User`s guide

9 Blocks — Alphabetical List
9-26
SFxxx field that can map to a variable-size signal. For details about these data types, see
“VRML Field Data Types”.
Note: The signal dimensions of a variable-size output signal of a VR Source block must
be the same size as, or smaller than, the initial state of the signal.
VRML Tree — This box shows the structure of the VRML file and the virtual world
itself.
Nodes that have names are marked with red arrows. You can access them from the
MATLAB interface. Nodes without names, but whose children are named, are also
marked with red arrows. This marking scheme makes it possible for you to find all
accessible nodes by traversing the tree using arrows. Other nodes have a blue dot before
their names.
Fields with readable values have check boxes. Use these check boxes to select the fields
that you want the Simulink software to monitor and to use to input values. For each field
that you select in the VRML Tree box, Simulink creates an output port in the VR Source
block. Simulink creates the output ports in the same order as the selected fields appear
in the VRML file.
Fields whose values cannot be read (because their parent nodes do not have names, or
because their values cannot be imported to Simulink) have an X-shaped icon.
Show node types — If you select this check box, node types are shown in the VRML
tree.
Show field types — If you select this check box, field types are shown in the VRML
tree.