On Wed, Aug 1, 2018 at 9:13 AM Jody Garnett <[email protected]> wrote:
> Okay my PR is now tested and ready to go, with PackedCoordinateSequence
> providing an implementation of the API.
>
Mind, GeoTools and GeoServer use extensively LiteCoordinateSequence to
have maximum performance in WMS (but found
it's used also in WFS) , as it gives direct access to its internal array
(bad for JTS API wise, but fundamental to avoid reallocations in the
rendering chain [1]).
And oh, that's a PackedCoordinateSequence subclass!
Hum... well I guess that LiteCoordinateSequence will just inherit the new
functionality from its base class
(as long as it's in PackedCoordinateSequence and not in its non abstract
subclasses) :-)
Jody, any reason not to have that method in all coordinate sequences, with
a default implementation?
Or at least have it in the most common one, CoordinateArraySequence?
Cheers
Andrea
[1]: One thing Laurent Bourges suggested is to replace that coordinate
sequence with a different one that
would pool the ordinate arrays. That's how Marlin got its main performance
boost, by avoiding allocating
and throwing away lots of arrays. I did not find the time to look into it
yet, and I'm not sure it will provide
a measurable benefit, most of the time now seems to be spent in IO and
encoding results.
==
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