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A simple browser-based hexapod robot simulator built from first principles

120 points by kscottz 6y ago

elihu 6y ago
This seems like a promising step towards a game based on the red spiders from xkcd[1, 2]. [1] https://xkcd.com/126/ https://xkcd.com/126/ [2] https://xkcd.com/427/ https://xkcd.com/427/
A4ET8a8uTh0 6y ago
It is both ridiculously awesome and terrifying at the same time.
hyperpallium 6y ago
hedapodia is the key insight
clairity 6y ago
neat! how do you (or would you) model active and passive forces at the joints and endpoints? edit: having helped build a hexapedal robot (way) back in the day, my first thought is modelling rather than games or whatnot.
javajosh 6y ago
After a quick scan of the github project I note the presence of a lot of python - in what sense is this system "browser-based"?
- leggomylibro 6y ago
  Some applications that don't need a complex GUI use web browsers as a frontend because they are cross-platform and they come with a bunch of 'free' UI elements like buttons, text boxes, sliders, etc. You can also style things pretty easily with CSS and JS, to a point. It's a flexible way of writing one-off applications; you can run them locally, remotely, or on someone else's machine in the cloud. One useful example is Tabula[1], a browser-based utility for extracting tabular data from PDFs. As it is often used by journalists and other organizations that don't want to leak the data they are analyzing all over the place, it is easy to run locally instead of uploading files to their website. You just point the browser to 'localhost:port' while the server is running. [1]: https://github.com/tabulapdf/tabula https://github.com/tabulapdf/tabula
- jotux 6y ago
  http://hexapod-robot-simulator.herokuapp.com/inverse-kinematics http://hexapod-robot-simulator.herokuapp.com/inverse-kinemat...
- MisterBiggs 6y ago
  It uses Plotly Dash[0] which is a python library for making web apps. Its mostly used for data visualization but this project definitely pushes it harder than anything else I've seen. [0] - https://plotly.com/dash/ https://plotly.com/dash/
etaioinshrdlu 6y ago
I'm triggered by all the spider emoji. Because spiders are not hexapods.
- heretoo 6y ago
  three legged dogs are still dogs :)
- artifact_44 6y ago
  Sorry.. Here is a simple quadruped to ease your suffering: http://vectorslave.com/exobot/ http://vectorslave.com/exobot/
bernardv 6y ago
Creative use of Dash!

120 points by kscottz 6y ago

This seems like a promising step towards a game based on the red spiders from xkcd[1, 2]. [1] https://xkcd.com/126/ https://xkcd.com/126/ [2] https://xkcd.com/427/ https://xkcd.com/427/

A4ET8a8uTh0 6y ago

It is both ridiculously awesome and terrifying at the same time.

hyperpallium 6y ago

hedapodia is the key insight

clairity 6y ago

neat! how do you (or would you) model active and passive forces at the joints and endpoints? edit: having helped build a hexapedal robot (way) back in the day, my first thought is modelling rather than games or whatnot.

javajosh 6y ago

After a quick scan of the github project I note the presence of a lot of python - in what sense is this system "browser-based"?

leggomylibro 6y ago
Some applications that don't need a complex GUI use web browsers as a frontend because they are cross-platform and they come with a bunch of 'free' UI elements like buttons, text boxes, sliders, etc. You can also style things pretty easily with CSS and JS, to a point. It's a flexible way of writing one-off applications; you can run them locally, remotely, or on someone else's machine in the cloud. One useful example is Tabula[1], a browser-based utility for extracting tabular data from PDFs. As it is often used by journalists and other organizations that don't want to leak the data they are analyzing all over the place, it is easy to run locally instead of uploading files to their website. You just point the browser to 'localhost:port' while the server is running. [1]: https://github.com/tabulapdf/tabula https://github.com/tabulapdf/tabula
jotux 6y ago
http://hexapod-robot-simulator.herokuapp.com/inverse-kinematics http://hexapod-robot-simulator.herokuapp.com/inverse-kinemat...
MisterBiggs 6y ago
It uses Plotly Dash[0] which is a python library for making web apps. Its mostly used for data visualization but this project definitely pushes it harder than anything else I've seen. [0] - https://plotly.com/dash/ https://plotly.com/dash/

etaioinshrdlu 6y ago

I'm triggered by all the spider emoji. Because spiders are not hexapods.

heretoo 6y ago
three legged dogs are still dogs :)
artifact_44 6y ago
Sorry.. Here is a simple quadruped to ease your suffering: http://vectorslave.com/exobot/ http://vectorslave.com/exobot/

bernardv 6y ago

Creative use of Dash!