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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