dGeomLowLevelControl

@brief Execute low level control operation for geometry.

The variable the dataSize points to must be initialized before the call. If the size does not match the one expected for the control class/code function changes it to the size expected and returns failure. This implies the function can be called with NULL data and zero size to test if control class/code is supported and obtain required data size for it.

dGeomCommonAnyControlCode applies to any control class and returns success if at least one control code is available for the given class with given geom.

Currently there are the folliwing control classes supported: @li dGeomColliderControlClass

For dGeomColliderControlClass there are the following codes available: @li dGeomColliderSetMergeSphereContactsControlCode (arg of type int, dGeomColliderMergeContactsValue_*) @li dGeomColliderGetMergeSphereContactsControlCode (arg of type int, dGeomColliderMergeContactsValue_*)

@param geom the geom to control @param controlClass the control class @param controlCode the control code for the class @param dataValue the control argument pointer @param dataSize the control argument size provided or expected @returns Boolean execution status @ingroup collide