The parameters of a volume may depend on the physical tree which leads to this volume. The dimensions of one of the slices of a cone divided along Z depends on which slice we consider. So a volume is completely defined only if we specify the path in the tree. This is composed by the name and copy number of the volumes containing the one we are interested in, from the first mother.
Given this information, the routine GLVOLU is capable to fill the common /GCVOLU/, and the structure JGPAR with the actual parameters of the instance chosen.
S.Giani, S.Ravndal