Thanx to you my questions are comming to an end <div><br></div>
<div>Three more last things</div><div><br></div><div>Should i retile the new mosaiced overview? Meaning should i create smaller size tiles of the new mosaic?</div><div><br></div><div>And how can i find in which scale should i switch layers? So what will be the maxscale of the original layer?</div>
<div><br></div><div>if ill still have performance problems, or ill get 1-2 terabytes of data more should i make another mosaic with 0.08*16 or 0.08*8, or is there another strategy?</div><div><br></div><div><br><br><div class="gmail_quote">
On Thu, Aug 19, 2010 at 2:46 PM, Frank Warmerdam [via OSGeo.org] <span dir="ltr"><<a href="/user/SendEmail.jtp?type=node&node=5440101&i=0" target="_top" rel="nofollow">[hidden email]</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">
Edi.Karadumi wrote:
<br>> Sorry to bother again, when i use gdal_merge.py the part -ps 160 160, thats
<br>> the pixel dimension and i get an image 1kb. The pixel size of the original
<br>> file is 0.08 meters. So i think i should use 0.08x32 in the gdal_merge.py
<br>> command?
<br><br></div><div class="im">Edi,
<br><br>If the original resolution is 8cm then the 1/32nd overview should indeed
<br>have a pixel size of 0.08x32 or 2.56m.
<br><br></div><div class="im"> > And how many tiles should i merge together? Now i have 2T images
<br> > and 2000Gb/32 = 62Gb the rezult image. Should i merge them all together and
<br> > than recreate tiles? Even if i had 1200gb, 1200/32=37.5gb for an image not
<br> > 1gb. That is still an image size that cant be handled
<br><br></div><div class="im">Note that the 1/32nd overview is reduced by a factor of 32 in x and y
<br>so overall it will be original_size/(32*32). So 2TB would reduce to
<br>about 1.95GB.
<br><br></div>Best regards,
<br>--
<br>---------------------------------------+--------------------------------------
<br>I set the clouds in motion - turn up | Frank Warmerdam, <a href="http://user/SendEmail.jtp?type=node&node=5440051&i=0" rel="nofollow" target="_blank" link="external">[hidden email]</a>
<br><div class="im">light and sound - activate the windows | <a href="http://pobox.com/~warmerdam" rel="nofollow" link="external" target="_blank">http://pobox.com/~warmerdam</a><br>and watch the world go round - Rush | Geospatial Programmer for Rent
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