ramp4 1.2

A simple library to make mp4 movies with matplotlib.pyplot. It use RAM instead of disk storage for the temporary images.

INTRODUCTION

A simple library to make mp4 movies with matplotlib.pyplot. It use RAM instead of disk storage for the temporary images.

INSTALLATION

pip install ramp4

GET STARTED

1. Get an instance of ramp4.

2. Add image with matplotlib using the ‘add’ method.

3. Render the video using the ‘render’ method.

4. Done

EXAMPLE 1

import numpy as np
import matplotlib.pyplot as plt
from ramp4 import ramp4

X = np.linspace(0, 5, 250)

movie = ramp4()
for i in np.linspace(0, 3.14, 200):
    plt.plot(X, np.cos(X+i))
    plt.xlim(0, 5)
    plt.ylim(-1, 1)
    plt.xlabel("x")
    plt.ylabel("cos(x+t)")
    movie.add(dpi=200)
    plt.close()

movie.render(outfile="video_example_2a.mp4", fps=50, close=False)
movie.render(outfile="video_example_2b.mp4", fps=100)

EXAMPLE 2

import numpy as np
import matplotlib.pyplot as plt
from ramp4 import ramp4

X = np.linspace(0, 5, 250)

movie = ramp4()
for i in np.linspace(0, 3.14, 200):
    fig, ax = plt.subplots(1, 1)
    ax.plot(X, np.sin(X+i))
    ax.set_xlim(0, 5)
    ax.set_ylim(-1, 1)
    ax.set_xlabel("x")
    ax.set_ylabel("sin(x+t)")
    movie.add(fig=fig, dpi=200)
    plt.close(fig=fig)

    movie.render(outfile="video_example1.mp4", fps=50)