def make_buffers(self, field_names, capacity, do_conversion=True, do_scaling=True):
data = {}
buffers = libe57.VectorSourceDestBuffer()
for field in field_names:
d, b = self.make_buffer(field, capacity, do_conversion=do_conversion, do_scaling=do_scaling)
data[field] = d
buffers.append(b)
return data, buffers
def test_read_points_x(image_and_points):
imf, points = image_and_points
bufs = libe57.VectorSourceDestBuffer()
capacity = 10000
X = np.zeros(capacity, "f")
bufs.append(
libe57.SourceDestBuffer(imf, "cartesianX", X, capacity, True, True))
data_reader = points.reader(bufs)
size = data_reader.read()
assert size == capacity
assert not np.all(np.zeros(capacity, "f") == X)
def read_scan_raw(self, index) -> Dict:
header = self.get_header(index)
data = {}
buffers = libe57.VectorSourceDestBuffer()
for field in header.point_fields:
np_array, buffer = self.make_buffer(field, header.point_count)
data[field] = np_array
buffers.append(buffer)
header.points.reader(buffers).read()
return data
def test_source_dest_buffers(e57_path):
f = libe57.ImageFile(e57_path, "r")
capacity = 1000
types = list("bBhHlLq?fd")
sizes = [1, 1, 2, 2, 4, 4, 8, 1, 4, 8]
buffers = libe57.VectorSourceDestBuffer()
for t in types:
data = np.zeros(capacity, t)
sdb = libe57.SourceDestBuffer(f, "something", data, capacity, True,
True)
buffers.append(sdb)
for t, sdb, size, in zip(types, buffers, sizes):
assert sdb.pathName() == "something"
assert sdb.capacity() == capacity
assert sdb.stride() == size
assert sdb.doScaling()
assert sdb.doConversion()