Abstract
This paper describes the methods of easy-to-understand programs visualization in 3D Visual Programming system “3D-PP&rdquo. 3D-PP visualize GHC program with virtual 3D space and 3D objects.To enable programers to detect arguments and input and output mode of arguments, we introduce “Argument objects&rdquo. To suppress dispersion of objects, we introduce a structuring method to enable a 3D object to contain a group of objects, called “Hierarchical program structure”. We implemented “Argument objects” and “Hierarchical program structure” in 3D-PP.
