def __init__(self, body_id):
self._id = body_id
self._name = spice.bodc2n(body_id)
self._frame = None
if self._name is None:
msg = 'Body() {} is not a valid ID.'
raise ValueError(msg.format(body_id))
Body._CACHE[body_id] = self
def load(path='.', recursive=True, followlinks=False):
'''Load a kernel file or a directory containing kernel files.
:type path: ``str``
:arg path: Relative or absolute path to the file/(root)directory to load.
:type recursive: ``bool``
:arg recursive: If *path* is a directory and *recursive* is ``True``,
this will also search in child directories and not only the root.
:type followlinks: ``bool``
:arg followlinks: If *path* is a directory and *recursive* and
*followlinks* are both ``True``, symlinked directories further up the
directory tree will also be traversed.
.. WARNING:: Setting *followlinks* to ``True`` may lead to infinite
recursion.
:return: (``set(str)``) -- The names of all loaded Ephimeris Objects.
:raise: Nothing.
Meta-kernels are not supported, because they would be parsed internally by
the c-framework, therefore ignoring the feautures for time window
extraction.
At the moment only Ephimeris Objects defined in binary kernels are parsed,
because of limitations in the c-framework.
'''
path = os.path.realpath(path)
if os.path.isfile(path):
dirname, basename = os.path.split(path)
walker = [[dirname, [], [basename]]]
elif recursive:
walker = os.walk(path, followlinks=followlinks)
else:
walker = [next(os.walk(path, followlinks=followlinks))]
queue = []
for curdir, dirs, fnames in walker:
for name in fnames:
with ignored(ValueError):
extension = _filter_extensions(name)
filepath = os.path.join(curdir, name)
# Load kernels with objects later
if extension in ('sp', 'c', 'pc', 'f'):
queue.append((filepath, extension))
else:
queue.insert(0, (filepath, extension))
loaded_objects = set()
for filepath, extension in queue:
objects = _load_any(filepath, extension)
loaded_objects.update(spice.bodc2n(code) for code in objects)
with ignored(KeyError):
loaded_objects.remove(None)
LOADED_OBJECTS.update(loaded_objects)
return loaded_objects
