Re: [ggt-devel] Question about EulerAngleZXY, XYZ, ZYX

[Doug M. <mc...@ia...>]

Allen Bierbaum wrote:
> Allen Bierbaum wrote:
> 
>> Unfortunately, it looks like there are some bugs in the conversion 
>> somewhere.  My guess is that there are some border cases in the 
>> extraction of the euler angles from the Matrix.
>>
>> I have added a new test case that exhaustively tests all Euler getting 
>> and setting to find these issues. The test can be found in the 
>> MatrixGenTest test case.  If anyone has some time to look into this, 
>> you can use this test case to reproduce the problem.
> 
> 
> I just commited some changes that should fix the errors. (at least it 
> fixes the ones the test case found :)
> 
> Give it a spin and let me know.
> 
Just do a cvs checkout I assume?

Thanks for the prompt response. This was going to be my evening project 
but I guess I can do some testing instead. I appreciate the help.

> -A
> 
>>
>> -Allen
>>
>> Doug McCorkle wrote:
>>
>>>  Hello,
>>>      When using gtml I noticed that when I pass an identity Matrix44f 
>>> into
>>>  make< gmtl::EulerAngleZXY >( identity ) that I get back 90,0,90. If I
>>>  ask for an EulerAngleXYZ I get back 0,0,0 and ZYX return 0, nan, 0. Is
>>>  this the correct behavior of EulerAngle? I thought that no matter what
>>>  Euler combination that I ask for should return 0,0,0 for an identity
>>>  matrix. Thanks for the help in understanding this better. I am using
>>>  gmtl 0.4.5.
>>>
>>>
>>>  Doug
>>>