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

[Allen B. <al...@vr...>]

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.

-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
>>
>>
>>
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