mvt bounds

scale.py

from tilequeue.transform import apply_to_all_coords
from tilequeue.transform import rescale_point
import shapely.wkt


def coerce_int((x, y)):
    return int(x), int(y)


def make_fn(fn):
    def _fn((x, y)):
        x, y = fn((x, y))
        return coerce_int((x, y))
    return _fn


scale = 4096
bounds = (0., 0., 4096., 4096.)

geometry_wkt = 'POLYGON((0 0, 4096 0, 4096 4096, 0 4096, 0 0))'
shape = shapely.wkt.loads(geometry_wkt)

rescale_fn = rescale_point(bounds, scale)
fn = make_fn(rescale_fn)
transform_fn = apply_to_all_coords(fn)

transformed_shape = transform_fn(shape)

print transformed_shape.wkt