The basic principles are: first, in a certain range, a series of objects (spheres or ellipsoids) is randomly generated.
Of note, the positive base-the side of the phantom containing positive test objects -contains three test objects (spheres, hexagons, and cone) that have been printed on separate bases that fit into the positive base.
In the domestic violence scenario (see Fig. 9), the remote user was able to place 3D objects (spheres, cubes, arrows), to send 3D text messages, to display information about the persons involved in that domestic violence case and to take/save pictures using the camera of the local's HMD.
In the forensic investigation scenario (see Fig. 8), the remote user was able to place 3D objects (spheres, cubes, arrows), to write 3D text messages, to place laser stickers to mark areas that should be scanned by the local user, and to take/save/load photos from the local scene.
The MER provides spatial bounds for each cavity using a combination of simple three-dimensional objects (spheres, cylinders and cuboids) to determine a complex final shape.
The sensor on the hand was used to move a simple object (a sphere) within the virtual environment, while the sensor on the trunk was meant to provide a visual feedback to participants, helping them to maintain the upright position, without excessive bending.
AccuTrans 3D (v2014-1-0) [26] was used to remove high level objects (cone, sphere, and cylinders) from the VRML files and to convert a subset of the files (11,732) into STL format.
In this sense, in Content and Object the semantic sphere is dependent on the mental sphere.
The objects were spheres, cuboids, cylinders and cones, and their sizes lay between 25 and 75 m.
