Newsgroups: comp.sys.next
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!stanford.edu!neon.Stanford.EDU!ly
From: ly@neon.Stanford.EDU (Eric Ly)
Subject: Re: How to put a dot on the NeXT screen ( ***SHORT*** :-)
Message-ID: <1991Jun5.072816.11756@neon.Stanford.EDU>
Organization: Computer Science Department, Stanford University, Ca , USA
References: <1991Jun4.134204.28921@casbah.acns.nwu.edu> <1991Jun5.055531.6189@fcom.cc.utah.edu>
Date: Wed, 5 Jun 1991 07:28:16 GMT
Lines: 30

In article <1991Jun5.055531.6189@fcom.cc.utah.edu> burchard@math.utah.edu (Paul Burchard) writes:
>In article <1991Jun4.134204.28921@casbah.acns.nwu.edu>  
>jimmyc@casbah.acns.nwu.edu (James Choi) writes:
>> 
>> I am having trouble putting a dot on the NeXT screen.  Could someone show
>> me how to do it with a compilable sample source code?
>
[explanation deleted...]

Actually, there's a much more efficient way of doing it.  Let's say
you want to put a dot at a location given by an NXPoint.  Then, the
following function will put your dot on the screen:

void doDot(const NXPoint *point)
{
    NXRect rect;

    rect.origin = point->origin;
    rect.size.width = rect.size.height = 1.0;
    NXRectFill(&rect);
}

It's more efficient for various reasons, but basically, it uses one
optimized Display PostScript operator rather than several PostScript
operators.



						Eric Ly
						Stanford University