python类patheffects()的实例源码

def sticker(t,
            a,
            x=0,
            y=0,
            ha='left',
            va='bottom',
            transform=None,
            **kwargs):

    if not transform:
        transform=a.transAxes
    o = list()
    colorin=['None','None']
    for i,c in enumerate(['w','k']):
        o.append( a.text(x,y,t,
            fontweight='bold',
            zorder=999,#            alpha=0.4,
            color=colorin[i],
            ha=ha,va=va,
            #fontsize='large',
            transform=transform,
            path_effects=[matplotlib.patheffects.withStroke(linewidth=1.5-i, foreground=c)],
            **kwargs))

    return o