Pendulum Studio

Voladd

About this app

Simulate the motion of nine different pendulum systems in real time on your phone.
Use the simulation as a live wallpaper (to be set from device's settings).

Included systems:
1) Mathematical pendulum (2D): the simplest pendulum.
2) Pendulum wave effect (3D): when multiple pendulums are combined a peculiar wave effect appears.
3) Spherical pendulum (3D): a three-dimensional generalization of the mathematical pendulum.
4) Spring pendulum (2D): a mass connected to a spring.
5) Spring pendulum (3D): a mass connected to a spring in 3D.
6) Double pendulum (2D): the simplest example of a system which exhibits chaotic motion and is highly sensitive to the initial conditions.
7) Double spherical pendulum (3D): a three-dimensional generalization of the double pendulum.
8) Spring mathematical pendulum (2D): a rod attached to a spring.
9) Spring spherical pendulum (3D): a rod attached to a spring in 3D.

Features:
- All simulations are performed in real time by numerically solving the Lagrange equations of motion.
- Use the accelerometer of your device for dynamical determination of the gravity force.
- Take into the account the friction force to see the damping of the pendulum motion (recommended when using sensor gravity).
- Use your fingers to interactively change the positions of the pendulums.
- Use pinch to zoom gesture.
- All of the parameters for each system can be modified in the preferences.

Acknowledgements:
OpenGL tutorials at http://www.learnopengles.com/
ColorPickerView library at https://github.com/danielnilsson9/color-picker-view

Source code of the app is available at https://github.com/vlvovch/pendulum-studio

Ratings and reviews

Amazingly optimized. Could you provide a better design for the 3D models? Like create an actual 3D view, maybe add XYZ axis to better visualise? I would gladly pay for an app like this. Also, can I add more pendulum joints?

The app itself is good but I wanted it for the live wallpaper, but it doesn't seem to work right. I can't use touch or gravity interaction! I tried what the developers said in response but it still doesn't work..

This is great, my only little complaint is the 100 pendulum limit. It sounds dumb but I want to see more of them. Still absolutely 5 stars though

What's new

Buttons can auto-hide now