Hi Helge,
with the ImagePyramidReader if you zoom in more than the resolution provided
by the pyramid, the reader should start doing some interpolation using
Pyramid level 0 as image source. That could be the cause of the increased
loading time I guess, is that the case you are talking about?
If not, maybe you have found a bug ...
On 6/11/07, Helge Koch <[EMAIL PROTECTED]> wrote:
Hi,
the last few days I have been playing around with ImagePyramidReader a
little bit and finally tried to use it in a Swing desptop application with
the NASA Blue Marble data (instructions for building at
http://docs.codehaus.org/display/GEOSDOC/Load+NASA+Blue+Marble+Data).
Everything went fine, but when zooming in repeatedly I noticed that at
some
point the time needed to load/display the mosaic (for that zoom level)
increases very much.
Using the debugger I found that ImagePyramidReader displays a mosaic with
more detail than at the zoom level before (I only zoomed in repeatedly).
Example: First display -> detail level: very fine, zoom in -> detail
level:
fine, zoom in -> detail level: intermediate, zoom in -> detail level: fine
(with a very large number of tiles to be loaded)?
Would you agree that this is a bug/inconvenient behaviour? I already found
the relevant code and could probably change it. But my main question is,
if
this behaviour will be changed in future releases (so I do not need to
maintain my own version of ImagePyramidReader)?
Thanks
Helge
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