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matplotlib and libsixel draw fig to terminal
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| # https://qiita.com/bjam_ha_nai/items/609924c91343a12d6769 | |
| # sudo apt install libsixel-bin libsixel-dev | |
| # pip install libsixel-python matplotlib | |
| import matplotlib | |
| import matplotlib.pyplot as plt | |
| import numpy as np | |
| from libsixel.encoder import Encoder as SixelEncoder | |
| from libsixel import SIXEL_OPTFLAG_WIDTH, SIXEL_OPTFLAG_HEIGHT | |
| from tempfile import NamedTemporaryFile | |
| def sixeldraw(width=None, height=None): | |
| with NamedTemporaryFile(prefix="sixel-") as fd: | |
| plt.savefig(fd, format="png") | |
| fd.flush() | |
| encoder = SixelEncoder() | |
| if width: | |
| encoder.setopt(SIXEL_OPTFLAG_WIDTH, width) | |
| if height: | |
| encoder.setopt(SIXEL_OPTFLAG_HEIGHT, height) | |
| encoder.encode(fd.name) | |
| def plot(): | |
| matplotlib.use("Agg") | |
| x = np.linspace(0, 1) | |
| y = x**2 | |
| plt.plot(x, y) | |
| sixeldraw() | |
| if __name__ == "__main__": | |
| plot() |
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