MagneticPendulumBasins
所属分类:GPU/显卡
开发工具:Python
文件大小:609KB
下载次数:0
上传日期:2013-11-04 14:44:24
上 传 者:
sh-1993
说明: 磁摆吸力盆CUDA发生器
(CUDA generator of basins of attraction of magnetic pendulum)
文件列表:
.project (376, 2013-10-28)
.pydevproject (469, 2013-10-28)
.settings (0, 2013-10-28)
.settings\org.eclipse.ltk.core.refactoring.prefs (104, 2013-10-28)
basins.png (336625, 2013-10-28)
example.png (204712, 2013-10-28)
src (0, 2013-10-28)
src\__init__.py (0, 2013-10-28)
src\basins.py (6202, 2013-10-28)
src\functions.py (225, 2013-10-28)
src\graphics.py (4771, 2013-10-28)
src\integrators.py (595, 2013-10-28)
src\main.py (2965, 2013-10-28)
src\models.py (3122, 2013-10-28)
src\visualizer.py (12649, 2013-10-28)
test (0, 2013-10-28)
test\test_image.png (59372, 2013-10-28)
test\test_image_1.png (84, 2013-10-28)
test\test_image_2.png (7099, 2013-10-28)
test\test_image_3.png (113, 2013-10-28)
test\unit_tests.py (9243, 2013-10-28)
MagneticPendulumBasins
======================
MagneticPendulumBasins is a CUDA generator of "basins of attraction" of magnetic pendulum for arbitrary number of magnets. Pendulum model is simplified and its description can by found here: http://beltoforion.de/magnetic_pendulum/magnetic_pendulum_en.html
![Alt text](https://github.com/example.png "Example result")
Installation
============
Simply clone this repository and run either `python src/main.py` (png files generator) or `python src/vizualizer.py` (OpenGL visualizer).
Note that the latter is experimental at the moment. It may also require you to:
pip install PyDispatcher PyVRML97 OpenGLContext
Simple example
==============
Similar code as the following example can be found in 'main.py':
# Parameters: pos_x, pos_y, magnet strength constant
magnet1 = MagnetModel(1.0, 0.0, 1.5)
magnet2 = MagnetModel(-1.0, -1.0, 1.5)
magnet3 = MagnetModel(-1.0, 1.0, 1.5)
magnets = [magnet1, magnet2, magnet3]
# Parameters: friction, gravity pullback, plane distance
pendulum = PendulumModel(0.3, 0.5, 0.25)
pendulum.magnets = magnets
# Parameters: time_step
integrator = EulerIntegrator(0.01)
# Paramaters: r, g, b - startign color definition
#image_generator = BasicImageGenerator(255, 0, 0) # just colors the regions
image_generator = AdvancedImageGenerator(255, 0, 0) # colors and adds gradient based on trajectory length
image_generator.draw_grid = False
image_generator.antialiasing = True # if true image is 2x smaller
# Parameters: simulation size, image size in pixels
basins_generator = BasinsGenerator(5, 2000)
basins_generator.pendulum_model = pendulum
basins_generator.integrator = integrator
basins_generator.image_generator = image_generator
# Parameters: initial velocity vect, simulation time, delta, kernel sim time
basins_generator.calculate_basins([0, 0], 50, 0.4, 2)
# Parameters: file_name
basins_generator.draw_basins("basins")
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