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same projection, resolution and grid alignment of another raster.
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  <div class="col-md-9 contents">
    <div class="page-header">
    <h1>Warp a raster file aligning it on the grid of another file</h1>
    <small class="dont-index">Source: <a href="https://github.com/ranghetti/sen2r/blob/HEAD/R/gdalwarp_grid.R" class="external-link"><code>R/gdalwarp_grid.R</code></a></small>
    <div class="hidden name"><code>gdalwarp_grid.Rd</code></div>
    </div>

    <div class="ref-description">
    <p>The function applies <code>gdalwarp</code> to build rasters with the
same projection, resolution and grid alignment of another raster.
If not specified, the output format of each file is the same of the
corresponding source file.</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">gdalwarp_grid</span><span class="op">(</span></span>
<span>  <span class="va">srcfiles</span>,</span>
<span>  <span class="va">dstfiles</span>,</span>
<span>  <span class="va">ref</span>,</span>
<span>  of <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  r <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  dstnodata <span class="op">=</span> <span class="cn">NA</span>,</span>
<span>  tmpdir <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/tempfile.html" class="external-link">tempdir</a></span><span class="op">(</span><span class="op">)</span></span>
<span><span class="op">)</span></span></code></pre></div>
    </div>

    <div id="arguments">
    <h2>Arguments</h2>
    <dl><dt>srcfiles</dt>
<dd><p>A vector of input file paths (managed by GDAL).</p></dd>


<dt>dstfiles</dt>
<dd><p>A vector of input file paths.</p></dd>


<dt>ref</dt>
<dd><p>Path of the raster taken as reference.</p></dd>


<dt>of</dt>
<dd><p>The output format (use the short format name). Default is
the format of every input filename.</p></dd>


<dt>r</dt>
<dd><p>Resampling_method (<code>"near"</code>|<code>"bilinear"</code>|<code>"cubic"</code>|<code>"cubicspline"</code>|
<code>"lanczos"</code>|<code>"average"</code>|<code>"mode"</code>|<code>"max"</code>|<code>"min"</code>|<code>"med"</code>|<code>"q1"</code>|<code>"q3"</code>).</p></dd>


<dt>dstnodata</dt>
<dd><p>(optional) Set nodata values for output bands
(parameter passed to <code><a href="gdalUtil.html">gdalUtil()</a></code>).</p></dd>


<dt>tmpdir</dt>
<dd><p>(optional) Path where intermediate files (.prj) will be created.
Default is a temporary directory.</p></dd>

</dl></div>
    <div id="value">
    <h2>Value</h2>
    

<p>NULL (the function is called for its side effects)</p>
    </div>
    <div id="note">
    <h2>Note</h2>
    <p>License: GPL 3.0</p>
    </div>
    <div id="references">
    <h2>References</h2>
    <p>L. Ranghetti, M. Boschetti, F. Nutini, L. Busetto (2020).
"sen2r": An R toolbox for automatically downloading and preprocessing
Sentinel-2 satellite data. <em>Computers &amp; Geosciences</em>, 139, 104473.
<a href="https://doi.org/10.1016/j.cageo.2020.104473" class="external-link">doi:10.1016/j.cageo.2020.104473</a>
, URL: <a href="https://sen2r.ranghetti.info/" class="external-link">https://sen2r.ranghetti.info/</a>.</p>
    </div>
    <div id="author">
    <h2>Author</h2>
    <p>Luigi Ranghetti, phD (2019)</p>
    </div>

    <div id="ref-examples">
    <h2>Examples</h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="co"># \donttest{</span></span></span>
<span class="r-in"><span><span class="co"># Define file names</span></span></span>
<span class="r-in"><span><span class="va">ex_sel</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/system.file.html" class="external-link">system.file</a></span><span class="op">(</span></span></span>
<span class="r-in"><span>  <span class="st">"extdata/out/S2A2A_20190723_022_Barbellino_BOA_10.tif"</span>,</span></span>
<span class="r-in"><span>  package <span class="op">=</span> <span class="st">"sen2r"</span></span></span>
<span class="r-in"><span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">ex_ref</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/system.file.html" class="external-link">system.file</a></span><span class="op">(</span></span></span>
<span class="r-in"><span>  <span class="st">"extdata/out/S2A2A_20190723_022_Barbellino_SCL_10.tif"</span>,</span></span>
<span class="r-in"><span>  package <span class="op">=</span> <span class="st">"sen2r"</span></span></span>
<span class="r-in"><span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">ex_out</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/tempfile.html" class="external-link">tempfile</a></span><span class="op">(</span>fileext <span class="op">=</span> <span class="st">"_BOA_out.tif"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Run function</span></span></span>
<span class="r-in"><span><span class="fu">sen2r</span><span class="fu">:::</span><span class="fu">gdalwarp_grid</span><span class="op">(</span><span class="va">ex_sel</span>, <span class="va">ex_out</span>, ref <span class="op">=</span> <span class="va">ex_ref</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Show output</span></span></span>
<span class="r-in"><span><span class="va">oldpar</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/graphics/par.html" class="external-link">par</a></span><span class="op">(</span>mfrow <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="fl">1</span>,<span class="fl">3</span><span class="op">)</span>, mar <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">0</span>,<span class="fl">4</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/image.html" class="external-link">image</a></span><span class="op">(</span><span class="fu">stars</span><span class="fu">::</span><span class="fu"><a href="https://r-spatial.github.io/stars/reference/read_stars.html" class="external-link">read_stars</a></span><span class="op">(</span><span class="va">ex_sel</span><span class="op">)</span>, rgb <span class="op">=</span> <span class="fl">4</span><span class="op">:</span><span class="fl">2</span>, maxColorValue <span class="op">=</span> <span class="fl">3500</span>, useRaster <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/par.html" class="external-link">par</a></span><span class="op">(</span>mar <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">2</span><span class="op">/</span><span class="fl">3</span>,<span class="fl">4</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/image.html" class="external-link">image</a></span><span class="op">(</span><span class="fu">stars</span><span class="fu">::</span><span class="fu"><a href="https://r-spatial.github.io/stars/reference/read_stars.html" class="external-link">read_stars</a></span><span class="op">(</span><span class="va">ex_ref</span><span class="op">)</span>, useRaster <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/par.html" class="external-link">par</a></span><span class="op">(</span>mar <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">0</span>,<span class="fl">4</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/image.html" class="external-link">image</a></span><span class="op">(</span><span class="fu">stars</span><span class="fu">::</span><span class="fu"><a href="https://r-spatial.github.io/stars/reference/read_stars.html" class="external-link">read_stars</a></span><span class="op">(</span><span class="va">ex_out</span><span class="op">)</span>, rgb <span class="op">=</span> <span class="fl">4</span><span class="op">:</span><span class="fl">2</span>, maxColorValue <span class="op">=</span> <span class="fl">3500</span>, useRaster <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="gdalwarp_grid-1.png" alt="" width="700" height="433"></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/par.html" class="external-link">par</a></span><span class="op">(</span><span class="va">oldpar</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="co"># }</span></span></span>
</code></pre></div>
    </div>
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