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FASTARC: A generalization of FASTCIRC
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Michael J. Mahon
Dec 5, 2022, 5:48:49 PM12/5/22
to
Wouldn’t you know? Shortly after releasing FASTCIRC, a subroutine for
plotting HGR circles faster than you can say “cir…”, I realized that it
could be easily generalized to draw arcs of any length (0..64, where 0 is a
single point and 64 is a full circle) and any starting angle (0..63).
I also noticed that arcs are useful in many more cases than circles—like
rounded rectangles, for example. And, of course, a circle is just a special
case of an arc, so I’m superseding FASTCIRC with FASTARC, now available on
my website. (FASTCIRC will remain available, though it is now
“deprecated”.)
FASTARC has two entry points: FASTARC, for full generality, and FASTCIRC,
for convenient circles without the Start and Length parameters. It now
contains a more robust self-relocater.
As usual, there’s a full description, a Merlin listing, and a disk image
(.PO!) for download, containing Merlin source and several demo programs.
--
-michael - NadaNet 3.1 and AppleCrate II: http://michaeljmahon.com
plotting HGR circles faster than you can say “cir…”, I realized that it
could be easily generalized to draw arcs of any length (0..64, where 0 is a
single point and 64 is a full circle) and any starting angle (0..63).
I also noticed that arcs are useful in many more cases than circles—like
rounded rectangles, for example. And, of course, a circle is just a special
case of an arc, so I’m superseding FASTCIRC with FASTARC, now available on
my website. (FASTCIRC will remain available, though it is now
“deprecated”.)
FASTARC has two entry points: FASTARC, for full generality, and FASTCIRC,
for convenient circles without the Start and Length parameters. It now
contains a more robust self-relocater.
As usual, there’s a full description, a Merlin listing, and a disk image
(.PO!) for download, containing Merlin source and several demo programs.
--
-michael - NadaNet 3.1 and AppleCrate II: http://michaeljmahon.com
Oliver Schmidt
Dec 5, 2022, 6:46:03 PM12/5/22
to
> disk image (.PO!)
;-))
;-))
mmphosis
Dec 7, 2022, 12:24:01 PM12/7/22
to
Oliver Schmidt wrote:
>> disk image (.PO!)
>
> ;-))
>
I renamed the file to FASTARC.po
so that KEGS 1.11 was able to boot it.
>> disk image (.PO!)
>
> ;-))
>
I renamed the file to FASTARC.po
so that KEGS 1.11 was able to boot it.
Michael J. Mahon
Dec 7, 2022, 2:54:20 PM12/7/22
to
That’s wierd.
How did you like it? ;-)
mmphosis
Dec 7, 2022, 10:06:54 PM12/7/22
to
Michael J. Mahon wrote:
> mmphosis <mmph...@macgui.com> wrote:
>> Oliver Schmidt wrote:
>>>> disk image (.PO!)
>>>
>>> ;-))
>>>
>> I renamed the file to FASTARC.po
>> so that KEGS 1.11 was able to boot it.
>>
>>
>
> You mean that .po is acceptable but .PO is not?
> That’s wierd.
>
> How did you like it? ;-)
>
Linux file systems are case sensitive. :(
> mmphosis <mmph...@macgui.com> wrote:
>> Oliver Schmidt wrote:
>>>> disk image (.PO!)
>>>
>>> ;-))
>>>
>> I renamed the file to FASTARC.po
>> so that KEGS 1.11 was able to boot it.
>>
>>
>
> You mean that .po is acceptable but .PO is not?
> That’s wierd.
>
> How did you like it? ;-)
>
It works really well, and much more flexible being able to draw arcs. I was
really impressed with the drawing speed in the demos.
Michael J. Mahon
Dec 14, 2022, 3:37:20 AM12/14/22
to
Kent Dickey
Mar 13, 2023, 2:48:07 PM3/13/23
to
In article <mmphosis-...@macgui.com>,
Yeah, that was a Linux-only bug in KEGS, fixed in KEGS 1.19. Linux always
has case-sensitive filesystems, and KEGS was using the wrong subroutine
to check for ".po" extension, so it ignored case on Mac, but not on Linux.
Kent
has case-sensitive filesystems, and KEGS was using the wrong subroutine
to check for ".po" extension, so it ignored case on Mac, but not on Linux.
Kent
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