Illustration by George Brower. Move the mouse left and right to zoom the SVG file. This shows how, unlike an imported image, the lines remain smooth at any size. 

def setup():
    size(640, 360)
    # The file "bot1.svg" must be in the data folder
    # of the current sketch to load successfully
    global bot
    bot = loadShape("bot1.svg")


def draw():
    background(102)
    translate(width / 2, height / 2)
    zoom = map(mouseX, 0, width, 0.1, 4.5)
    scale(zoom)
    shape(bot, -140, -140)