Return the i'th geom contained within the space. i must range from 0 to dSpaceGetNumGeoms()-1. If any change is made to the space (including adding and deleting geoms) then no guarantee can be made about how the index number of any particular geom will change. Thus no space changes should be made while enumerating the geoms. This function is guaranteed to be fastest when the geoms are accessed in the order 0,1,2,etc. Other non-sequential orders may result in slower access, depending on the internal implementation.
a handle to the geom