Thank you guys,

Andrea - I tried to include your example in GeoTools-2.5.4 but i got some 
errors in CachingFeatureSource class, e.g. FeatureType.getTypeName() is called 
but it didn't exists and similar.

Jody - Does in GeoTools currently exists some engine for rendering 2D maps in 
"tiles"? I know that there is 3D map renderer.


Michael Bedward ha scritto:
> Hello,
> 
>>> Are there some plans for revisioning JMapPane class in near future relating 
>>> to this issues?
>> Not at present.
>>
> 
> JMapPane has been rewritten for GeoTools 2.6 but I think you'll find
> that the drawing speed is pretty much the same.
> 
> Any suggestions for tweaking JMapPane are most welcome, but since all
> of the real drawing work is done by the StreamingRenderer class you
> will need to look there to work out how to achieve any substantial
> improvement.

To achieve substantial improvements one needs in memory caching.
It's not a topic I have a personal interest into, but I did provide
some time ago a caching feature source + spatial index that can be used
to significantly speed up drawing for small amounts of data.
There is also a caching module in unsupported made last year
by a summer of code student, but I really never tried it out
so I cannot comment on its speed/functionality.

Anyways, it's still in the gt2-users archives, here:
http://n2.nabble.com/Render-with-gt2.3.1-td1939887.html#a10160606

Cheers
Andrea

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