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        <title>wavesurfer.js | Split Wave Point Plot Example</title>

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                <h1 itemprop="name">Split Wave / Point Plot </h1>
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            <div>
                <p>
                The Split Wave Point Plot drawer splits the graphic in two, with the upper half being a plot of
                points defined by time and a range of values. The following example shows the calculated pitch
                at each point in time.
                </p>
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                <h3>How to Enable Split Wave/Point Plot</h3>

                <p>
                    Set the <code>renderer</code> option to <code>SplitWavePointPlot</code> and the <code>plotFileUrl</code> to the file containing the time aligned data.
                </p>

                <p>
<pre><code>var wavesurfer = WaveSurfer.create({
    container: document.querySelector('#wave'),
    renderer: 'SplitWavePointPlot',
    plotFileUrl: 'data.txt'
});
</code></pre>
                </p>

                <h3>Providing Point Data</h3>
                <p>The data to be graphed can be provided by either providing a file defined in the <code>plotFileUrl</code> or by passing in an array of data in the <code>plotArray</code> option. The time data does not need to be continous and can have gaps.</p>
                <strong>Note: if the timing of your data does not span the duration of the sound file you should set <code>plotTimeEnd</code> to the total duration of the sound file or the points may not be aligned correctly</strong></li>
                <h4>Data File Format</h4>
                <p>If providing data by loading a file, each line of the file must contain two elements: the time and the value of the point separated by a delimiter (defaults to tab).  E.g.</p>
<pre><code>0.01 123
0.02 121
0.03 127
0.22 120
0.23 119</code></pre>

                <h4>Data Array Format</h4>
                <p>If providing data by a javascript array via the <code>plotArray</code> option the array should have the following form:</p>
<pre><code>[
{time: 0.02, value: 121},
{time: 0.03, value: 127},
{time: 0.22, value: 120},
{time: 0.03, value: 119}
]</code></pre>

                <h3>Options</h3>
                <p>The following additional options can be set when initializing wavesurfer to control the waveform</p>
                <ul>
                    <li><code>plotArray:</code>               array of objects with time and plot (required unless plotFileUrl is set)</li>
                    <li><code>plotFileUrl:</code>              url of the file that contains the plot information (required unless plotArray is set)</li>
                    <li><code>plotNormalizeTo:</code>          [whole/segment/none/values] - what value to normalize the plot to (defaults to "whole")</li>
                    <li><code>plotMin:</code>                  the minimum value to normalize points to.  Any value below this will be ignored (defaults to 0)</li>
                    <li><code>plotMax:</code>                  the maximum value to normalize points to.  Any value above this will be ignored (defaults to 1)</li>
                    <li><code>plotTimeStart:</code>            the time included in the plot file which corresponds with the start of the displayed wave (defaults to 0)</li>
                    <li><code>plotTimeEnd:</code>              the time included in the plot file which corresponds with the end of the displayed wave (defaults maximum plot time)</li>
                    <li><code>plotColor:</code>                the color of the plot (defaults to #f63)</li>
                    <li><code>plotProgressColor:</code>       the color of the progress plot (defaults to '#F00')</li>
                    <li><code>plotFileDelimiter:</code>        the delimiter which separates the time from the value in the plot file (defaults to tab characater = "\t")</li>
                    <li><code>plotPointHeight:</code>          the canvas height of each plot point (defaults to 2)</li>
                    <li><code>plotPointWidth:</code>           the canvas width of each plot point (defaults to 2)</li>
                    <li><code>plotSeparator:</code>            boolean indicating a separator should be included between the wave and point plot</li>
                    <li><code>plotRangeDisplay:</code>         boolean indicating if the min and max range should be displayed (defaults to false)</li>
                    <li><code>plotRangePrecision:</code>       integer determining the precision of the displayed plot range</li>
                    <li><code>plotRangeUnits:</code>           units appended to the range</li>
                    <li><code>plotRangeFontSize:</code>        the font for displaying the range - defaults to 20</li>
                    <li><code>plotRangeFontType:</code>        the font type for displaying range - defaults to Ariel</li>
                    <li><code>plotRangeIgnoreOutliers:</code>  boolean indicating if values outside of range should be ignored or plotted at min/max</li>
                </ul>
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                        Demo is selection of from The Hobbit by J.R.R. Tolkien
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