Simulink 3D Animation: Control Object Property Access (R2

How do I control the access to my object properties created in the Simulink 3D Animation Toolbox 5.1 (R2009b)?

sanjana asked: 2021-08-14 vr , virtual , reality , coordinates , geometry , object , access , command , line

Control access to your Simulink 3D Animation Toolbox object properties (version 5.1 R2009b). Learn how to manage object properties and enhance your simulations!

Expert Answer

Neeta Dsouza answered . 2025-07-11 11:24:49

This enhancement has been incorporated in Release 2008b. For previous product releases, read below for any possible workarounds:

You must add the DEF statement in the VRML file wherever you want the ability to modify something from the MATLAB command line. For example, view the MATLAB file from the demo "Heat Transfer Visualization" (which changes the geometry of the object) with the following command:

edit vrheat.wrl

At line 50, "DEF IFS_Coords" has been added to define a node and name it IFS_Coords. You can then edit this property using the standard methods:

world = vrworld('vrheat.wrl')

open(world)

view(world);vrdrawnow

nodes(world)

ifscoordsnode = vrnode(world, 'IFS_Coords')

fields(ifscoordsnode)

ifscoordsnode.point

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