def test_transform_coord_map_to_image_offset(self):
coord = (-1850865 + 2, 2956785 - 2)
point = geom.transform_coord(coord,
self.xform_matrix,
src="map",
dst="image")
self.assertEqual(point, (0, 0))
def test_transform_coord_map_to_image_lower_right(self):
coord = (-1850865 + (30 * 255), 2956785 + ((-30) * 255))
point = geom.transform_coord(coord,
self.xform_matrix,
src="map",
dst="image")
self.assertEqual(point, (255, 255))
def __getitem__(self, proj_point):
"""Get value for given projection point"""
# XXX why isn't this next line using the self._point_transformer matrix
# that's areadly been created?
tm = geom.get_transform_matrix(self, self._spec) # blech
(x, y) = proj_point
(tx, ty) = geom.transform_coord(proj_point, tm, src="map", dst="image")
return self._data[tx, ty]
def test_transform_coord_map_to_image_offset(self):
coord = (-1850865+2, 2956785-2)
point = geom.transform_coord(
coord, self.xform_matrix, src="map", dst="image")
self.assertEqual(point, (0,0))
def test_transform_coord_map_to_image_lower_right(self):
coord = (-1850865+(30*255), 2956785+((-30)*255))
point = geom.transform_coord(
coord, self.xform_matrix, src="map", dst="image")
self.assertEqual(point, (255,255))