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_spatialCell.py
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1# This file is part of afw.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (https://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <https://www.gnu.org/licenses/>.
21
22__all__ = [] # import this module only for its side effects
23
24from lsst.pex.exceptions import NotFoundError
25from lsst.utils import continueClass
26from ._math import (SpatialCellCandidate, SpatialCellCandidateIterator, SpatialCell, SpatialCellSet,
27 SpatialCellImageCandidate)
28
29
30@continueClass
32 def __iter__(self):
33 while True:
34 try:
35 yield self.__deref__()
36 except NotFoundError:
37 return
38 self.__incr__()
39
40
41@continueClass
42class SpatialCellCandidate: # noqa: F811
43 def __repr__(self):
44 return (f"center=({self.getXCenter()},{self.getYCenter()}), "
45 f"status={self.getStatus().name}, rating={self.getCandidateRating()}")
46
47
48@continueClass
49class SpatialCellImageCandidate: # noqa: F811
50 def __repr__(self):
51 # NOTE: super doesn't work outside of class members, but this is only
52 # single inheritance.
53 string = (f"{SpatialCellCandidate.__repr__(self)}, size=({self.getWidth()}, {self.getHeight()}), "
54 f"chi2={self.getChi2()}")
55 return string
56
57
58@continueClass
59class SpatialCell: # noqa: F811
60 def __iter__(self):
61 return self.begin().__iter__()
62
63 def __getitem__(self, idx):
64 idx = int(idx)
65 num_cells = len(self)
66 if idx < -num_cells or idx >= num_cells:
67 raise IndexError("idx={} < -{} or >= {})".format(idx,
68 num_cells, num_cells))
69 if idx < 0:
70 idx += num_cells
71 for i, cell in enumerate(self):
72 if i >= idx:
73 return cell
74
75 def __repr__(self):
76 candidates = "\n".join(f"({str(x)})" for x in self)
77 # If there are no candidates, don't make a multi-line list.
78 candidatesStr = f"\n{candidates}" if self.size() != 0 else ""
79 return (f"{self.getLabel()}: bbox={self.getBBox()}, ignoreBad={self.getIgnoreBad()}, "
80 f"candidates=[{candidatesStr}]")
81
82
83@continueClass
84class SpatialCellSet: # noqa: F811
85 def __repr__(self):
86 cellsStr = "\n".join(str(cell) for cell in self.getCellList())
87 return (f"bbox={self.getBBox()}, {len(self.getCellList())} cells\n{cellsStr}")