Bullet Physics is a nice way to represent an environment and to represent the agents. Physical interaction between agents and/or static objects is directly reported. Just compile with emscripten if you want it in a web browser..
https://github.com/kripken/ammo.js From: Friam [mailto:friam-boun...@redfish.com] On Behalf Of Owen Densmore Sent: Wednesday, July 08, 2015 7:11 PM To: Brent Auble; The Friday Morning Applied Complexity Coffee Group Cc: wedt...@redfish.com Subject: Re: [FRIAM] github pages... Brent: way WAY astute observations and info, thanks 10^6! How's this for an idea: follow Ed's Mooc. No need to do the homework etc, just to get informed as to webgl's core capabilities. It's just started and the videos are there for the watching and a standard vocabulary. The GPU is a standard worth knowing. Then we can (a group of us here interested in the topic .. hopefully Pietro who has a LOT of ABM experience .. as does a lot of Italy) put together some ideas for 3D ABM. Certainly Uri and Seth were interested in it, but didn't have time to do the research. Thus they use 2.5 D "pop-out" for standard NetLogo .. way nice .. and agree that beyond their "cube patches", they hadn't time for enough research into the matter. ABM is basically "data all the way down" with dynamic interaction within the data. 3D fits into this, I think. Maybe we should just think of models that could use 3D? RedFish has a few fascinating ideas in the works like point-clouds as computation. Thanks again. -- Owen On Wed, Jul 8, 2015 at 6:32 PM, Brent Auble <br...@auble.net<mailto:br...@auble.net>> wrote: Hi Owen, we've done some work using Processing to do 3D visualization in NetLogo -- both by opening an Processing window from a running NetLogo model and by running NetLogo headless from a Processing program (and doing real-time visualization of the running model). Of course, NetLogo uses Processing for some of its built-in 3D visualization, but the version is somewhat old and I don't think Uri et al have put much effort into the 3D side of things recently, so our approach gives a bit more flexibility. I'm happy to share the paper we put together on it if you or anyone else is interested. The question of what a 3D ABM is actually useful for is surprisingly more challenging. We put together a simple dynamic network model and used the 3D to visualize the connections between and movement of the nodes from one state to another (of 3 possible states), so we had something like a sandwich of dots with lines that we could rotate around and zoom in on. It was something that made it a bit easier to understand what was going on in the model and between the nodes -- more a reporting mechanism than an inherent part of the model. Well, that, plus it looked cooler. Using 3D as an inherent part of the model's behavior is another thing entirely. In that case, the model would require the physical 3 dimensional location of each agent (and the environment) to be critical to the behavior of the agents -- and something that couldn't be easily represented in 2D with the 3rd dimension handled separately. We started to look at using animation software, such as Maya, to do the modeling, but didn't make much progress before our animator moved on. Maya or 3DS Max allow for Python programming, but it isn't exactly ideal for ABM work. Brent ________________________________ From: Owen Densmore <o...@backspaces.net<mailto:o...@backspaces.net>> To: The Friday Morning Applied Complexity Coffee Group <friam@redfish.com<mailto:friam@redfish.com>> Cc: "wedt...@redfish.com<mailto:wedt...@redfish.com>" <wedt...@redfish.com<mailto:wedt...@redfish.com>> Sent: Wednesday, July 8, 2015 5:31 PM Subject: Re: [FRIAM] github pages... Hi Pietro, great to hear from you. Lets try to get together next time I travel to Italy. I generally stay in Camerano, near Ancona, but often spend time in Venice with Fabio or lately in Padova .. so we'd not be that far apart via train. SLAPP is quite nice. I wonder if you would be interested in a NetLogo inspired JavaScript ABM framework: http://agentscript.org<http://agentscript.org/>. I need help thinking about its future. I'm taking a break from it for a while, diving into a webgl mooc given by Ed Angel based on material from the latest edition, 7, of his Interactive Computer Graphics text .. all using webgl. Here's the url of the mooc if you'd like to follow along: https://www.coursera.org/course/webgl A major goal for a few of us is how to move ABM to 3D. We spoke with Uri and Seth at NetLogo and they hadn't enough time to really research how to best use 3D. Great to hear from you. -- Owen On Wed, Jul 8, 2015 at 11:11 AM, Pietro Terna <pietro.te...@unito.it<mailto:pietro.te...@unito.it>> wrote: Dear all, sometimes I reappear ... My experience is very positive, with https://github.com/terna/SLAPP and GitHum program in my Mac. Best, Pietro Il 08/07/15 18:55, Gillian Densmore ha scritto: Just wondering what other peoples experience with githubs pages system has been. ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com -- The world is full of interesting problems to be solved! Home page http://web.econ.unito.it/terna ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com
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