Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!mailrus!tut.cis.ohio-state.edu!im4u!ut-sally!ut-emx!bph
From: bph@ut-emx.UUCP (Butler Hine)
Newsgroups: comp.graphics
Subject: Re: 4014 stuff
Message-ID: <1822@ut-emx.UUCP>
Date: 24 Apr 88 03:06:22 GMT
References: <166@anselm.UUCP> <206300001@prism>
Reply-To: bph@emx.UUCP (hine  butler)
Organization: UTexas Computation Center, Austin, Texas
Lines: 25
Summary: There is a way to erase

[Do I still need this first line?]

This is out of a Retrographics Manual, which I always assumed emulated
a Tek 4014 terminal:

	DATA LEVEL:
		ESC/Ps d
	where:
		Ps = 0 --> Dots on
		     1 --> Dots off
		     2 --> Complement
		     3 --> Replace

Thus, when either in Vector or Point plot mode, redrawing with ESC/2d set
will erase what you've just drawn.  I've used this in several programs, and
it seems to work fine, but I must admit that I don't think I've ever seen
a real live Tek4014 (just other things which emulate it).  Hope this helps.


-- 
                           Butler Hine
   Gabba,                  Dept. of Astronomy, University of Texas at Austin
     Gabba,                Austin, Tx  78712    (512) 471-4419
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