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charts printed during the GEBCO Fifth Edition era.
The hues range from dark blue to light blue, then
from light brown to dark brown.  If used to show
topography in scheme centred on z=0, this means that
near-coastal regions are light in tone, with darker
colours representing both mountains and the deep sea."><meta property="og:description" content="The colours were determined by examination of paper
charts printed during the GEBCO Fifth Edition era.
The hues range from dark blue to light blue, then
from light brown to dark brown.  If used to show
topography in scheme centred on z=0, this means that
near-coastal regions are light in tone, with darker
colours representing both mountains and the deep sea."></head><body>
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      <h1>Create Colors in a GEBCO-like 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>oceColorsGebco.Rd</code></div>
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    <div class="ref-description section level2">
    <p>The colours were determined by examination of paper
charts printed during the GEBCO Fifth Edition era.
The hues range from dark blue to light blue, then
from light brown to dark brown.  If used to show
topography in scheme centred on z=0, this means that
near-coastal regions are light in tone, with darker
colours representing both mountains and the deep sea.</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">oceColorsGebco</span><span class="op">(</span></span>
<span>  n <span class="op">=</span> <span class="fl">9</span>,</span>
<span>  region <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"water"</span>, <span class="st">"land"</span>, <span class="st">"both"</span><span class="op">)</span>,</span>
<span>  type <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"fill"</span>, <span class="st">"line"</span><span class="op">)</span>,</span>
<span>  debug <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/options.html" class="external-link">getOption</a></span><span class="op">(</span><span class="st">"oceDebug"</span><span class="op">)</span></span>
<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 return</p></dd>


<dt id="arg-region">region<a class="anchor" aria-label="anchor" href="#arg-region"></a></dt>
<dd><p>String indicating application region,
one of <code>"water"</code>, <code>"land"</code>, or <code>"both"</code>.</p></dd>


<dt id="arg-type">type<a class="anchor" aria-label="anchor" href="#arg-type"></a></dt>
<dd><p>String indicating the purpose, one of <code>"fill"</code> or <code>"line"</code>.</p></dd>


<dt id="arg-debug">debug<a class="anchor" aria-label="anchor" href="#arg-debug"></a></dt>
<dd><p>a flag that turns on debugging.</p></dd>

</dl></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="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="oceColorsViridis.html">oceColorsViridis</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="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="fu"><a href="imagep.html">imagep</a></span><span class="op">(</span><span class="va">volcano</span>, col <span class="op">=</span> <span class="fu">oceColorsGebco</span><span class="op">(</span><span class="fl">128</span>, region <span class="op">=</span> <span class="st">"both"</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="oceColorsGebco-1.png" alt="" width="700" height="700"></span>
<span class="r-in"><span></span></span>
</code></pre></div>
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