[simspark-devel] confusing descriptions in the manual

[Huang Y. <air...@gm...>]

Hi, all.

I'm confused about the joint configurations stated in the manual.
In the manual, the axis description states the direction relative to the
body that installed on. But there are some axis which are not consistent
with the figure 8.6.
For example of joint of the head, the axis direction stated in the table 8.3
is [1, 0, 0], but as shown in figure 8.6, the head joint axis should be in
the direction [0, 1, 0] relative to the head( or the neck's axis).
I'm not very clear why the [x, y, z] form of direction will be used in the
axis description. Is there any default frame attached to the bodypart so
that [x, y, z] is relative to the frame?
If there is a default frame, how to figure it out? This is very important
for me, because both of axis and anchor of the joint use the 3D coordinates
to describe their position.

-- 
Best regards,
Yaolong Huang(Curtis)

Tianjin University, China

Blog: http://blog.csdn.net/airekans/