The following table summarizes the parts of the PHIGS standard tested by successive versions of the PVT. "na" indicates "not applicable", "--" indicates area not yet (if ever) covered by PVT. Coverage is the same for Fortran and C.
Passive Interactive
01. Opening and closing PHIGS v1.0 na
02. Manipulating the CSS v1.0 na
03. Archives v1.0 na
04. Graphical Output v1.0 v2.0
05. Workstation Control v1.0 --
06. Geometry
06.01 Modelling v1.0 v2.1
06.02 Viewing v1.0 --
06.03 Workstation transformations v1.0 --
07. Input -- --
08. Metafiles -- na
09. Error handling v2.1 na
10. Escape -- --
11. Language-specific features v1.0 na
PHIGS-PLUS -- --