some quads are not... think boomarang-like... I think there is a technical term for that class of quad... also think if a "bowtie", also technically a quad but potentially having "negative area".
On 5/13/20 9:13 PM, thompnicks...@gmail.com wrote: > > And quadralaterals aren’t convex? I don’t get it. > > > > Nicholas Thompson > > Emeritus Professor of Ethology and Psychology > > Clark University > > thompnicks...@gmail.com <mailto:thompnicks...@gmail.com> > > https://wordpress.clarku.edu/nthompson/ > > > > > > *From:* Friam <friam-boun...@redfish.com> *On Behalf Of *Angel Edward > *Sent:* Wednesday, May 13, 2020 7:40 PM > *To:* The Friday Morning Applied Complexity Coffee Group > <friam@redfish.com> > *Subject:* Re: [FRIAM] PSC Tornado Visualization (2008) [720p] - YouTube > > > > Because triangles are convex they are guaranteed to be rendered > correctly. Every modern graphics system whether hardware or software > is based on using triangles as the basic element. > > __________ > > Ed Angel > > Founding Director, Art, Research, Technology and Science Laboratory > (ARTS Lab) > Professor Emeritus of Computer Science, University of New Mexico > > 1017 Sierra Pinon > Santa Fe, NM 87501 > 505-984-0136 (home) > edward.an...@gmail.com <mailto:edward.an...@gmail.com> > 505-453-4944 (cell) > http://www.cs.unm.edu/~angel > > > > On May 13, 2020, at 7:28 PM, Frank Wimberly <wimber...@gmail.com > <mailto:wimber...@gmail.com>> wrote: > > > > I'm not Marcus but in finite element analysis the discretization > of a 2 dimensional region is always done with triangles. It's much > more flexible than rectangular grids, to oversimplify. > > > > Frank > > --- > Frank C. Wimberly > 140 Calle Ojo Feliz, > Santa Fe, NM 87505 > > 505 670-9918 > Santa Fe, NM > > > > On Wed, May 13, 2020, 7:13 PM <thompnicks...@gmail.com > <mailto:thompnicks...@gmail.com>> wrote: > > Marcus, > > > > Can you explain why the basic unit is a triangle? > > > > Any Peircean would LOVE it. > > > > n > > > > Nicholas Thompson > > Emeritus Professor of Ethology and Psychology > > Clark University > > thompnicks...@gmail.com <mailto:thompnicks...@gmail.com> > > https://wordpress.clarku.edu/nthompson/ > > > > > > *From:* Friam <friam-boun...@redfish.com > <mailto:friam-boun...@redfish.com>> *On Behalf Of *Marcus Daniels > *Sent:* Wednesday, May 13, 2020 6:00 PM > *To:* The Friday Morning Applied Complexity Coffee Group > <friam@redfish.com <mailto:friam@redfish.com>> > *Subject:* Re: [FRIAM] PSC Tornado Visualization (2008) [720p] > - YouTube > > > > Check out that WaPost article for the state-of-the-art. (The > new Unreal Engine.) > > > > *From: *Friam <friam-boun...@redfish.com > <mailto:friam-boun...@redfish.com>> on behalf of Angel Edward > <edward.an...@gmail.com <mailto:edward.an...@gmail.com>> > *Reply-To: *The Friday Morning Applied Complexity Coffee Group > <friam@redfish.com <mailto:friam@redfish.com>> > *Date: *Wednesday, May 13, 2020 at 4:58 PM > *To: *The Friday Morning Applied Complexity Coffee Group > <friam@redfish.com <mailto:friam@redfish.com>> > *Subject: *Re: [FRIAM] PSC Tornado Visualization (2008) [720p] > - YouTube > > > > I vaguely remember plot 3d. No one renders today the way it > did. Cray was less than a PC with a decent graphics card. > > > > Ed > > __________ > > Ed Angel > > Founding Director, Art, Research, Technology and Science > Laboratory (ARTS Lab) > Professor Emeritus of Computer Science, University of New Mexico > > 1017 Sierra Pinon > Santa Fe, NM 87501 > 505-984-0136 (home) edward.an...@gmail.com > <mailto:edward.an...@gmail.com> > 505-453-4944 (cell) http://www.cs.unm.edu/~angel > > > > On May 13, 2020, at 5:51 PM, Frank Wimberly > <wimber...@gmail.com <mailto:wimber...@gmail.com>> wrote: > > > > Let me revise that a little bit. There was a > visualization of the rider's view of a roller coaster ride > that ran on a Cray supercomputer. The purpose was to > demonstrate the capability and speed of a Lisp-based 3D > renderer called Plot-3D or P3D or something similar. Do > you know what I'm talking about, Ed? > > --- > Frank C. Wimberly > 140 Calle Ojo Feliz, > Santa Fe, NM 87505 > > 505 670-9918 > Santa Fe, NM > > > > On Wed, May 13, 2020, 5:31 PM <thompnicks...@gmail.com > <mailto:thompnicks...@gmail.com>> wrote: > > Thanks, Frank. > > > > NIck > > > > Nicholas Thompson > > Emeritus Professor of Ethology and Psychology > > Clark University > > thompnicks...@gmail.com <mailto:thompnicks...@gmail.com> > > https://wordpress.clarku.edu/nthompson/ > > > > > > *From:* Friam <friam-boun...@redfish.com > <mailto:friam-boun...@redfish.com>> *On Behalf Of > *Frank Wimberly > *Sent:* Wednesday, May 13, 2020 3:35 PM > *To:* The Friday Morning Applied Complexity Coffee > Group <friam@redfish.com <mailto:friam@redfish.com>> > *Subject:* Re: [FRIAM] PSC Tornado Visualization > (2008) [720p] - YouTube > > > > You should take it seriously but I'm biased. I don't > think PSC let's its supercomputers be used for eye > candy. They didn't when I worked there and they were > accountable to NSF. > > --- > Frank C. Wimberly > 140 Calle Ojo Feliz, > Santa Fe, NM 87505 > > 505 670-9918 > Santa Fe, NM > > > > On Wed, May 13, 2020, 3:26 PM <thompnicks...@gmail.com > <mailto:thompnicks...@gmail.com>> wrote: > > Dear Phellow Phriammers, > > Is this eyecandy, or should I take it seriously? > > > https://www.youtube.com/watch?v=0gQutQQiuAI&feature=youtu.be > > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- > -. -.. -..-. -.. .- ... .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 > bit.ly/virtualfriam <http://bit.ly/virtualfriam> > unsubscribe > http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. > -.. -..-. -.. .- ... .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > <http://bit.ly/virtualfriam> > unsubscribe > http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. -.. > -..-. -.. .- ... .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > <http://bit.ly/virtualfriam> > unsubscribe > http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ > > > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. -.. -..-. > -.. .- ... .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > <http://bit.ly/virtualfriam> > unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. -.. -..-. -.. > .- ... .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > <http://bit.ly/virtualfriam> > unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ > > > > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. -.. -..-. -.. .- ... > .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/
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