Hide keyboard shortcuts

Hot-keys on this page

r m x p   toggle line displays

j k   next/prev highlighted chunk

0   (zero) top of page

1   (one) first highlighted chunk

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

# 

# LSST Data Management System 

# 

# Copyright 2008-2016 AURA/LSST. 

# 

# This product includes software developed by the 

# LSST Project (http://www.lsst.org/). 

# 

# This program is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the LSST License Statement and 

# the GNU General Public License along with this program. If not, 

# see <https://www.lsstcorp.org/LegalNotices/>. 

# 

 

import unittest 

import numpy as np 

 

import lsst.afw.table as afwTable 

from lsst.meas.algorithms import sourceSelector 

import lsst.meas.base.tests 

import lsst.utils.tests 

 

badFlags = [ 

"slot_Centroid_flag", 

"slot_ApFlux_flag", 

"base_PixelFlags_flag_edge", 

"base_PixelFlags_flag_interpolatedCenter", 

"base_PixelFlags_flag_saturated", 

] 

 

 

def add_good_source(src, num=0): 

"""Insert a likely-good source into the catalog.""" 

""" 

num is added to various values to distinguish them in catalogs with multiple objects. 

""" 

src.addNew() 

src['coord_ra'][-1] = 1. + num 

src['coord_dec'][-1] = 2. + num 

src['slot_Centroid_x'][-1] = 10. + num 

src['slot_Centroid_y'][-1] = 20. + num 

src['slot_ApFlux_instFlux'][-1] = 100. + num 

src['slot_ApFlux_instFluxErr'][-1] = 1. 

 

 

class TestMatcherSourceSelector(lsst.utils.tests.TestCase): 

 

def setUp(self): 

schema = lsst.meas.base.tests.TestDataset.makeMinimalSchema() 

schema.addField("slot_ApFlux_instFlux", type=float) 

schema.addField("slot_ApFlux_instFluxErr", type=float) 

for flag in badFlags: 

schema.addField(flag, type="Flag") 

 

self.src = afwTable.SourceCatalog(schema) 

self.sourceSelector = sourceSelector.sourceSelectorRegistry['matcher']() 

 

def tearDown(self): 

del self.src 

del self.sourceSelector 

 

def testSelectSources_good(self): 

for i in range(5): 

add_good_source(self.src, i) 

result = self.sourceSelector.run(self.src) 

# TODO: assertEqual doesn't work correctly on source catalogs. 

# self.assertEqual(result.sourceCat, self.src) 

for x in self.src['id']: 

self.assertIn(x, result.sourceCat['id']) 

 

def testSelectSources_bad_centroid(self): 

add_good_source(self.src, 1) 

self.src[0].set('slot_Centroid_x', np.nan) 

result = self.sourceSelector.run(self.src) 

self.assertNotIn(self.src['id'][0], result.sourceCat['id']) 

 

def testSelectSources_is_parent(self): 

add_good_source(self.src, 1) 

self.src[0].set('parent', 1) 

result = self.sourceSelector.run(self.src) 

self.assertNotIn(self.src['id'][0], result.sourceCat['id']) 

 

def testSelectSources_highSN_cut(self): 

add_good_source(self.src, 1) 

add_good_source(self.src, 2) 

self.src['slot_ApFlux_instFlux'][0] = 20. 

self.src['slot_ApFlux_instFlux'][1] = 1000. 

 

self.sourceSelector.config.minSnr = 100 

result = self.sourceSelector.run(self.src) 

self.assertNotIn(self.src[0]['id'], result.sourceCat['id']) 

self.assertIn(self.src[1]['id'], result.sourceCat['id']) 

 

def testSelectSources_no_SN_cut(self): 

self.sourceSelector.config.minSnr = 0 

add_good_source(self.src, 1) 

self.src['slot_ApFlux_instFlux'][0] = 0 

result = self.sourceSelector.run(self.src) 

self.assertIn(self.src[0]['id'], result.sourceCat['id']) 

 

def testSelectSources_is_edge(self): 

add_good_source(self.src, 1) 

self.src[0].set('base_PixelFlags_flag_edge', 1) 

result = self.sourceSelector.run(self.src) 

self.assertNotIn(self.src['id'][0], result.sourceCat['id']) 

 

def testSelectSources_is_interpolated(self): 

add_good_source(self.src, 1) 

self.src[0].set('base_PixelFlags_flag_interpolatedCenter', 1) 

result = self.sourceSelector.run(self.src) 

self.assertNotIn(self.src['id'][0], result.sourceCat['id']) 

 

def testSelectSources_is_saturated(self): 

add_good_source(self.src, 1) 

self.src[0].set('base_PixelFlags_flag_saturated', 1) 

result = self.sourceSelector.run(self.src) 

self.assertNotIn(self.src['id'][0], result.sourceCat['id']) 

 

 

class TestMemory(lsst.utils.tests.MemoryTestCase): 

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

137 ↛ 138line 137 didn't jump to line 138, because the condition on line 137 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()