<div dir="ltr">Hi, do you know why this happens when i try to merge tiles of a specific tiff?<br>How can check if a tiff had a rotated geo transforms? And how can i fix it before merging it?<br>Here are some QGIS info about the tiff:<br><table class="gmail-list-view" style="border-collapse:collapse;table-layout:fixed;font-size:14.4px;font-family:Lato,Ubuntu,"Lucida Grande","Segoe UI",Arial,sans-serif;text-indent:0px;width:100%"><tbody><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">SR</td><td style="vertical-align:top">EPSG:4326 - WGS 84 - Geografico</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Estensione</td><td style="vertical-align:top">-179.9999999999999716,-90.0040001037068436 : 180.0080002074136871,89.9999999999999858</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Unità</td><td style="vertical-align:top">gradi</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Larghezza</td><td style="vertical-align:top">54000</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Altezza</td><td style="vertical-align:top">27000</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Tipo di dato</td><td style="vertical-align:top">Byte- intero senza segno di 8 bit</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Descrizione Driver GDAL</td><td style="vertical-align:top">GTiff</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Metadato Driver GDAL</td><td style="vertical-align:top">GeoTIFF</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Descrizione dell'insieme di dati</td><td style="vertical-align:top"></td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Compressione</td><td style="vertical-align:top"></td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Banda 1</td><td style="vertical-align:top"><ul><li>STATISTICS_APPROXIMATE=YES</li><li>STATISTICS_MAXIMUM=255</li><li>STATISTICS_MEAN=5.3210525813876</li><li>STATISTICS_MINIMUM=0</li><li>STATISTICS_STDDEV=18.136379276344</li><li>STATISTICS_VALID_PERCENT=100</li></ul></td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Banda 2</td><td style="vertical-align:top"><ul><li>STATISTICS_APPROXIMATE=YES</li><li>STATISTICS_MAXIMUM=255</li><li>STATISTICS_MEAN=10.134402838017</li><li>STATISTICS_MINIMUM=1</li><li>STATISTICS_STDDEV=17.628760932834</li><li>STATISTICS_VALID_PERCENT=100</li></ul></td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Banda 3</td><td style="vertical-align:top"><ul><li>STATISTICS_APPROXIMATE=YES</li><li>STATISTICS_MAXIMUM=255</li><li>STATISTICS_MEAN=41.73256634051</li><li>STATISTICS_MINIMUM=28</li><li>STATISTICS_STDDEV=20.687348771707</li><li>STATISTICS_VALID_PERCENT=100</li></ul></td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Maggiori informazioni</td><td style="vertical-align:top"></td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Dimensioni</td><td style="vertical-align:top">X: 54000 Y:.27000 Bande: 3</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Origine</td><td style="vertical-align:top">-180,90</td></tr><tr><td class="gmail-highlight" style="vertical-align:top;border:0px;width:92.4531px;padding-right:15px;padding-left:20px;font-weight:bold">Dimensione pixel</td></tr></tbody></table> </div>