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- from __future__ import print_function, absolute_import, division
- from rgbmatrix import RGBMatrix, RGBMatrixOptions
- from rgbmatrix import graphics
- def setup_matrix(**kwargs):
- o = RGBMatrixOptions()
- o.chain_length = 4
- for k, v in kwargs.iteritems():
- setattr(o, k, v)
- matrix = RGBMatrix(options=o)
- matrix.Clear()
- return matrix
- def scipy_demo():
- from PIL import Image
- import numpy as np
- from scipy.ndimage.interpolation import rotate
- from scipy.ndimage.filters import gaussian_filter
- draw = lambda pixels: matrix.SetImage(Image.fromarray(pixels.swapaxes(0, 1), 'RGB'))
- pixels = np.zeros(DIM, dtype=np.uint8)
- pixels[:, :, :] = (np.random.random(DIM) > 0.95) * 255
- for i in range(361):
- smooth = (180 - abs(i - 180)) / 80
- draw(gaussian_filter(rotate(pixels, i, order=0), [smooth, smooth, 0]))
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