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<div dir="auto">Hi,</div>
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<div dir="auto">The raster <span style="color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);display:inline !important">one </span>is the world, the second is the UK.</div>
<div dir="auto">The UK fits within the first raster...</div>
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We want to update UK data in raster one.</div>
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Regards,</div>
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<div dir="auto" style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255);">
Clive</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Rahkonen Jukka <jukka.rahkonen@maanmittauslaitos.fi><br>
<b>Sent:</b> Monday, December 5, 2022 11:34:53 AM<br>
<b>To:</b> Clive Swan <cliveswan@gmail.com>; gdal-dev@lists.osgeo.org <gdal-dev@lists.osgeo.org><br>
<b>Subject:</b> Re: [gdal-dev] gdal_merge</font>
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<p class="x_MsoNormal"><span style="">Hi,</span></p>
<p class="x_MsoNormal"><span style=""> </span></p>
<p class="x_MsoNormal"><span lang="EN-US" style="">Maybe your rasters are far apart. Gdal_merge creates a raster with so large extent that all the source images fit within it. Even empty pixels take space.</span></p>
<p class="x_MsoNormal"><span lang="EN-US" style=""> </span></p>
<p class="x_MsoNormal"><span lang="EN-US" style="">-Jukka Rahkonen-</span></p>
<p class="x_MsoNormal"><span lang="EN-US" style=""> </span></p>
<p class="x_MsoNormal"><span lang="EN-US" style=""> </span></p>
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<p class="x_MsoNormal"><b>Lähettäjä:</b> gdal-dev <gdal-dev-bounces@lists.osgeo.org>
<b>Puolesta </b>Clive Swan<br>
<b>Lähetetty:</b> maanantai 5. joulukuuta 2022 12.24<br>
<b>Vastaanottaja:</b> gdal-dev@lists.osgeo.org<br>
<b>Aihe:</b> [gdal-dev] gdal_merge</p>
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<p class="x_MsoNormal">Hi Even,</p>
<p class="x_MsoNormal"> </p>
<p class="x_MsoNormal">Thanks <br>
the –configuration sorted out that issue.</p>
<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Courier New"">CPL_VSIL_USE_TEMP_FILE_FOR_RANDOM_WRITE is a configuration option /
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Courier New"">environment variable, so you have to pass it with --config
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Courier New"">CPL_VSIL_USE_TEMP_FILE_FOR_RANDOM_WRITE YES</span></p>
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Now I am getting a memory issue?? << The input files are 6.9 GB + 672 MB<br>
The output should be 7.xx GB</p>
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<span class="x_gmail-s1"><span style="font-size:9.0pt; font-family:"Menlo",serif; color:purple">6.9 GB + 672MB</span></span><span style="font-size:9.0pt; font-family:"Menlo",serif; color:purple"></span></p>
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<span class="x_gmail-s1"><span style="font-size:9.0pt; font-family:"Menlo",serif; color:purple">numpy.core._exceptions._ArrayMemoryError: Unable to allocate 377. GiB for an array with shape (225000, 450000) and data type float32</span></span><span style="font-size:9.0pt; font-family:"Menlo",serif; color:purple"></span></p>
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<p class="x_MsoNormal" style="margin-bottom:12.0pt">Any suggestions appreciated</p>
<p class="x_MsoNormal">Kind regards,</p>
<p class="x_MsoNormal">Clive</p>
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<p style="margin:0cm"><span style="font-size:8.0pt"> Regards,</span></p>
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<p style="margin:0cm"><span style="font-size:8.0pt">Clive Swan</span></p>
<p style="margin:0cm"><span style="font-size:12.0pt">--</span></p>
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