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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