[Bf-python] problem with absolute vertex coords

[Melchior FRANZ]

I wrote a Python script[1] that outputs vertex coordinates to an xml file that I
can directly use for FlightGear[2] animations. But it turned out that the coords
aren't correct -- they are too big. What I do is basically this:

  objects = Blender.Object.GetSelected()
  object = objects[0]
  mesh = object.getData()

  (cx, cy, cz) = object.getLocation()
  for v in mesh.verts:
          print cx + v[0], cy + v[1], cz + v[2]

whereby the "location" seems to be correct, but the vertex coordinates aren't.
I verified this by moving the cursor to one vertex and comparing the cursor
coordinates (Blender.Window.GetCursorPos()) with the sum of vertex and
location. Is there something else I have to consider? A value that I have to
multiply with each vertex coordinate? The error increases with the distance
from the object center -- it's not constant.

Example:

location:  -0.0286820754409 -8.83874573532e-09  49.741859436    (probably correct)
vertex:     3.99657440186    2.29797101021      74.6931228638   (seems wrong)
sum:        3.9678923264191  2.29797100137     124.4349822998   (wrong)
----------------------------------------------------------------
cursor:     3.55405831337    2.06002259254     116.700714111    (right)

m.



[1] I'm a Python beginner, so don't expect too much:
    http://members.aon.at/mfranz/fgfs_translate.py   :-)
[2] http://www.flightgear.org/