| 1 | #!/usr/bin/env python
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| 2 |
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| 3 | ############################################################################
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| 4 | #
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| 5 | # MODULE: r_forestfrag_trivial
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| 6 | # AUTHOR: Vaclav Petras
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| 7 | # PURPOSE: Test using example from the Riitters et al. 2000 paper
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| 8 | # COPYRIGHT: (C) 2016 by Vaclav Petras and the GRASS Development Team
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| 9 | #
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| 10 | # This program is free software under the GNU General Public
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| 11 | # License (>=v2). Read the file COPYING that comes with GRASS
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| 12 | # for details.
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| 13 | #
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| 14 | #############################################################################
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| 15 |
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| 16 | # This test led to discovery of #3067 (r68717) which was an r.mapcalc
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| 17 | # row indexing bug.
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| 18 |
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| 19 | from grass.gunittest.case import TestCase
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| 20 | from grass.gunittest.main import test
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| 21 |
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| 22 |
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| 23 | FOREST_RIITTERS = """\
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| 24 | north: 10
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| 25 | south: 8
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| 26 | east: 20
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| 27 | west: 18
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| 28 | rows: 3
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| 29 | cols: 3
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| 30 | 1 0 1
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| 31 | 1 1 0
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| 32 | 1 1 0
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| 33 | """
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| 34 |
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| 35 | FRAG_RIITTERS = """\
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| 36 | north: 10
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| 37 | south: 8
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| 38 | east: 20
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| 39 | west: 18
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| 40 | rows: 3
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| 41 | cols: 3
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| 42 | null: N
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| 43 | N N N
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| 44 | N 4 N
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| 45 | N N N
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| 46 | """
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| 47 |
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| 48 | PF_RIITTERS = """\
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| 49 | north: 10
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| 50 | south: 8
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| 51 | east: 20
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| 52 | west: 18
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| 53 | rows: 3
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| 54 | cols: 3
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| 55 | null: N
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| 56 | N N N
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| 57 | N 0.67 N
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| 58 | N N N
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| 59 | """
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| 60 |
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| 61 | PFF_RIITTERS = """\
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| 62 | north: 10
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| 63 | south: 8
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| 64 | east: 20
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| 65 | west: 18
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| 66 | rows: 3
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| 67 | cols: 3
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| 68 | null: N
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| 69 | N N N
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| 70 | N 0.45 N
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| 71 | N N N
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| 72 | """
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| 73 |
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| 74 |
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| 75 | class TestForestFragTrivial(TestCase):
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| 76 | # TODO: replace by unified handing of maps
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| 77 | to_remove = []
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| 78 | forest = 'rff_test_forest_trivial'
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| 79 | forest_frag = 'rff_test_forest_frag_trivial'
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| 80 | forest_frag_ref = 'rff_test_forest_frag_trivial_ref'
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| 81 |
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| 82 | def setUp(self):
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| 83 | self.use_temp_region()
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| 84 |
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| 85 | def tearDown(self):
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| 86 | self.del_temp_region()
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| 87 | if 0 and self.to_remove:
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| 88 | self.runModule('g.remove', flags='f', type='raster',
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| 89 | name=','.join(self.to_remove), verbose=True)
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| 90 |
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| 91 | def forest_frag_general(self, forest, window, reference):
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| 92 | self.runModule('r.in.ascii', input='-', stdin_=forest,
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| 93 | output=self.forest)
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| 94 | self.to_remove.append(self.forest)
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| 95 | self.runModule('g.region', raster=self.forest)
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| 96 | self.assertRasterMinMax(self.forest,
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| 97 | refmin=0, refmax=1)
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| 98 | self.runModule('r.in.ascii', input='-', stdin_=reference,
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| 99 | output=self.forest_frag_ref)
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| 100 | self.to_remove.append(self.forest_frag_ref)
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| 101 | pf_ref = self.forest_frag_ref + '_pf'
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| 102 | self.runModule('r.in.ascii', input='-', stdin_=PF_RIITTERS,
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| 103 | output=pf_ref)
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| 104 | self.to_remove.append(pf_ref)
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| 105 | pff_ref = self.forest_frag_ref + '_pff'
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| 106 | self.runModule('r.in.ascii', input='-', stdin_=PFF_RIITTERS,
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| 107 | output=pff_ref)
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| 108 | self.to_remove.append(pff_ref)
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| 109 | # just check if the reference is all right
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| 110 | theoretical_min = 0
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| 111 | theoretical_max = 6
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| 112 | self.assertRasterMinMax(self.forest_frag_ref,
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| 113 | refmin=theoretical_min,
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| 114 | refmax=theoretical_max)
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| 115 | ref_univar = dict(null_cells=8)
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| 116 | self.assertRasterFitsUnivar(raster=self.forest_frag_ref,
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| 117 | reference=ref_univar, precision=0)
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| 118 |
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| 119 | # actually run the module
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| 120 | pf = self.forest_frag + '_pf'
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| 121 | pff = self.forest_frag + '_pff'
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| 122 | self.assertModule('r.forestfrag', input=self.forest,
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| 123 | output=self.forest_frag, window=window,
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| 124 | pf=pf, pff=pff)
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| 125 | self.assertRasterExists(self.forest_frag)
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| 126 | self.to_remove.append(self.forest_frag)
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| 127 | self.assertRasterExists(pf)
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| 128 | self.to_remove.append(pf)
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| 129 | self.assertRasterExists(pff)
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| 130 | self.to_remove.append(pff)
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| 131 |
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| 132 | # check the basic properties
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| 133 | self.assertRasterMinMax(self.forest_frag,
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| 134 | refmin=theoretical_min,
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| 135 | refmax=theoretical_max)
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| 136 | ref_univar = dict(null_cells=0)
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| 137 | self.assertRasterFitsUnivar(raster=self.forest_frag,
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| 138 | reference=ref_univar, precision=0)
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| 139 |
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| 140 | self.runModule('g.region', zoom=pff_ref)
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| 141 |
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| 142 | # check cell by cell
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| 143 |
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| 144 | self.assertRastersNoDifference(actual=pf,
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| 145 | reference=pf_ref,
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| 146 | precision=0.01)
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| 147 |
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| 148 | self.assertRastersNoDifference(actual=pff,
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| 149 | reference=pff_ref,
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| 150 | precision=0.01)
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| 151 |
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| 152 | self.assertRastersNoDifference(actual=self.forest_frag,
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| 153 | reference=self.forest_frag_ref,
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| 154 | precision=0) # it's CELL type
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| 155 |
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| 156 |
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| 157 | def test_riitters(self):
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| 158 | self.forest_frag_general(FOREST_RIITTERS, 3, FRAG_RIITTERS)
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| 159 |
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| 160 |
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| 161 | if __name__ == '__main__':
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| 162 | test()
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