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

栏目: IT技术 · 发布时间: 4年前

Mithi's Hexapod Robot Simulator

A simple browser-based hexapod robot simulator built from first principles A simple browser-based hexapod robot simulator built from first principles A simple browser-based hexapod robot simulator built from first principles A simple browser-based hexapod robot simulator built from first principles
STATUS FEATURE DESCRIPTION
:tada: Forward Kinematics Given the angles of each joint, what does the robot look like?
:tada: Inverse Kinematics What are the angles of each joint to make the robot look the way I want? Is it even possible? Why or why not?
:tada: Uniform Movements If all of the legs behaved the same way, how will the hexapod robot as a whole behave?
:tada: Customizability Set the dimensions and shape of the robot's body and legs. (6 parameters)
:tada: Usability Control the camera view, pan, tilt, zoom, whatever.
:tada: Simplicity Minimal dependencies. Depends solely on Numpy for calculations. Uses only Plotly Dash for plotting, Dash can be safely replaced if a better 3d plotting library is available.
:exclamation: Stability Check (WIP) If we pose the robot in a particular way, will it fall over?
:exclamation: Fast Okay, it's not as fast as I wanted, but when run locally, it's okay
:exclamation: Bug-free Fine, right now there's still room for improvement
:exclamation: Well-tested Yeah, I need to compile test cases first

Preview

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

Requirements

  • Python 3.8.1
  • Plotly Dash 1.10.0
  • Plotly Dash Daq 0.4.0
  • Numpy 1.18.1
  • See also ./requirements.txt

Run

$ python index.py
Running on http://127.0.0.1:8050/

:warning: Known Issues

Conventions and Algorithms

Screenshots

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

Notes

  • :exclamation: Now live on https://hexapod-robot-simulator.herokuapp.com ! BUT (and a big one) I highly suggest that you run it locally. When run locally, it's pretty speedy! On the other hand, the link above is barely usable. Might convert this to to be a fully client-side Javascript app later, maybe?

  • :exclamation: This implementation uses matrices, NOT quaternions. I'm aware that quaternions is far superior in every single way. In the (un)forseeable future, maybe?

  • :exclamation: Frankly, My IK algorithm isn't all that great, it's just something I came up with based on what I remember back in college plus browsing through the Mathematics Stack Exchange . It might not be the best, but it's the most intuitive that I can think of. If you want something closer to the state-of-the-art, maybe checkout Unity's Fast IK or ROS IKFast .

  • I believe that the idea that it's best to be kind to one another shouldn't be controversial. And I shouldn't be afraid to say that.

Contributors


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