Sorry if I bother you with silly questions. Can any experts on this
net clear my confusiona about so called, Image Models, User Interface,
and Graphics Library,
-->Display PostScript is basically an Imgae Model, but is also used as a
User Interface. X Window of course is a User Interface, but is inevitablly has a
built-in Image Model. However, there are a lot of debates over the advantages
of X window and DPS, and furthermore, there comes a version of DPS under X Window....
-->GL or OpenGL is a Graphics Library, but also contains some routines for
handling User Interface. If we put in X server capabilities for rendering, shading,
.... then do we still need a graphics library? Or if a graphics library has a rich
set of user interfact functions, can it be a stand alone user interface?
-->How does a graphics library like OpenGL coexists with a image model like
DPS, or a user interface like X window?