new v4 website
This commit is contained in:
Rasmus Andersson
parent
c2452dee3a
commit
2f9a256e6e
274 changed files with 6316 additions and 330038 deletions
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@ -1,683 +1,17 @@
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---
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layout: default
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title: Dynamic Metrics
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title: 404 not found
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custom_html_header: |
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<link rel="canonical" href="https://d.rsms.me/inter-website/v3/dynmetrics/">
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<meta name="robots" content="noindex">
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---
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{%
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if site.safe == false %}{%
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assign url_root = "/" %}{% else %}{%
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assign url_root = "/inter/" %}{% endif %}{%
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for file in site.static_files %}{%
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assign _path = file.path | remove_first: "/inter" %}{%
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if _path == "/dynmetrics/index.css" %}{%
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assign index_css_v = file.modified_time | date: "%Y%m%d%H%M%S" %}{%
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elsif _path == "/res/bindings.js" %}{%
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assign bindings_js_v = file.modified_time | date: "%Y%m%d%H%M%S" %}{%
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elsif _path == "/res/graphplot.js" %}{%
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assign graphplot_js_v = file.modified_time | date: "%Y%m%d%H%M%S" %}{%
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endif %}{%
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endfor
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%}
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<link rel="stylesheet" href="index.css?v={{ index_css_v }}">
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<script src="{{url_root}}res/bindings.js?v={{ bindings_js_v }}"></script>
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<script src="{{url_root}}res/graphplot.js?v={{ graphplot_js_v }}"></script>
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<div class="row first"><div>
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<h1>Dynamic Metrics</h1>
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<div class="row"><div>
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<h1>404 not found</h1>
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<p>
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There's of course no absolute right or wrong when it comes to expressing
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yourself with typography, but Inter Dynamic Metrics provides guidelines
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for how to best use Inter.
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You simply provide the optical font size,
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and the tracking and line height is calculated for you through the following
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formula:
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This page used to exist, but is no longer.<br>
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</p>
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<p>
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<formula>
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tracking =
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<const>a</const> + <const>b</const> ×
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<const title="Base of natural logarithm; ≈2.718">e</const><sup>(<const>c</const> × <const>z</const>)</sup>
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</formula>
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<!--formula>
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line height = <num data-binding="var-l">1.4</num> × <const>z</const>
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</formula-->
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<formula title="Values for Inter">
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<g><const title="Constant a">a</const> = <num data-binding="var-a">-0.0223</num></g>
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<g><const title="Constant b">b</const> = <num data-binding="var-b">0.185</num></g>
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<g><const title="Constant c">c</const> = <num data-binding="var-c">-0.1745</num></g>
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<g><const>z</const> = font size</g>
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</formula>
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</p>
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<p class="wide-window">
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The controls below can be used to play around with the
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<const>a</const>, <const>b</const> and <const>c</const> constants to discover
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how they affect tracking.
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</p>
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<p class="narrow-window">
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<small>View this on a larger screen to enable interactive control.</small>
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You can visit an archived version of the old website:
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<a href="https://d.rsms.me/inter-website/v3/dynmetrics/">https://d.rsms.me/inter-website/v3/dynmetrics/</a>
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</p>
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</div></div>
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<div class="white full-width row with-sidebar">
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<div class="samples">
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<p class="sample">
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<span class="di"><span></span></span>
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<span class="info"
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title="size, tracking, (ideal tracking) — progress bar shows distance from ideal"
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>15 0.0 ( 0.0 )</span>
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<span contenteditable spellcheck="false" class="content">
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Such a riot of sea and wind strews the whole extent of beach with whatever has been lost or thrown overboard, or torn out of sunken ships. Many a man has made a good week’s work in a single day by what he has found while walking along the Beach when the surf was down.
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</span>
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</p>
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</div>
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<div class="sidebar controls">
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<div class="control">
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<img title="Style" class="icon" src="icons/style.svg">
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<select data-binding="style">
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<option value="thin">Thin</option>
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<option value="extra-light">Extra Light</option>
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<option value="light">Light</option>
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<option value="regular" default selected>Regular</option>
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<option value="medium">Medium</option>
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<option value="semi-bold">Semi Bold</option>
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<option value="bold">Bold</option>
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<option value="extra-bold">Extra Bold</option>
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<option value="black">Black</option>
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<option disabled>————————————</option>
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<option value="thin-italic">Thin Italic</option>
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<option value="extra-light-italic">Extra Light Italic</option>
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<option value="light-italic">Light Italic</option>
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<option value="italic">Italic</option>
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<option value="medium-italic">Medium Italic</option>
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<option value="semi-bold-italic">Semi Bold Italic</option>
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<option value="bold-italic">Bold Italic</option>
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<option value="extra-bold-italic">Extra Bold Italic</option>
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<option value="black-italic">Black Italic</option>
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</select>
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</div>
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<div class="control">
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<img title="Base tracking" class="icon" src="icons/letter-spacing.svg">
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<input type="range" min="-0.05" max="0.06" step="0.001" data-binding="base-tracking">
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<input type="number" min="-0.15" max="1" step="0.001" data-binding="base-tracking">
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</div>
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<div class="control">
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<img title="Line height" class="icon" src="icons/line-height.svg">
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<input type="range" min="1" max="2" step="0.01" data-binding="var-l">
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<input type="number" min="1" max="2" step="0.01" data-binding="var-l">
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</div>
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<hr>
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<div class="control">
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<label title="Constant a">a</label>
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<input type="range" min="-0.05" max="0" step="0.001" data-binding="var-a">
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<input type="number" min="-0.05" max="0" step="0.0001" data-binding="var-a">
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</div>
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<div class="control">
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<label title="Constant b">b</label>
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<input type="range" min="0" max="1" step="0.01" data-binding="var-b">
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<input type="number" min="0" max="1" step="0.001" data-binding="var-b">
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</div>
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<div class="control">
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<label title="Constant c">c</label>
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<input type="range" min="-1" max="0" step="0.01" data-binding="var-c">
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<input type="number" min="-1" max="0" step="0.001" data-binding="var-c">
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</div>
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<hr>
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<div class="control">
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<label title="Number of ideal matches">ni</label>
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<input title="Number of ideal matches" type="number" readonly data-binding="ideal-count">
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<label title="Distance from ideal">di</label>
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<input title="Distance from ideal" type="number" class="wide" readonly data-binding="ideal-distance">
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</div>
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<hr class="without-bottom-margin">
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<canvas class="graphplot">Canvas not Supported</canvas>
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<hr class="when-selection without-top-margin">
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<h3 class="when-selection">CSS</h3>
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<textarea class="when-selection" readonly id="code-output"></textarea>
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<hr class="without-top-margin">
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<h3>Ideal values</h3>
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<textarea id="ideal-values"></textarea>
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<hr class="without-top-margin">
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</div>
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</div>
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<script type="text/javascript">(function(){
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// internal variables that are user-controllable, but are not part of
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// Dynamic Metrics
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var baseTracking = 0
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var weightClass = 400
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function round(num, prec) {
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return parseFloat(num.toFixed(prec))
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}
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// Ideal values designed one by one, by hand.
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// font size => tracking
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var idealValues = {}
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var idealValuesList = []
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var idealValuesTextArea = $('textarea#ideal-values')
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function setIdealValues(valueMap) {
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idealValues = valueMap
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idealValuesList = []
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Object.keys(idealValues).forEach(function(fontSize) {
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idealValuesList.push([fontSize, idealValues[fontSize]])
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})
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if (idealValuesTextArea.value == '') {
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idealValuesTextArea.value = idealValuesList.map(function(t){
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return t[0] + '\t' + t[1]
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}).join('\n')
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}
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}
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function parseValues(s) {
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var values = {}
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s = s.replace(/^[\s\r\t\n]+|[\s\r\t\n]+$/g, '') // trim whitespace
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s.split(/\s*\r?\n\s*/).map(function(line) {
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var t = line.split(/\s+/)
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if (t.length == 2) {
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t[0] = parseInt(t[0])
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t[1] = parseFloat(t[1])
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values[t[0]] = t[1]
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}
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})
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return values
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}
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setIdealValues({
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// // 2018
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// 6: 0.021,
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// 7: 0.017,
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// 8: 0.013,
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// 9: 0.01,
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// 10: 0.007,
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// 11: 0.005,
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// 12: 0.002,
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// 13: 0,
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// 14: -0.002,
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// 15: -0.004,
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// 16: -0.005,
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// 17: -0.007,
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// 18: -0.008,
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// 20: -0.01,
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// 24: -0.013,
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// 30: -0.016,
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// 40: -0.02,
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// 80: -0.02,
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// 2019-02-02
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// 6: 0.066,
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// 7: 0.05,
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// 8: 0.036,
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// 9: 0.025,
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// 10: 0.015,
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// 11: 0.007,
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// 12: 0,
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// 13: -0.005,
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// 14: -0.01,
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// 15: -0.014,
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// 16: -0.017,
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// 17: -0.02,
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// 18: -0.022,
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// 20: -0.026,
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// 24: -0.03,
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// 30: -0.033,
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// 40: -0.034,
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// 80: -0.034,
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// // 2019-02-06
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// 6: 0.04,
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// 7: 0.032,
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// 8: 0.024,
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// 9: 0.017,
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// 10: 0.01,
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// 11: 0.005,
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// 12: 0,
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// 13: -0.004,
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// 14: -0.008,
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// 15: -0.011,
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// 16: -0.014,
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// 17: -0.017,
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// 18: -0.019,
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// 20: -0.023,
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// 24: -0.029,
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// 30: -0.034,
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// 40: -0.037,
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// 80: -0.038,
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// 2019-02-07
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6: 0.043,
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7: 0.032,
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8: 0.024,
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9: 0.016,
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10: 0.01,
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11: 0.005,
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12: 0,
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13: -0.0025,
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14: -0.006,
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15: -0.009,
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16: -0.011,
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17: -0.013,
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18: -0.014,
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20: -0.017,
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24: -0.019,
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30: -0.021,
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40: -0.022,
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80: -0.022,
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})
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// Variables for constants involved in Dynamic Metrics
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// var a = -0.012, b = 0.23, c = -0.21; // di=0.002514 on set-2018-02-18
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// var a = -0.013, b = 0.251, c = -0.222 // di=0.001742 on set-2018-02-18
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// var a = -0.015, b = 0.283, c = -0.23; // di=0.00221 on set-2018-02-18
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// var a = -0.0149, b = 0.298, c = -0.23; // di=0.000484 on set-2018-02-19
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// var a = -0.018, b = 0.21, c = -0.18; // di=0.000532 on set-2018-02-20
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// var a = -0.017, b = 0.202, c = -0.175; // 2018-09-28
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// var a = -0.02, b = 0.0755, c = -0.102 // 2019-02-02
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// var a = -0.038, b = 0.161, c = -0.12 // 2019-02-06
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var a = -0.0223, b = 0.185, c = -0.1745 // 2019-02-07
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var l = 1.4
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// _InterDynamicTracking is a version of InterDynamicTracking that
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// uses some global variables that are adjustable.
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//
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function _InterDynamicTracking(fontSize, weightClass) {
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// Note: weightClass is currently unused
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//
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// y = -0.01021241 + 0.3720623 * e ^ (-0.2808687 * x)
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// [6-35] 0.05877 .. -0.0101309 (13==0; stops growing around 30-35)
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// See https://gist.github.com/rsms/8efdbca5f8145a584ed08a7c3d6e5788
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//
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return a + b * Math.pow(Math.E, c * fontSize)
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}
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function InterDynamicLineHeight(fontSize, weightClass) {
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return Math.round(fontSize * l)
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}
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var NPOS = Number.MAX_SAFE_INTEGER
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function Sample(fontSize) {
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this.rootEl = sampleTemplate.cloneNode(true)
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this.infoEl = $('.info', this.rootEl)
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this.contentEl = $('.content', this.rootEl)
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this.diEl = $('.di', this.rootEl)
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this.diEl.classList.add('unavailable')
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this.style = this.rootEl.style
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this.maxBoxWidth = 0
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this.fontSize = 0
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this.tracking = 0
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this.lineHeight = 0
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this.idealTracking = NPOS
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this.matchesIdeal = false
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this.setFontSize(fontSize)
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this.render()
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// listen for focus events on the editable content
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var s = this
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this.contentEl.addEventListener(
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'focus',
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function(){ s.onReceivedFocus() },
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{passive:true, capture:false}
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)
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this.contentEl.addEventListener(
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'blur',
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function(){ s.onLostFocus() },
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{passive:true, capture:false}
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)
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}
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Sample.prototype.onReceivedFocus = function() {}
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Sample.prototype.onLostFocus = function() {}
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Sample.prototype.idealDistance = function(fontSize) {
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// returns the distance from the ideal (or NPOS if no "ideal" data available)
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if (this.idealTracking == NPOS) {
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return NPOS
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}
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return (
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Math.max(this.tracking, this.idealTracking) -
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Math.min(this.tracking, this.idealTracking)
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)
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}
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Sample.prototype.setFontSize = function(fontSize) {
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this.fontSize = fontSize
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this.tracking = baseTracking + _InterDynamicTracking(fontSize, weightClass)
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this.lineHeight = InterDynamicLineHeight(fontSize, weightClass)
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this.maxBoxWidth = Math.round(fontSize * (this.tracking + 1) * 25)
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var idealTracking = idealValues[this.fontSize]
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if (idealTracking === undefined) {
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if (this.idealTracking != NPOS) {
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this.diEl.classList.add('unavailable')
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}
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this.idealTracking = NPOS
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this.matchesIdeal = false
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} else {
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if (this.idealTracking == NPOS) {
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this.diEl.classList.remove('unavailable')
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}
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this.idealTracking = idealTracking
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// match to a precision of 3
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this.matchesIdeal = this.tracking.toFixed(3) == idealTracking.toFixed(3)
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var di = 1
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if (this.matchesIdeal) {
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this.diEl.classList.add('match')
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} else {
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this.diEl.classList.remove('match')
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di = 1 - Math.min(1, this.idealDistance() * 50)
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}
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this.diEl.firstChild.style.width = (di * this.maxBoxWidth) + 'px'
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}
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}
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Sample.prototype.cssProperties = function() {
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return [
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['font-size', round(this.fontSize, 3) + 'px'],
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['letter-spacing', round(this.tracking, 3) + 'em'],
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['line-height', round(this.lineHeight, 3) + 'px'],
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]
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}
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Sample.prototype.setText = function(text) {
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this.contentEl.innerText = text
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this.render()
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}
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Sample.prototype.render = function() {
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this.style.fontSize = this.fontSize + 'px'
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this.style.letterSpacing = this.tracking + 'em'
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||||
this.style.lineHeight = this.lineHeight + 'px'
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||||
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||||
var SP = '\u00A0\u00A0\u00A0'
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this.infoEl.innerText = (
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this.fontSize +
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SP + this.tracking.toFixed(3) +
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// SP + this.lineHeight.toFixed(3) +
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(
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this.idealTracking != NPOS ? (
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SP + '( ' + this.idealTracking +
|
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(this.matchesIdeal ? ' \u2713' : '') +
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' )'
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) : ''
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||||
)
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)
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||||
this.style.maxWidth = this.maxBoxWidth + 'px'
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}
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var bindings = new Bindings()
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var samplesEl = $('.samples')
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var sampleTemplate
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||||
var samples = [] // Sample[]
|
||||
var focusedSample = null // Sample | null
|
||||
var graph = new GraphPlot($('canvas.graphplot'))
|
||||
graph.setOrigin(-0.2, 0.8)
|
||||
graph.setScale(0.049, 5)
|
||||
|
||||
function addChildren(targetNode, children) {
|
||||
targetNode.style.visibility = 'hidden'
|
||||
var i = 0;
|
||||
for (; i < children.length; i++) {
|
||||
targetNode.appendChild(children[i])
|
||||
}
|
||||
targetNode.style.visibility = null
|
||||
}
|
||||
|
||||
function initSamples() {
|
||||
sampleTemplate = $('.sample', samplesEl)
|
||||
samplesEl.removeChild(sampleTemplate)
|
||||
|
||||
// small and medium sizes
|
||||
var i, fontSize = 6, endFontSize = 16
|
||||
for (; fontSize <= endFontSize; fontSize++) {
|
||||
samples.push(new Sample(fontSize))
|
||||
}
|
||||
|
||||
// a few select large samples
|
||||
samples.push(new Sample(17))
|
||||
samples.push(new Sample(18))
|
||||
samples.push(new Sample(20))
|
||||
samples.push(new Sample(24))
|
||||
samples.push(new Sample(30))
|
||||
samples.push(new Sample(40))
|
||||
samples.push(new Sample(80))
|
||||
|
||||
// connect focus events
|
||||
var onSampleReceivedFocus = function() { setSelectedSample(this) }
|
||||
samples.forEach(function(s) {
|
||||
s.onReceivedFocus = onSampleReceivedFocus
|
||||
})
|
||||
|
||||
// add to dom in one go
|
||||
addChildren(samplesEl, samples.map(function(s) { return s.rootEl }))
|
||||
}
|
||||
|
||||
function setSelectedSample(sample) {
|
||||
if (focusedSample !== sample) {
|
||||
if (focusedSample) {
|
||||
focusedSample.rootEl.classList.remove('selected')
|
||||
}
|
||||
if (sample) {
|
||||
sample.rootEl.classList.add('selected')
|
||||
}
|
||||
focusedSample = sample
|
||||
updateSelection()
|
||||
}
|
||||
}
|
||||
|
||||
function updateSample(sample) {
|
||||
sample.setFontSize(sample.fontSize) // updates derived values
|
||||
sample.render()
|
||||
}
|
||||
|
||||
function updateSamples() {
|
||||
samples.forEach(updateSample)
|
||||
updateIdealMatches()
|
||||
updateGraphPlot()
|
||||
updateCodeView()
|
||||
}
|
||||
|
||||
function updateIdealMatches() {
|
||||
// ideal-distance
|
||||
var idealCount = 0
|
||||
var distance = 0
|
||||
var ndistances = 0
|
||||
samples.forEach(function(sample) {
|
||||
if (sample.matchesIdeal) {
|
||||
idealCount++
|
||||
}
|
||||
var di = sample.idealDistance()
|
||||
if (di != NPOS) {
|
||||
distance += di
|
||||
ndistances++
|
||||
}
|
||||
})
|
||||
|
||||
distance = distance / ndistances
|
||||
|
||||
bindings.setValue('ideal-distance', distance.toFixed(6))
|
||||
bindings.setValue('ideal-count', idealCount)
|
||||
}
|
||||
|
||||
function updateGraphPlot() {
|
||||
graph.clear()
|
||||
graph.plotLine(idealValuesList, '#0d3')
|
||||
graph.plotf(
|
||||
x => _InterDynamicTracking(x, weightClass),
|
||||
'rgba(0, 0, 0, 0.5)'
|
||||
)
|
||||
if (focusedSample) {
|
||||
var graphedFontSize = Math.min(24, focusedSample.fontSize) // clamp to [-inf,24]
|
||||
graph.plotPoints([
|
||||
[graphedFontSize, focusedSample.tracking]
|
||||
], 'rgb(45, 143, 255)')
|
||||
}
|
||||
}
|
||||
|
||||
var codeOutput = $('#code-output')
|
||||
codeOutput.addEventListener('focus', function(ev) {
|
||||
ev.preventDefault()
|
||||
ev.stopPropagation()
|
||||
codeOutput.select()
|
||||
}, {passive:false,capture:true})
|
||||
|
||||
codeOutput.addEventListener('pointerdown', function(ev) {
|
||||
// TODO: don't do this if codeOutput is focused
|
||||
ev.preventDefault()
|
||||
ev.stopPropagation()
|
||||
codeOutput.select()
|
||||
document.execCommand("copy")
|
||||
HUDNotification.show('Copied to clipboard')
|
||||
}, {passive:false,capture:true})
|
||||
|
||||
function updateCodeView() {
|
||||
var s = ''
|
||||
if (focusedSample) {
|
||||
var props = focusedSample.cssProperties()
|
||||
props.forEach(function(prop, i) {
|
||||
var name = prop[0], value = prop[1]
|
||||
s += name + ': ' + value + ';'
|
||||
if (i != props.length-1) {
|
||||
s += '\n'
|
||||
}
|
||||
})
|
||||
}
|
||||
codeOutput.value = s
|
||||
}
|
||||
|
||||
function updateSelection() {
|
||||
var controlsEl = $('.controls')
|
||||
if (focusedSample) {
|
||||
controlsEl.classList.add('has-selected-sample')
|
||||
} else {
|
||||
controlsEl.classList.remove('has-selected-sample')
|
||||
}
|
||||
|
||||
updateGraphPlot()
|
||||
updateCodeView()
|
||||
}
|
||||
|
||||
|
||||
bindings.configure('base-tracking', 0, 'float', function (tracking) {
|
||||
baseTracking = tracking
|
||||
updateSamples()
|
||||
})
|
||||
|
||||
bindings.configure('var-a', a, 'float', function (v) {
|
||||
a = v
|
||||
updateSamples()
|
||||
})
|
||||
|
||||
bindings.configure('var-b', b, 'float', function (v) {
|
||||
b = v
|
||||
updateSamples()
|
||||
})
|
||||
|
||||
bindings.configure('var-c', c, 'float', function (v) {
|
||||
c = v
|
||||
updateSamples()
|
||||
})
|
||||
|
||||
bindings.configure('var-l', l, 'float', function (v) {
|
||||
l = v
|
||||
updateSamples()
|
||||
})
|
||||
|
||||
bindings.configure('ideal-count', 0, 'int', function (v) {})
|
||||
bindings.configure('ideal-distance', 0, 'float', function (v) {})
|
||||
|
||||
bindings.configure('style', null, null, function (style) {
|
||||
var cl = samplesEl.classList
|
||||
cl.remove('font-style-regular')
|
||||
cl.remove('font-style-italic')
|
||||
cl.remove('font-style-medium')
|
||||
cl.remove('font-style-medium-italic')
|
||||
cl.remove('font-style-semi-bold')
|
||||
cl.remove('font-style-semi-bold-italic')
|
||||
cl.remove('font-style-bold')
|
||||
cl.remove('font-style-bold-italic')
|
||||
cl.remove('font-style-extra-bold')
|
||||
cl.remove('font-style-extra-bold-italic')
|
||||
cl.remove('font-style-black')
|
||||
cl.remove('font-style-black-italic')
|
||||
cl.add('font-style-' + style)
|
||||
weightClass = (
|
||||
style.indexOf('black') != -1 ? 900 :
|
||||
style.indexOf('bold') != -1 ? 700 :
|
||||
style.indexOf('medium') != -1 ? 500 :
|
||||
400
|
||||
)
|
||||
updateSamples()
|
||||
})
|
||||
|
||||
|
||||
bindings.bindAllInputs('[data-binding]')
|
||||
|
||||
// double-click base tracking to reset
|
||||
$('input[type="range"][data-binding="base-tracking"]').addEventListener(
|
||||
'dblclick',
|
||||
function(ev) { bindings.setValue('base-tracking', 0) }
|
||||
)
|
||||
|
||||
;[
|
||||
['var-a',a],
|
||||
['var-b',b],
|
||||
['var-c',c],
|
||||
['var-l',l],
|
||||
['base-tracking', 0]
|
||||
].forEach(p => {
|
||||
let bindname = p[0], defval = p[1]
|
||||
$$('input[type="range"][data-binding="'+bindname+'"]').forEach(e => {
|
||||
e.addEventListener('dblclick', ev =>
|
||||
bindings.setValue(bindname, defval))
|
||||
})
|
||||
})
|
||||
|
||||
// allow editing of ideal values
|
||||
idealValuesTextArea.addEventListener('input', function(ev) {
|
||||
setIdealValues(parseValues(idealValuesTextArea.value))
|
||||
updateSamples()
|
||||
})
|
||||
|
||||
// listen for clicks onto "background", to deselect any selected sample
|
||||
document.body.addEventListener('pointerdown', function(ev){
|
||||
if (
|
||||
ev.target === document.body ||
|
||||
ev.target === samplesEl ||
|
||||
ev.target.classList && ev.target.classList.contains('row')
|
||||
) {
|
||||
setSelectedSample(null)
|
||||
}
|
||||
})
|
||||
|
||||
|
||||
// start
|
||||
initSamples()
|
||||
updateSamples()
|
||||
|
||||
})();</script>
|
||||
|
|
|
|||
Reference in a new issue