290635b354
Minor code size optimisation; use memset to zero *this rather than explicitly assigning zero to the vector elements. Still not quite optimal for matrix3 as it gets three memsets, but still cheaper in terms of code size.
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git-svn-id: https://arducopter.googlecode.com/svn/trunk@1212 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-12-20 01:52:23 +00:00
e930dacb4d
AP_Math - initialise vector2 and vector3 x,y,z values to zero. Doug found (and I confirmed) that if vectors or matrices were declared in a function (i.e. a local variable), they would often have non-zero values. Global declarations don't have this problem - it's a C++ performance thing it seems.
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git-svn-id: https://arducopter.googlecode.com/svn/trunk@878 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-11-22 02:29:15 +00:00
7721e622aa
Rather than subclassing from the templated classes, just typedef directly to them.
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This should solve the issues related to assigning to the convenience types.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@543 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-09-23 05:45:43 +00:00
ac2e14c4ec
Remove a bunch of probably wrong const cruft. Ditch the dubious array index operators from vector2.
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git-svn-id: https://arducopter.googlecode.com/svn/trunk@538 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-09-22 17:41:49 +00:00
815e5f871a
Remove the trivial operator= implementations, the default shallow copy is fine.
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git-svn-id: https://arducopter.googlecode.com/svn/trunk@537 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-09-22 16:32:38 +00:00
646045ef44
Some minor fixes prompted while looking at the code for other reasons.
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Return non-const values from assignment. Fix operator* for matrix3.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@536 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-09-22 16:15:26 +00:00
097161cd8d
Beginnings of a math library for ArduPilot(Mega) systems.
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The vector classes are light adaptations of work by Bill Perone
(billperone@yahoo.com ), the Matrix3 class draws on them for
inspiration.
Bill's matrix classes are too heavyweight and not templated, so
they're less suitable for us here.
This code compiles, and some trivial tests seem to work, but
it should not be considered "golden" yet.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@441 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-09-08 08:21:46 +00:00
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