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from yellow to blue in a way that is designed to reproduce well
in black-and-white, and to be interpretable by those with
certain forms of color blindness.  See the references for
notes about issues of colour blindness in computer graphics.
An alternative
to oceColorsViridis is provided in the viridis package, as illustrated
in Example 2."><meta property="og:description" content="This is patterned on a matlab/python scheme that blends
from yellow to blue in a way that is designed to reproduce well
in black-and-white, and to be interpretable by those with
certain forms of color blindness.  See the references for
notes about issues of colour blindness in computer graphics.
An alternative
to oceColorsViridis is provided in the viridis package, as illustrated
in Example 2."></head><body>
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      <h1>Create Colors Similar to the Matlab Viridis Scheme</h1>
      <small class="dont-index">Source: <a href="https://github.com/dankelley/oce/blob/HEAD/R/oce.R" class="external-link"><code>R/oce.R</code></a></small>
      <div class="d-none name"><code>oceColorsViridis.Rd</code></div>
    </div>

    <div class="ref-description section level2">
    <p>This is patterned on a matlab/python scheme that blends
from yellow to blue in a way that is designed to reproduce well
in black-and-white, and to be interpretable by those with
certain forms of color blindness.  See the references for
notes about issues of colour blindness in computer graphics.
An alternative
to oceColorsViridis is provided in the <a href="https://CRAN.R-project.org/package=viridis" class="external-link"><span class="pkg">viridis</span></a> package, as illustrated
in Example 2.</p>
    </div>

    <div class="section level2">
    <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">oceColorsViridis</span><span class="op">(</span><span class="va">n</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


<dl><dt id="arg-n">n<a class="anchor" aria-label="anchor" href="#arg-n"></a></dt>
<dd><p>number of colors to create.</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="references">References<a class="anchor" aria-label="anchor" href="#references"></a></h2>
    <p>The following references provide information on choosing
colour schemes, that are suitable for viewers who have
colour deficiencies.</p>
<p>Light, Adam, and Patrick J. Bartlein. "The End of the Rainbow? Color
Schemes for Improved Data Graphics." <em>Eos, Transactions American Geophysical
Union</em> 85, no. 40 (2004): 385.
DOI: 10.1029/2004EO400002</p>
<p>Stephenson, David B. "Comment on 'Color Schemes for Improved Data
Graphics', by A Light and P.J. Bartlein." <em>Eos, Transactions American
Geophysical Union</em> 86, no.  20 (2005): 196.
DOI: 10.1029/2005EO200005</p>
<p>Light, Adam, and Patrick J. Bartlein. "Reply to 'Comment on Color
Schemes for Improved Data Graphics,' by A. Light and P.J.  Bartlein'."
<em>Eos, Transactions American Geophysical Union</em> 86, no. 20 (2005): 196–196.
DOI: 10.1029/2005EO200006</p>
<p>The following references provide information on choosing
colour schemes, that are suitable for viewers who have
colour deficiencies.</p>
<p>Light, Adam, and Patrick J. Bartlein. "The End of the Rainbow? Color
Schemes for Improved Data Graphics." <em>Eos, Transactions American Geophysical
Union</em> 85, no. 40 (2004): 385.
DOI: 10.1029/2004EO400002</p>
<p>Stephenson, David B. "Comment on 'Color Schemes for Improved Data
Graphics', by A Light and P.J. Bartlein." <em>Eos, Transactions American
Geophysical Union</em> 86, no.  20 (2005): 196.
DOI: 10.1029/2005EO200005</p>
<p>Light, Adam, and Patrick J. Bartlein. "Reply to 'Comment on Color
Schemes for Improved Data Graphics,' by A. Light and P.J.  Bartlein'."
<em>Eos, Transactions American Geophysical Union</em> 86, no. 20 (2005): 196–196.
DOI: 10.1029/2005EO200006</p>
    </div>
    <div class="section level2">
    <h2 id="see-also">See also<a class="anchor" aria-label="anchor" href="#see-also"></a></h2>
    <div class="dont-index"><p>Other things related to colors:
<code><a href="colormap.html">colormap</a>()</code>,
<code><a href="colormapGMT.html">colormapGMT</a>()</code>,
<code><a href="oceColors9B.html">oceColors9B</a>()</code>,
<code><a href="oceColorsCDOM.html">oceColorsCDOM</a>()</code>,
<code><a href="oceColorsChlorophyll.html">oceColorsChlorophyll</a>()</code>,
<code><a href="oceColorsClosure.html">oceColorsClosure</a>()</code>,
<code><a href="oceColorsDensity.html">oceColorsDensity</a>()</code>,
<code><a href="oceColorsFreesurface.html">oceColorsFreesurface</a>()</code>,
<code><a href="oceColorsGebco.html">oceColorsGebco</a>()</code>,
<code><a href="oceColorsJet.html">oceColorsJet</a>()</code>,
<code><a href="oceColorsOxygen.html">oceColorsOxygen</a>()</code>,
<code><a href="oceColorsPAR.html">oceColorsPAR</a>()</code>,
<code><a href="oceColorsPalette.html">oceColorsPalette</a>()</code>,
<code><a href="oceColorsPhase.html">oceColorsPhase</a>()</code>,
<code><a href="oceColorsSalinity.html">oceColorsSalinity</a>()</code>,
<code><a href="oceColorsTemperature.html">oceColorsTemperature</a>()</code>,
<code><a href="oceColorsTurbidity.html">oceColorsTurbidity</a>()</code>,
<code><a href="oceColorsTurbo.html">oceColorsTurbo</a>()</code>,
<code><a href="oceColorsTwo.html">oceColorsTwo</a>()</code>,
<code><a href="oceColorsVelocity.html">oceColorsVelocity</a>()</code>,
<code><a href="oceColorsVorticity.html">oceColorsVorticity</a>()</code>,
<code><a href="ocecolors.html">ocecolors</a></code></p></div>
    </div>
    <div class="section level2">
    <h2 id="author">Author<a class="anchor" aria-label="anchor" href="#author"></a></h2>
    <p>Dan Kelley</p>
    </div>

    <div class="section level2">
    <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://dankelley.github.io/oce/">oce</a></span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="co"># Example 1: oceColorsViridis</span></span></span>
<span class="r-in"><span><span class="fu"><a href="imagep.html">imagep</a></span><span class="op">(</span><span class="va">volcano</span>,</span></span>
<span class="r-in"><span>    col <span class="op">=</span> <span class="fu">oceColorsViridis</span><span class="op">(</span><span class="fl">128</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>    zlab <span class="op">=</span> <span class="st">"oceColorsViridis"</span></span></span>
<span class="r-in"><span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="oceColorsViridis-1.png" alt="" width="700" height="700"></span>
<span class="r-in"><span></span></span>
</code></pre></div>
    </div>
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