inter/docs/samples/index.html

---
layout: default
title: Samples
---
{%

capture url_root
  %}{% if site.safe == false %}/{% else %}/inter/{% endif
%}{%
endcapture %}{%

for file in site.static_files %}{%
  assign _path = file.path | remove_first: "/inter" %}{%
  if _path == "/samples/index.css" %}{%
    assign index_css_v = file.modified_time | date: "%Y%m%d%H%M%S" %}{%
  elsif _path == "/res/bindings.js" %}{%
    assign bindings_js_v = file.modified_time | date: "%Y%m%d%H%M%S" %}{%
  elsif _path == "/res/graphplot.js" %}{%
    assign graphplot_js_v = file.modified_time | date: "%Y%m%d%H%M%S" %}{%
  endif %}{%
endfor

%}
<link rel="stylesheet" href="index.css?v={{ index_css_v }}">
<script src="{{url_root}}res/bindings.js?v={{ bindings_js_v }}"></script>
<script src="{{url_root}}res/graphplot.js?v={{ graphplot_js_v }}"></script>

<div class="row"><div>
  <div class="live">

    <div class="controls">
      <div class="control">
        <img title="Style" class="icon" src="icons/style.svg">
        <select data-binding="style">
          <option value="regular" default>Regular</option>
          <option value="italic">Italic</option>
          <option value="medium" default>Medium</option>
          <option value="medium-italic">Medium Italic</option>
          <option value="bold" default>Bold</option>
          <option value="bold-italic">Bold Italic</option>
          <option value="black" default>Black</option>
          <option value="black-italic">Black Italic</option>
        </select>
      </div>
      <div class="control">
        <img title="Size" class="icon" src="icons/font-size.svg">
        <input type="range" min="8" max="100" step="1" data-binding="font-size">
        <input type="number" min="4" max="400" step="1" data-binding="font-size">
      </div>
      <div class="control">
        <img title="Letter spacing in EM" class="icon" src="icons/letter-spacing.svg">
        <input type="range" min="-0.05" max="0.06" step="0.001" data-binding="letter-spacing">
        <input type="number" min="-0.15" max="1" step="0.001" data-binding="letter-spacing">
      </div>
      <canvas class="graphplot">Canvas not Supported</canvas>
      <div class="control info">
        <a href="{{url_root}}dynmetrics/">Learn about Dynamic Metrics</a>
      </div>
    </div>

    <livesample contenteditable class="s1">
      Fabulous typography encountering spring
    </livesample>

    <livesample contenteditable class="s2">
      The user interface (UI), in the industrial design field of human-computer
      interaction, is the space where interactions between humans and machines occur.
    </livesample>

    <livesample contenteditable class="s3 col3">
<p><b>Fire Island Beach</b> is a barrier of sand, stretching for twenty miles
along the south coast of Long Island, and separating the Great South Bay
from the Atlantic ocean.
</p><p>
To reach it, you must make a sail of from three to seven miles, and once
upon it, you find it a wild, desolate, solitary spot, wind-searched and
surf-pounded.
</p><p>
Its inner shore is covered with a growth of tide-wet sedge, with here
and there a spot where dry meadow comes down to make a landing-place.
</p><p>
The outline of this inner shore is most irregular, curving and bending
in and out and back upon itself, making coves and points and creeks and
channels, and often pushing out in flats with not water enough on them
at low tide to wet your ankles.
</p><p>
A third of the distance across the Beach, the meadow ends and sand
begins. This slopes gradually up for another third of the distance, to
the foot of the sand hills, which seem tumbled into their places by some
mighty power, sometimes three tiers of them deep, sometimes two, and
sometimes only one.
</p><p>
These sand hills are the most striking features of the Beach. The
biggest of them are not more than sixty feet high, yet so hard a feat is
it to climb to the top, and so extended is the view below you—on one
side the wide Bay, on the other, the ocean stretching its restless
surface to the horizon—that you feel yourself upon an elevation tenfold
as high.
</p><p>
Through these hills the wind makes a great galloping, whirling out deep
bowl-shape hollows among them, and piling the shifting sand upon their
summits. Now and then you will notice a hill with its shoulder knocked
off by the wind, and a ton of sand gone no one can tell where. In every
storm their contour changes, and yet their general formation is so
similar at all times that the change is seldom thought of. A coarse
spear-like grass finds a sparse growth upon them, and does what it can
to hold the sand in place; but it has a hard time of it, as its blades
buried to their tips or its naked roots often testify.
</p><p>
But there is one part of this Beach that is ever much the same. It is a
broad, shelving strip of sand between the hills and the sea, where the
tide rises and falls, pounding and grinding, year in and year out—the
play-ground and the battle-ground of the surf.
</p><p>
On a summer’s day, I have seen this surf so low and quiet that one could
launch a sharpie upon it, single-handed, and come ashore again without
shipping a quart of water. At other times it is a terror to look at—a
steady break of waves upon the outer bar, with row after row coming in,
rearing and plunging as they strike the shore. In such a sea there is no
launching yawl or surf-boat, and no coming ashore.
</p><p>
When the tide is on the right moon and the wind has blown a gale from
the southeast, the strand is entirely submerged, and people upon the
main shore three miles away can see the surf breaking over the Beach
hills.
</p>
    </livesample>
    <p class="learn-more">
      &nbsp;
      <!-- <a href="{{url_root}}dynmetrics/">Learn about Dynamic Metrics</a> -->
    </p>
  </div>

  <p class="sample-images">
    <img src="img/01.png" srcset="img/01@2x.png 2x" width="888">
    <img src="img/02.png" srcset="img/02@2x.png 2x" width="888">
    <!-- <img src="img/02.svg" width="888"> -->
    <img src="img/03.png" srcset="img/03@2x.png 2x" width="888">
    <img src="img/04.png" srcset="img/04@2x.png 2x" width="888">
    <img src="img/05.png" srcset="img/05@2x.png 2x" width="888">
    <img src="img/dark-phone.jpg" srcset="img/dark-phone@2x.jpg 2x" width="888">
    <img src="img/06.png" srcset="img/06@2x.png 2x" width="888">
    <img src="img/07.png" srcset="img/07@2x.png 2x" width="888">
    <img src="img/08.png" srcset="img/08@2x.png 2x" width="888">
    <img src="img/09.png" srcset="img/09@2x.png 2x" width="888">
    <img src="img/10.png" srcset="img/10@2x.png 2x" width="888">
    <img src="img/11.png" srcset="img/11@2x.png 2x" width="888">
    <img src="img/12.png" srcset="img/12@2x.png 2x" width="888">
    <img src="img/13.png" srcset="img/13@2x.png 2x" width="888">
    <img src="img/14.png" srcset="img/14@2x.png 2x" width="888">
    <img src="img/15.png" srcset="img/15@2x.png 2x" width="888">
  </p>
  <p style="text-align:center">
    <a
      href="https://www.figma.com/file/WmU5NWr52bnUcqv5os0V4sWi/"
      class="plain">Open these samples in Figma</a>
  </p>
</div></div>

<script type="text/javascript">(function(){



// InterUIDynamicTracking produces tracking in EM for the given font size
//
function InterUIDynamicTracking(fontSize, weightClass) {
  // if (!weightClass) { -- currently unused
  //   weightClass = 400
  // }
  //
  var a = -0.0149, b = 0.298, c = -0.23;
  return a + b * Math.pow(Math.E, (c * fontSize))
}

// InterUIDynamicLineHeight produces the line height for the given font size
//
function InterUIDynamicLineHeight(fontSize, weightClass) {
  var l = 1.4
  return Math.round(fontSize * l)
}


var bindings = new Bindings()
var graph = new GraphPlot($('canvas.graphplot'))
graph.setOrigin(-0.2, 0.8)
graph.setScale(0.049, 5)

var s2 = $('livesample.s2')

function updateWidth() {
  var fontSize = bindings.value('font-size', 0)
  var letterSpacing = bindings.value('letter-spacing', 0)
  var w = fontSize * (letterSpacing + 1) * 25
  s2.style.maxWidth = Math.round(w) + 'px'
}

function updateTracking() {
  var fontSize = bindings.value('font-size', 0)
  var letterSpacing = InterUIDynamicTracking(fontSize, 400)
  bindings.setValue('letter-spacing', letterSpacing)
}

function updateGraph() {
  graph.clear()
  var fontSize = bindings.value('font-size', 0)
  var letterSpacing = bindings.value('letter-spacing')
  graph.plotf(function(x) {
    return InterUIDynamicTracking(x, 400)
  })
  var graphedFontSize = Math.min(24, fontSize) // clamp to [-inf,24]
  graph.plotPoints([[graphedFontSize, letterSpacing]], '#000')
}

bindings.configure('letter-spacing', 0, 'float', function (letterSpacing) {
  s2.style.letterSpacing = letterSpacing + 'em'
  updateWidth()
  updateGraph()
})
bindings.setFormatter('letter-spacing', function(v) {
  return v.toFixed(3)
})

bindings.configure('font-size', 16, 'float', function(fontSize, prevval) {
  s2.style.fontSize = fontSize + 'px'
  updateWidth()
  updateTracking()

  var lineHeight = InterUIDynamicLineHeight(fontSize, 400)
  s2.style.lineHeight = lineHeight + 'px'
})

bindings.configure('style', null, null, function (style) {
  var cl = s2.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-bold')
  cl.remove('font-style-bold-italic')
  cl.remove('font-style-black')
  cl.remove('font-style-black-italic')
  cl.add('font-style-' + style)
})


bindings.bindAllInputs('div.live .control input')
bindings.bindAllInputs('div.live .control select')

// resize canvas when window resizes
var resizeDebounceTimer = null
window.addEventListener('resize', function(){
  clearTimeout(resizeDebounceTimer)
  resizeDebounceTimer = setTimeout(function(){
    graph.autosize()
    updateGraph()
  }, 500)
}, {passive:true, capture:false})

})();</script>