I think you are doing the coordination right now on
this email thread ( the tasks section of the proposal
is also good).
I like your idea to make a general matrix testing
master - add that to the tasks section of the proposal
and stick your initials next to it if you are in
position to volunteer.
I hope other PMC members can review the plan and vote.
On Sat, Mar 14, 2015 at 3:12 PM Jim Hughes
<jn...@ccri.com <mailto:jn...@ccri.com>> wrote:
Hi all,
Jody, Tyler, and I hacked at this on Friday during
a code sprint. The partial results are here:
https://github.com/geotools/geotools/commits/matrix
There are a few remaining errors to track down, and
the cautious part of me wants to go back and cook
up a set of unit tests for GeneralMatrix.
Anyhow, since we are all traveling for the next few
days, I wanted to ask what the best way to
coordinate future effort is?
If anyone else is interested pitching in, let us know.
Thanks,
Jim
p.s. The commits from an 'Alex Tatusko' are from
me. I goofed up and didn't change the Git info on
a loaner laptop.
On 03/13/2015 03:55 PM, Jody Garnett wrote:
A bit more research shows we should support the
geotools Matrix and XMatrix methods (giving us a
limited set of methods to implement). Proposal
updated accordingly ...
--
Jody Garnett
On 13 March 2015 at 12:31, Andrea Aime
<andrea.a...@geo-solutions.it
<mailto:andrea.a...@geo-solutions.it>> wrote:
On Fri, Mar 13, 2015 at 7:57 PM, Jody Garnett
<jody.garn...@gmail.com
<mailto:jody.garn...@gmail.com>> wrote:
At the foss4gna code sprint, here is a
proposal to make this change:
http://docs.codehaus.org/display/GEOTOOLS/Change+from+vecmath+to+EJML
Looking at this with Jim, the library has
DenseMatrix64F (which does the work) and
an example of wrapping this up for normal
use called SimpleMatrix.
Each operation in SimpleMatrix makes a
copy, an overhead we could avoid by using
DenseMatrix64F ourself. So the proposal is
to delegate to DenseMatrix64F, using
SimpleMatrix (and its friend BaseMatrix)
as a guide.
Alternatively we could kill our
GeneralMatrix class and use SimpleMatrix
directly in the rest of the GeoTools
codebase, it would be more an an API
change - which is okay if people only see
this stuff inside MathTransforms. Anyone
got an idea on how visible GeneralMatrix is?
I don't... and guess we should try to keep it
around. Anyways, the direction appears to be
sound, no objections.
Cheers
Andrea
--
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