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

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

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.

-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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