def __doc_example1__(images):
from gamera.toolkits.vector.plugins import transformation, render
from gamera.core import Image, RGBPixel
onebit = images[ONEBIT]
paths = onebit.potrace()
t = transformation.scale(3, 3)
new_image = Image(0, 0, onebit.nrows*3, onebit.ncols*3, RGB)
new_paths = paths.transform(t)
for path in new_paths:
new_image.draw_path_hollow(
path, RGBPixel(255, 128, 128))
return [onebit, new_image]
