Michael P. Gerlek wrote:
int sceneWidth = (int)(nXSize * maxWidth / (double)maxWidthAtL0 + 0.99);
int sceneHeight = (int)(nYSize * maxHeight / (double)maxHeightAtL0 +
0.99);
Ouch, you shouldn't be doing rounding like that. Use the getDimsAtMag()
function to get the exact width/height you need and all will be well.
Michael,
I have reviewed the documentation for LTIImage:getDimsAtMag() and it appears
to just return the size of the whole image at a particular magnification level.
The above calculations are intended to find the size of the RasterIO() request
window at the desired zoom level. So I don't think it is applicable.
I have filed a ticket on the problem I found (which happens to have also been
responsible for a bug reported by a client this week) and I have committed
a fix in 1.5 and trunk.
http://trac.osgeo.org/gdal/ticket/2689
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, [EMAIL PROTECTED]
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
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