Function plot_children

site-packages/matplotlib/_layoutbox.py:692–735

Simple plotting to show where boxes are

(fig, box, level=0, printit=True)

def plot_children(fig, box, level=0, printit=True):
    '''
    Simple plotting to show where boxes are
    '''
    import matplotlib
    import matplotlib.pyplot as plt

    if isinstance(fig, matplotlib.figure.Figure):
        ax = fig.add_axes([0., 0., 1., 1.])
        ax.set_facecolor([1., 1., 1., 0.7])
        ax.set_alpha(0.3)
        fig.draw(fig.canvas.get_renderer())
    else:
        ax = fig

    import matplotlib.patches as patches
    colors = plt.rcParams["axes.prop_cycle"].by_key()["color"]
    if printit:
        print("Level:", level)
    for child in box.children:
        rect = child.get_rect()
        if printit:
            print(child)
        ax.add_patch(
            patches.Rectangle(
                (child.left.value(), child.bottom.value()),   # (x,y)
                child.width.value(),          # width
                child.height.value(),          # height
                fc='none',
                alpha=0.8,
                ec=colors[level]
            )
        )
        if level > 0:
            name = child.name.split('.')[-1]
            if level % 2 == 0:
                ax.text(child.left.value(), child.bottom.value(), name,
                        size=12-level, color=colors[level])
            else:
                ax.text(child.right.value(), child.top.value(), name,
                        ha='right', va='top', size=12-level,
                        color=colors[level])

        plot_children(ax, child, level=level+1, printit=printit)