<div>Hi,</div>
<div> </div>
<div>Issue1:</div>
<div>Can we build overviews on a paletted geotiff map? or it has to apply only
to rgb maps?</div>
<div> </div>
<div>Issue2 : </div>
<div>I have a georeferenced geotiff map (with only 1 raster band) which is large
in size probably a few hundred Mb which i like to load in my app. So i use
GDALBuildOverviews to build overviews so that I can load lower resolution maps at smaller scales to beef up performance.<br> </div>
<div> </div>
<div>However, I noticed that after the building process is done, when i do
this:</div>
<div>rasterband->GetOverviewCount(), the result is not 0 which is normal
since i built overviews.</div>
<div> </div>
<div>But when I do:</div>
<div>rasterband->GetOverview(0)->GetOverviewCount(); the overview count is
also not 0. Why is this so ? shouldnt there be just one layer of overviews?
</div>
<div> </div>
<div>Thanks</div>
<div>Lee</div><br clear="all"><br>-- <br>Regards<br>Heng Hock