Hienoi

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Hienoi is a framework offering an intuitive visual programming experience based around simple 2D particle physics.

Features

2D particle simulation.
GUI with OpenGL viewport.
user-friendly API.
support for per-particle user attributes.
fast when directly operating particles through NumPy.
compatible with both Python 2 and Python 3.

Usage

.. code-block:: python

import hienoi.application from hienoi import Vector2f def initialize_particle_simulation(sim): ... sim.add_particle(position=Vector2f(25.0, 0.0)) def update_particle_simulation(sim): ... particle = sim.particles[0] ... particle.force -= particle.position hienoi.application.run( ... particle_simulation={ ... 'initialize_callback': initialize_particle_simulation, ... 'postsolve_callback': update_particle_simulation, ... })

More commented examples can be found in the demos folder.

Installation

.. code-block:: bash

$ pip install hienoi

Demos

intro ^^^^^

.. image:: img/intro.gif :alt: intro

equilibrium ^^^^^^^^^^^

.. image:: img/equilibrium.gif :alt: equilibrium

trail ^^^^^

.. image:: img/trail.gif :alt: trail

orbit ^^^^^

.. image:: img/orbit.gif :alt: orbit

Hotkeys

+-----------------------+--------------------------------------------+ | space + LMB | move view | +-----------------------+--------------------------------------------+ | space + RMB | zoom view | +-----------------------+--------------------------------------------+ | d | change the display mode of the particles | +-----------------------+--------------------------------------------+ | f | fit the view to the scene | +-----------------------+--------------------------------------------+ | g | show/hide the grid | +-----------------------+--------------------------------------------+ | r | reset the view | +-----------------------+--------------------------------------------+