def test_0d(self):
"""Check that initialization works for 1d-discretization."""
grid = GridWorld([[0, 1]], 3)
test = np.array([[0.1, 0.4, 0.9]]).T
res = np.array([0, 1, 2])
assert_allclose(grid.state_to_index(test), res)
res = np.array([0, 0, 1])
assert_allclose(grid.state_to_rectangle(test), res)
assert_allclose(grid.rectangle_to_state(res), res[:, None] * 0.5)
def test_index_state_conversion(self):
"""Test all index conversions."""
limits = [[-1.1, 1.5], [2.2, 2.4]]
num_points = [7, 8]
grid = GridWorld(limits, num_points)
# Forward and backwards convert all indeces
indeces = np.arange(grid.nindex)
states = grid.index_to_state(indeces)
indeces2 = grid.state_to_index(states)
assert_equal(indeces, indeces2)
# test 1D input
grid.state_to_index([0, 2.3])
grid.index_to_state(1)
# Test rectangles
rectangles = np.arange(grid.nrectangles)
states = grid.rectangle_to_state(rectangles)
rectangles2 = grid.state_to_rectangle(states + grid.unit_maxes / 2)
assert_equal(rectangles, rectangles2)
rectangle = grid.state_to_rectangle(100 * np.ones((1, 2)))
assert_equal(rectangle, grid.nrectangles - 1)
rectangle = grid.state_to_rectangle(-100 * np.ones((1, 2)))
assert_equal(rectangle, 0)
# Test rectangle corners
corners = grid.rectangle_corner_index(rectangles)
corner_states = grid.rectangle_to_state(rectangles)
corners2 = grid.state_to_index(corner_states)
assert_equal(corners, corners2)
# Test point outside grid
test_point = np.array([[-1.2, 2.]])
index = grid.state_to_index(test_point)
assert_equal(index, 0)
