SOURCE CODE: Fade Quantization Chart
VIEW EXAMPLE

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  <title>Fade Quantization Chart | JavaScript Examples | UIZE JavaScript Framework</title>
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  <meta name="description" content="See how different values for the quantization property affect a fade with this visualization using color gradients for different quantization values."/>
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  <style type="text/css">
    .chartSegment {
      width:7px;
      height:16px;
      margin-bottom:1px;
    }
    table.paramsTable td {
      padding:0;
      border:none;
    }
    table.paramsTable td.fieldLabel {
      font-size:11px;
      padding:0 5px;
    }
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    <a href="../javascript-examples.html" class="breadcrumb breadcrumbWithArrow">JAVASCRIPT EXAMPLES</a>
    Fade Quantization Chart
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  <!-- explanation copy -->

  <div class="explanation">
    <p>This example illustrates, by way of a color chart representation, how the <code>quantization</code> state property of the <a href="../reference/Uize.Fade.html"><code>Uize.Fade</code></a> class affects a fade's interpolated value over the course of its progress. In the example, a color is being faded from red to black over a series of swatches, from left to right. The color chart lets you visualize how different quantization settings for a fade could be used to generate color gradients with varying characteristics. This example also illustrates how the <code>Uize.Fade</code> class can be used for non-time based fades. Quantization, however, can be just as useful in time based fades.</p>
  </div>

  <div id="page-quantizationChart"></div>
</div>

<!-- JavaScript code to build and insert the color chart -->

<script type="text/javascript">

Uize.require (
  [
    'UizeSite.Page.Example.library',
    'UizeSite.Page.Example',
    'Uize.Fade',
    'Uize.Color',
    'Uize.Json'
  ],
  function () {
    'use strict';

    /*** create the example page widget ***/
      var page = window.page = UizeSite.Page.Example ();

    /*** configurable values ***/
      var
        columns = 80,
        tableSections = [
          {
            title:'The Same Quantization for All Color Channels',
            colors:['ff0000','000000'],
            settings:[
              {quantization:0},
              {quantization:4},
              {quantization:8},
              {quantization:12},
              {quantization:16},
              {quantization:20},
              {quantization:24},
              {quantization:26},
              {quantization:32},
              {quantization:36},
              {quantization:40},
              {quantization:44},
              {quantization:48},
              {quantization:52},
              {quantization:56},
              {quantization:60},
              {quantization:64},
              {quantization:68},
              {quantization:72},
              {quantization:76},
              {quantization:80}
            ]
          }
        ]
      ;

    /*** create fade instance ***/
      var fade = Uize.Fade ();

    /*** inside the table to hold the bars ***/
      var htmlChunks = ['<table border="0" cellspacing="0" cellpadding="0" class="paramsTable" style="margin:auto;">'];
      for (var tableSectionNo = -1; ++tableSectionNo < tableSections.length;) {
        var
          tableSection = tableSections [tableSectionNo],
          fadeSettings = tableSection.settings
        ;
        fade.set ({
          startValue:Uize.Color.to (tableSection.colors [0],'RGB array'),
          endValue:Uize.Color.to (tableSection.colors [1],'RGB array')
        });
        htmlChunks.push ('<tr><td colspan="' + (columns + 1) + '" class="tableHeading">' + tableSection.title + '</td></tr>');
        for (var fadeSettingNo = -1; ++fadeSettingNo < fadeSettings.length;) {
          var fadeSetting = fadeSettings [fadeSettingNo];
          fade.set (fadeSetting);
          htmlChunks.push ('<tr><td class="fieldLabel">' + Uize.Json.to (fadeSetting,'mini') + '</td>');
          for (var columnNo = -1; ++columnNo < columns;) {
            fade.set ({progress:columnNo / (columns - 1)});
            htmlChunks.push ('<td><div class="chartSegment" style="background:' + Uize.Color.to (fade.valueOf (),'RGB string') + ';"></div></td>');
          }
          htmlChunks.push ('</tr>');
        }
      }
      htmlChunks.push ('</table>');
      page.setNodeInnerHtml ('quantizationChart',htmlChunks.join (''));

    /*** wire up the page widget ***/
      page.wireUi ();
  }
);

</script>

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