Rigid body with two cuts and an additional shape used in animation.
All the mass and inertia properties must be supplied with respect
to the center of mass. All parameter vectors are resolved in frame_a
in [m].
Parameters:
r[3] : Position vector from the origin of frame_a to the origin of
frame_b.
rCM[3] : Position vector from the origin of frame_a to the center of
mass.
m : Mass of body in [kg].
Ixy : Elements (x,y) of the inertia tensor of the body with respect to
the center of mass, resolved in the inertial frame in the home
position in [kgm^2]. The following elements can be defined:
I11, I22, I33, I21, I31, I32.
(Move the inertial from into the center of mass by translation
and resolve the inertia tensor in this frame).
Shape : Type of visual shape. Predefined shapes are
Shape = "box"
"sphere"
"cylinder"
"cone"
"pipe"
"beam"
"gearwheel"
"wirebox"
External shapes are specified as DXF-files (only 3DFace is supported).
External shapes must be named "1", "2" etc.. The corresponding definitions
should be in files "1.dxf", "2.dxf" etc.Since the DXF-files contain color
and dimensions for the individual faces, the corresponding information
in the model is currently ignored, but the specular coefficient is
utilized. The DXF-files must be found in the current directory.
r0[3] : Position vector from the origin of frame_a to the origin
of the visual object.
LengthDirection[3]: Unit vector in direction of length (will be normalized).
WidthDirection[3] : Unit vector in direction of width (will be normalized).
Length : Length of visual shape in [m].
Width : Width of visual shape in [m].
Height : Height of visual shape in direction of a vector which is
orthogonal to LengthDirection and WidthDirection.
Material[4] : = {r, g, b, specular} specifies the color of the shape.
[r,g,b] affects the color of diffuse and ambient reflected
light. Specular is a coefficient defining white specular
reflection. What color that is reflected also depends on the
color of the light sources. Note, r g, b and specular are
given in the range 0 .. 1. Specular=1 gives a metallic appearance.
Extra : Additional parameter for cone and pipe.
"pipe" : A hollow cylinder. Extra = InnerRadius/Radius of the cylinder.
"gearwheel": A ring with gear wheel teeth. Extra = number of teeth.
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