<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">The resolution of the GeoTIFF is determined by the resolution of the data. If you want to increase the resolution, you can use lterp() to interpolate to a finer grid, then write out the GeoTIFF using the interpolated data. You can use a dummy descriptor file to set the grid to be anything you want, then use the internal variable 'lat' or 'lon' in the lterp command for the destination grid. <div><br></div><div>Dummy descriptors look like this:</div><div><br></div><div>dset ^foo</div><div>title dummy descriptor file</div><div>options template</div><div>xdef <you define these to be whatever you want></div><div>ydef </div><div>zdef </div><div>tdef </div><div>undef -9.99e8</div><div>vars 1</div><div>foo 0 0 foo</div><div>endvars</div><div><br></div><div><a href="http://iges.org/grads/gadoc/gradfunclterp.html">http://iges.org/grads/gadoc/gradfunclterp.html</a></div><div><br></div><div>--Jennifer</div><div> <div><br><div><div>On May 29, 2013, at 5:56 AM, Matthias Jaros wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Dear grads users,<br><br>is there a possibility to create GeoTIFFs with larger resolution? I am <br>using the GeoTIFFs later on to render image tiles using Mapnik and you <br>can see every pixel very clearly on larger zoom levels because of the <br>low resolution of the tiff file.<br>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>http://gradsusr.org/mailman/listinfo/gradsusr<br></div></blockquote></div><br><div apple-content-edited="true">
<span class="Apple-style-span" style="font-size: 12px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>--</div><div>Jennifer M. Adams</div><div>IGES/COLA</div><div>4041 Powder Mill Road, Suite 302</div><div>Calverton, MD 20705</div><div><a href="mailto:jma@cola.iges.org">jma@cola.iges.org</a></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span>
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