Define here the text position and orientation.
Translation
The origin of a text object, defined as its top left corner,
can be set using the 
X, 
Y, 
Z entries.
A simpler way to set directly the text position is to click on 
the screen, at the wished position, after defining all the other 
text properties: a new text object is created at that position.
Rotation
The orientation of a text object, defined by the Euler angles theta, 
phi, psi, can be set using the 
E1, 
E2, 
E3 entries.
Euler angles in GAMGI are defined as follows: first, the (x, y, z) 
referential is rotated theta degrees (between 0 and 180) around the 
y axis, then the referential is rotated phi degrees (between 0 and 360) 
around the initial z axis, and finally it is rotated psi degrees (between 
0 and 360) around the new z axis, always in the direct, counter-clockwise, 
direction. If the first Euler angle (theta) is zero, the old and new z axis 
coincide, thus (0, 0, 10) and (0, 5, 5) represent the same rotation. 
By default text objects are on a plane parallel to the screen, 
corresponding to Euler angles (0, 0, 0). For this orientation,
Wired (stroked) text objects, and 
Solid (extruded) 
text objects in a layer with an orthographic projection, will
look exactly as normal 2D text messages.