;
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var sigma13 = 0.413;
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var sigma14 = 0.363;
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var sigma15 = 0.289;
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var sigma16 = 0.150;
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var sigma17 = 0.247;
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var sigma18 = 0.386;
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var sigma19 = 0.050;
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var sigma20 = 2.390;
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var sigma21 = 0.101;
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var sigma22 = 0.250;
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var xi1 = 0;
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var xi2 = 0;
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var xi3 = 0;
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var xi4 = 0;
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var xi5 = .431;
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var xi6 = 1;
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var xi7 = 0;
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var xi8 = .04;
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var xi9 = .111;
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var xi10 = .166;
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var xi11 = .2;
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var xi12 = .6;
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var xi13 = .1;
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// This is just a mapping from common names to real metrics
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var metrics = {
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xHeight: sigma5,
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quad: sigma6,
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num1: sigma8,
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num2: sigma9,
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num3: sigma10,
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denom1: sigma11,
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denom2: sigma12,
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sup1: sigma13,
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sup2: sigma14,
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sup3: sigma15,
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sub1: sigma16,
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sub2: sigma17,
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supDrop: sigma18,
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subDrop: sigma19,
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delim1: sigma20,
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delim2: sigma21,
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axisHeight: sigma22,
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defaultRuleThickness: xi8,
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bigOpSpacing1: xi9,
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bigOpSpacing2: xi10,
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bigOpSpacing3: xi11,
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bigOpSpacing4: xi12,
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bigOpSpacing5: xi13
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};
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// This map is generated by metric_parse.rb
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var metricMap = 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|
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|
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var getCharacterMetrics = function(character, style) {
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return metricMap[style][character.charCodeAt(0)];
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};
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module.exports = {
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metrics: metrics,
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getCharacterMetrics: getCharacterMetrics
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};
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