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Apple hi-res plotting- another good page.

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  • Bill Degnan
    I was also sent this link, very useful. http://www.atariarchives.org/cgp/Ch03_Sec02.php I had ignored the Atari Archives. I won t make that mistake again.
    Message 1 of 1 , Aug 29 10:39 AM
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      I was also sent this link, very useful.
      http://www.atariarchives.org/cgp/Ch03_Sec02.php

      I had ignored the Atari Archives. I won't make that mistake again.

      Bill

      -------- Original Message --------
      > From: Mason Taube <mason_taube@...>
      > Sent: Friday, August 29, 2008 1:08 PM
      > To: billdeg@...
      > Subject: Re: [midatlanticretro] Biorhythm - possible to output a tight hi-res sin curve - need code snippet
      >
      > yep, computers (still) don't handle continuous functions.
      >
      >
      >
      > ----- Original Message ----
      > From: Bill Degnan <billdeg@...>
      > To: mason_taube@...
      > Sent: Friday, August 29, 2008 12:36:38 PM
      > Subject: Re: [midatlanticretro] Biorhythm - possible to output a tight hi-res sin curve - need code snippet
      >
      > Wonderful. I may even have this issue of Compute! This confirms that a programmer needs to use the looping technique I suspected in my first letter.
      >
      > -------- Original Message --------
      > > From: Mason Taube <mason_taube@...>
      > > Sent: Friday, August 29, 2008 12:21 PM
      > > To: Bill Degnan <billdeg@...>
      > > Subject: Re: [midatlanticretro] Biorhythm - possible to output a tight hi-res sin curve - need code snippet
      > >
      > > easy...
      > > http://www.atarimagazines.com/compute/issue21/Plotting_Polar_Graphs_With_The_Apple_II.php
      > >
      > >
      > >
      > > ----- Original Message ----
      > > From: Bill Degnan <billdeg@...>
      > > To: midatlanticretro@yahoogroups.com
      > > Sent: Friday, August 29, 2008 11:39:43 AM
      > > Subject: [midatlanticretro] Biorhythm - possible to output a tight hi-res sin curve - need code snippet
      > >
      > >
      > > Is it possible on an Apple II using hi-res mode to draw a nice tight sin wave?...and if so Does anyone have a code snippet example? I don't like the blocky low-res output, I would prefer the hi-res approach.
      > >
      > > If HPLOT is used only to draw straight lines, how does one draw curves in hi-res mode using an Apple II AppleSoft BASIC?
      > >
      > > I will continue to search the typical places. If anyone knows of a magazine with an example, I may have it too. I could write the curve pixel by pixel using a sin function to set the HPLOT variables, is that how it's done?. Otherwise the program is pretty much done, and is Y2K compliant.
      > >
      > > Bill
      > >
      > >
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