Generating Graphics

The output step is built on the popular Jinja and Nunjucks templating engines, which allows for the embedding of Python variables and for the use of Python-like expressions (eg. for-loops, if-statements).

If a developer wishes to display graphics, such as matplotlib plots, they can use a mecsimcalc function msc.print_plot provided in the following snippet of code, which exports the matplotlib figure into an html image.

import matplotlib.pyplot as plt
import numpy as np
import mecsimcalc as msc

def main(inputs):
    # Code to generate a plot using matplotlib (plt)

    # The following line uses the msc.print_plot() function to create an HTML image
    img = msc.print_plot(plt)
    return {"Image": img}

As an example, the following snippet of code creates and exports an image of the cos function between 0 and 2Pi.

import matplotlib.pyplot as plt
import numpy as np
import mecsimcalc as msc

def main(inputs):

    # Code to generate a plot using matplotlib (plt)
    x = np.arange(0,2*np.pi,0.1)
    y = np.cos(x)
    plt.plot(x,y,label="cos")
    plt.xlabel("x")
    plt.ylabel("y")

    # The following line uses the plt_show function to create an embeddable image
    img = msc.print_plot(plt)
    return {"Image": img}