<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.2912" name=GENERATOR></HEAD>
<BODY>
<DIV dir=ltr align=left><SPAN class=962314522-07082006><FONT face=Arial
color=#0000ff size=2>Bruno -</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=962314522-07082006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=962314522-07082006><FONT face=Arial
color=#0000ff size=2>You don't configure it. As long as your MapServer
binary is using GDAL support to read GeoTIFF files, GDAL will look for and
automatically use the overviews. For a given map request there will be a
certain input raster resolution desired. GDAL will use the
lowest-resolution overview that is not lower in resolution than the requested
resolution.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=962314522-07082006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=962314522-07082006><FONT face=Arial
color=#0000ff size=2> - Ed</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=962314522-07082006><!-- Converted from text/plain format -->
<P><FONT size=2>Ed McNierney<BR>President and Chief Mapmaker<BR>TopoZone.com /
Maps a la carte, Inc.<BR>73 Princeton Street, Suite 305<BR>North Chelmsford,
MA 01863<BR>Phone: +1 (978) 251-4242<BR>Fax: +1 (978)
251-1396<BR>ed@topozone.com</FONT> </P></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> UMN MapServer Users List
[mailto:MAPSERVER-USERS@LISTS.UMN.EDU] <B>On Behalf Of </B>Bruno Patini
Furtado<BR><B>Sent:</B> Monday, August 07, 2006 3:06 PM<BR><B>To:</B>
MAPSERVER-USERS@LISTS.UMN.EDU<BR><B>Subject:</B> [UMN_MAPSERVER-USERS] Layer
Overviews<BR></FONT><BR></DIV>
<DIV></DIV>Hi, <BR>I have successfully added internal overviews to a GeoTIFF
image, which had its size increased from 270mb to 370mb, but I'm not finding
where in the map file layer object where I configure this overviews. <BR><BR>In
order to create the internal overviews I've used the <SPAN
style="FONT-FAMILY: courier new,monospace">gdaladdo </SPAN>program.<BR><BR>Any
hint would be really appreciated!<BR clear=all><BR>-- <BR>"Minds are like
parachutes, they work best when open."<BR><BR>Bruno Patini Furtado <BR>Software
Developer<BR>webpage: <A
href="http://bpfurtado.net">http://bpfurtado.net</A><BR>software development
blog: <A
href="http://bpfurtado.livejournal.com">http://bpfurtado.livejournal.com</A>
</BODY></HTML>