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Date:Mon Feb 12 09:03:43 1994 
Subject:Re: 3D Graphics libraries/functions for poplog 
From:"A.Sloman" 
Volume-ID:940212.02 

> Greeting one and all!
>
> I am not a regular subscriber to this newsgroup, but would request
> anyone out there to provide me with any information that they might
> have regarding 3D graphics libraries/functions for poplog.

There is no 3D graphic library that is a regular part of Poplog. There's
quite a good collection of 2D graphic facilities, including the recently
added GO (Graphical Object) system which provides object oriented
graphics. I.e. you can create objects like circles or polygons that
corresond to data-structures, and then either modify the object on the
screen with the mouse, in which case the data-structure changes
automatically, or modify the data structure, in which case the picture
on the screen changes. This library uses Steve Knight's Objectclass
extension to Pop-11. These facilities are part of Poplog version 14.5,
which I gather must be shipping now or very soon.

I believe there are individual users of Poplog who have developed
3-D Graphical facilities based on the 2-D facilities, but they are not
part of Poplog. For example I have seen a 3-D contour drawing package
produced by one of David Young's students at Sussex, and I suspect
there are several others. E.g. David Hogg at Leeds University used
to have a 3-D graphics library for Poplog, but I don't know its
current state.

Aaron