| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | """ |
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| 4 | Note, fitting/blocking is also tested in |
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| 5 | test_quantity.test_set_values_from_UTM_pts. |
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| 6 | """ |
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| 7 | |
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| 8 | #TEST |
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| 9 | import sys |
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| 10 | import unittest |
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| 11 | from math import sqrt |
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| 12 | import tempfile |
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| 13 | import os |
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| 14 | from Numeric import zeros, take, compress, Float, Int, dot, concatenate, \ |
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| 15 | ArrayType, allclose, array |
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| 16 | |
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| 17 | from fit import * |
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| 18 | from anuga.abstract_2d_finite_volumes.neighbour_mesh import Mesh |
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| 19 | from anuga.utilities.sparse import Sparse, Sparse_CSR |
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| 20 | from anuga.coordinate_transforms.geo_reference import Geo_reference |
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| 21 | from anuga.utilities.numerical_tools import ensure_numeric |
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| 22 | from anuga.geospatial_data.geospatial_data import Geospatial_data |
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| 23 | from anuga.shallow_water import Domain |
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| 24 | |
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| 25 | def distance(x, y): |
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| 26 | return sqrt( sum( (array(x)-array(y))**2 )) |
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| 27 | |
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| 28 | def linear_function(point): |
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| 29 | point = array(point) |
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| 30 | return point[:,0]+point[:,1] |
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| 31 | |
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| 32 | |
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| 33 | class Test_Fit(unittest.TestCase): |
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| 34 | |
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| 35 | def setUp(self): |
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| 36 | pass |
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| 37 | |
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| 38 | def tearDown(self): |
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| 39 | pass |
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| 40 | |
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| 41 | |
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| 42 | def test_smooth_attributes_to_mesh(self): |
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| 43 | a = [0.0, 0.0] |
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| 44 | b = [0.0, 5.0] |
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| 45 | c = [5.0, 0.0] |
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| 46 | points = [a, b, c] |
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| 47 | triangles = [ [1,0,2] ] #bac |
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| 48 | |
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| 49 | d1 = [1.0, 1.0] |
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| 50 | d2 = [1.0, 3.0] |
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| 51 | d3 = [3.0,1.0] |
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| 52 | z1 = 2 |
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| 53 | z2 = 4 |
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| 54 | z3 = 4 |
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| 55 | data_coords = [d1, d2, d3] |
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| 56 | |
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| 57 | z = [z1, z2, z3] |
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| 58 | fit = Fit(points, triangles, alpha=0) |
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| 59 | #print "interp.get_A()", interp.get_A() |
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| 60 | fit._build_matrix_AtA_Atz(ensure_numeric(data_coords), |
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| 61 | ensure_numeric(z)) |
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| 62 | #print "Atz - from fit", fit.Atz |
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| 63 | #print "AtA - from fit", fit.AtA.todense() |
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| 64 | #print "z",z |
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| 65 | |
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| 66 | assert allclose(fit.Atz, [2.8, 3.6, 3.6], atol=1e-7) |
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| 67 | |
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| 68 | f = fit.fit() |
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| 69 | |
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| 70 | answer = [0, 5., 5.] |
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| 71 | |
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| 72 | #print "f\n",f |
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| 73 | #print "answer\n",answer |
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| 74 | |
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| 75 | assert allclose(f, answer, atol=1e-7) |
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| 76 | |
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| 77 | def test_smooth_att_to_meshII(self): |
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| 78 | |
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| 79 | a = [0.0, 0.0] |
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| 80 | b = [0.0, 5.0] |
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| 81 | c = [5.0, 0.0] |
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| 82 | points = [a, b, c] |
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| 83 | triangles = [ [1,0,2] ] #bac |
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| 84 | |
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| 85 | d1 = [1.0, 1.0] |
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| 86 | d2 = [1.0, 2.0] |
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| 87 | d3 = [3.0,1.0] |
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| 88 | data_coords = [d1, d2, d3] |
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| 89 | z = linear_function(data_coords) |
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| 90 | #print "z",z |
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| 91 | |
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| 92 | interp = Fit(points, triangles, alpha=0.0) |
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| 93 | f = interp.fit(data_coords, z) |
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| 94 | answer = linear_function(points) |
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| 95 | #print "f\n",f |
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| 96 | #print "answer\n",answer |
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| 97 | |
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| 98 | assert allclose(f, answer) |
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| 99 | |
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| 100 | def test_smooth_attributes_to_meshIII(self): |
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| 101 | |
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| 102 | a = [-1.0, 0.0] |
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| 103 | b = [3.0, 4.0] |
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| 104 | c = [4.0,1.0] |
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| 105 | d = [-3.0, 2.0] #3 |
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| 106 | e = [-1.0,-2.0] |
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| 107 | f = [1.0, -2.0] #5 |
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| 108 | |
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| 109 | vertices = [a, b, c, d,e,f] |
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| 110 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
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| 111 | |
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| 112 | point_coords = [[-2.0, 2.0], |
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| 113 | [-1.0, 1.0], |
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| 114 | [0.0,2.0], |
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| 115 | [1.0, 1.0], |
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| 116 | [2.0, 1.0], |
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| 117 | [0.0,0.0], |
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| 118 | [1.0, 0.0], |
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| 119 | [0.0, -1.0], |
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| 120 | [-0.2,-0.5], |
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| 121 | [-0.9, -1.5], |
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| 122 | [0.5, -1.9], |
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| 123 | [3.0,1.0]] |
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| 124 | |
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| 125 | z = linear_function(point_coords) |
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| 126 | interp = Fit(vertices, triangles, |
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| 127 | alpha=0.0) |
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| 128 | |
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| 129 | #print 'z',z |
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| 130 | f = interp.fit(point_coords,z) |
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| 131 | answer = linear_function(vertices) |
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| 132 | #print "f\n",f |
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| 133 | #print "answer\n",answer |
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| 134 | assert allclose(f, answer) |
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| 135 | |
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| 136 | |
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| 137 | def test_smooth_attributes_to_meshIV(self): |
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| 138 | # Testing 2 attributes smoothed to the mesh |
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| 139 | |
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| 140 | |
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| 141 | a = [0.0, 0.0] |
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| 142 | b = [0.0, 5.0] |
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| 143 | c = [5.0, 0.0] |
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| 144 | points = [a, b, c] |
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| 145 | triangles = [ [1,0,2] ] #bac |
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| 146 | |
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| 147 | d1 = [1.0, 1.0] |
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| 148 | d2 = [1.0, 3.0] |
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| 149 | d3 = [3.0, 1.0] |
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| 150 | z1 = [2, 4] |
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| 151 | z2 = [4, 8] |
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| 152 | z3 = [4, 8] |
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| 153 | data_coords = [d1, d2, d3] |
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| 154 | |
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| 155 | z = [z1, z2, z3] |
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| 156 | fit = Fit(points, triangles, alpha=0) |
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| 157 | |
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| 158 | f = fit.fit(data_coords,z) |
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| 159 | answer = [[0,0], [5., 10.], [5., 10.]] |
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| 160 | assert allclose(f, answer) |
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| 161 | |
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| 162 | def test_smooth_attributes_to_mesh_build_fit_subset(self): |
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| 163 | |
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| 164 | a = [-1.0, 0.0] |
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| 165 | b = [3.0, 4.0] |
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| 166 | c = [4.0,1.0] |
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| 167 | d = [-3.0, 2.0] #3 |
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| 168 | e = [-1.0,-2.0] |
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| 169 | f = [1.0, -2.0] #5 |
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| 170 | |
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| 171 | vertices = [a, b, c, d,e,f] |
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| 172 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
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| 173 | |
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| 174 | interp = Fit(vertices, triangles, |
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| 175 | alpha=0.0) |
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| 176 | |
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| 177 | point_coords = [[-2.0, 2.0], |
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| 178 | [-1.0, 1.0], |
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| 179 | [0.0,2.0], |
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| 180 | [1.0, 1.0], |
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| 181 | ] |
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| 182 | |
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| 183 | z = linear_function(point_coords) |
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| 184 | |
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| 185 | f = interp.build_fit_subset(point_coords,z) |
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| 186 | |
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| 187 | point_coords = [ |
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| 188 | [2.0, 1.0], |
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| 189 | [0.0,0.0], |
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| 190 | [1.0, 0.0], |
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| 191 | [0.0, -1.0], |
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| 192 | [-0.2,-0.5], |
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| 193 | [-0.9, -1.5], |
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| 194 | [0.5, -1.9], |
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| 195 | [3.0,1.0]] |
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| 196 | |
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| 197 | z = linear_function(point_coords) |
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| 198 | |
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| 199 | f = interp.build_fit_subset(point_coords,z) |
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| 200 | |
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| 201 | #print 'z',z |
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| 202 | f = interp.fit() |
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| 203 | answer = linear_function(vertices) |
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| 204 | #print "f\n",f |
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| 205 | #print "answer\n",answer |
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| 206 | assert allclose(f, answer) |
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| 207 | |
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| 208 | # test fit 2 mesh as well. |
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| 209 | def test_fit_file_blocking(self): |
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| 210 | |
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| 211 | a = [-1.0, 0.0] |
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| 212 | b = [3.0, 4.0] |
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| 213 | c = [4.0,1.0] |
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| 214 | d = [-3.0, 2.0] #3 |
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| 215 | e = [-1.0,-2.0] |
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| 216 | f = [1.0, -2.0] #5 |
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| 217 | |
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| 218 | vertices = [a, b, c, d,e,f] |
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| 219 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
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| 220 | |
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| 221 | interp = Fit(vertices, triangles, |
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| 222 | alpha=0.0) |
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| 223 | |
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| 224 | |
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| 225 | fileName = tempfile.mktemp(".ddd") |
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| 226 | file = open(fileName,"w") |
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| 227 | file.write(" x,y, elevation \n\ |
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| 228 | -2.0, 2.0, 0.\n\ |
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| 229 | -1.0, 1.0, 0.\n\ |
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| 230 | 0.0, 2.0 , 2.\n\ |
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| 231 | 1.0, 1.0 , 2.\n\ |
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| 232 | 2.0, 1.0 ,3. \n\ |
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| 233 | 0.0, 0.0 , 0.\n\ |
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| 234 | 1.0, 0.0 , 1.\n\ |
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| 235 | 0.0, -1.0, -1.\n\ |
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| 236 | -0.2, -0.5, -0.7\n\ |
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| 237 | -0.9, -1.5, -2.4\n\ |
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| 238 | 0.5, -1.9, -1.4\n\ |
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| 239 | 3.0, 1.0 , 4.\n") |
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| 240 | file.close() |
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| 241 | |
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| 242 | f = interp.fit(fileName, max_read_lines=2) |
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| 243 | answer = linear_function(vertices) |
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| 244 | #print "f\n",f |
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| 245 | #print "answer\n",answer |
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| 246 | assert allclose(f, answer) |
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| 247 | os.remove(fileName) |
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| 248 | |
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| 249 | def test_fit_to_mesh_UTM_file(self): |
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| 250 | #Get (enough) datapoints |
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| 251 | data_points = [[-21.5, 114.5],[-21.4, 114.6],[-21.45,114.65], |
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| 252 | [-21.35, 114.65],[-21.45, 114.55],[-21.45,114.6]] |
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| 253 | |
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| 254 | data_geo_spatial = Geospatial_data(data_points, |
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| 255 | points_are_lats_longs=True) |
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| 256 | points_UTM = data_geo_spatial.get_data_points(absolute=True) |
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| 257 | attributes = linear_function(points_UTM) |
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| 258 | att = 'elevation' |
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| 259 | |
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| 260 | #Create .txt file |
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| 261 | txt_file = tempfile.mktemp(".txt") |
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| 262 | file = open(txt_file,"w") |
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| 263 | file.write(" x,y," + att + " \n") |
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| 264 | for data_point, attribute in map(None, points_UTM, attributes): |
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| 265 | row = str(data_point[0]) + ',' + str(data_point[1]) \ |
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| 266 | + ',' + str(attribute) |
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| 267 | #print "row", row |
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| 268 | file.write(row + "\n") |
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| 269 | file.close() |
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| 270 | |
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| 271 | # setting up the mesh |
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| 272 | a = [240000, 7620000] |
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| 273 | b = [240000, 7680000] |
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| 274 | c = [300000, 7620000] |
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| 275 | points = [a, b, c] |
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| 276 | elements = [[0,2,1]] |
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| 277 | f = fit_to_mesh(txt_file, points, elements, |
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| 278 | alpha=0.0, max_read_lines=2) |
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| 279 | answer = linear_function(points) |
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| 280 | #print "f",f |
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| 281 | #print "answer",answer |
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| 282 | assert allclose(f, answer) |
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| 283 | |
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| 284 | # Delete file! |
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| 285 | os.remove(txt_file) |
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| 286 | |
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| 287 | def cache_test_fit_to_mesh_pts(self): |
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| 288 | a = [-1.0, 0.0] |
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| 289 | b = [3.0, 4.0] |
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| 290 | c = [4.0,1.0] |
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| 291 | d = [-3.0, 2.0] #3 |
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| 292 | e = [-1.0,-2.0] |
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| 293 | f = [1.0, -2.0] #5 |
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| 294 | |
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| 295 | vertices = [a, b, c, d,e,f] |
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| 296 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
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| 297 | |
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| 298 | |
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| 299 | fileName = tempfile.mktemp(".txt") |
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| 300 | file = open(fileName,"w") |
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| 301 | file.write(" x, y, elevation \n\ |
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| 302 | -2.0, 2.0, 0.\n\ |
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| 303 | -1.0, 1.0, 0.\n\ |
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| 304 | 0.0, 2.0 , 2.\n\ |
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| 305 | 1.0, 1.0 , 2.\n\ |
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| 306 | 2.0, 1.0 ,3. \n\ |
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| 307 | 0.0, 0.0 , 0.\n\ |
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| 308 | 1.0, 0.0 , 1.\n\ |
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| 309 | 0.0, -1.0, -1.\n\ |
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| 310 | -0.2, -0.5, -0.7\n\ |
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| 311 | -0.9, -1.5, -2.4\n\ |
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| 312 | 0.5, -1.9, -1.4\n\ |
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| 313 | 3.0, 1.0 , 4.\n") |
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| 314 | file.close() |
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| 315 | geo = Geospatial_data(fileName) |
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| 316 | fileName_pts = tempfile.mktemp(".pts") |
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| 317 | points = geo.get_data_points(absolute=True) |
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| 318 | atts = geo.get_attributes() |
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| 319 | f = fit_to_mesh(points,atts, vertices, triangles, |
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| 320 | alpha=0.0, max_read_lines=2, |
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| 321 | use_cache=True, verbose=True) |
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| 322 | answer = linear_function(vertices) |
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| 323 | #print "f\n",f |
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| 324 | #print "answer\n",answer |
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| 325 | assert allclose(f, answer) |
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| 326 | os.remove(fileName) |
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| 327 | |
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| 328 | def test_fit_to_mesh_pts(self): |
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| 329 | a = [-1.0, 0.0] |
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| 330 | b = [3.0, 4.0] |
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| 331 | c = [4.0,1.0] |
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| 332 | d = [-3.0, 2.0] #3 |
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| 333 | e = [-1.0,-2.0] |
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| 334 | f = [1.0, -2.0] #5 |
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| 335 | |
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| 336 | vertices = [a, b, c, d,e,f] |
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| 337 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
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| 338 | |
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| 339 | |
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| 340 | fileName = tempfile.mktemp(".txt") |
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| 341 | file = open(fileName,"w") |
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| 342 | file.write(" x, y, elevation \n\ |
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| 343 | -2.0, 2.0, 0.\n\ |
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| 344 | -1.0, 1.0, 0.\n\ |
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| 345 | 0.0, 2.0 , 2.\n\ |
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| 346 | 1.0, 1.0 , 2.\n\ |
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| 347 | 2.0, 1.0 ,3. \n\ |
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| 348 | 0.0, 0.0 , 0.\n\ |
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| 349 | 1.0, 0.0 , 1.\n\ |
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| 350 | 0.0, -1.0, -1.\n\ |
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| 351 | -0.2, -0.5, -0.7\n\ |
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| 352 | -0.9, -1.5, -2.4\n\ |
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| 353 | 0.5, -1.9, -1.4\n\ |
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| 354 | 3.0, 1.0 , 4.\n") |
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| 355 | file.close() |
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| 356 | geo = Geospatial_data(fileName) |
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| 357 | fileName_pts = tempfile.mktemp(".pts") |
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| 358 | geo.export_points_file(fileName_pts) |
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| 359 | f = fit_to_mesh(fileName_pts, vertices, triangles, |
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| 360 | alpha=0.0, max_read_lines=2) |
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| 361 | answer = linear_function(vertices) |
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| 362 | #print "f\n",f |
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| 363 | #print "answer\n",answer |
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| 364 | assert allclose(f, answer) |
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| 365 | os.remove(fileName) |
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| 366 | os.remove(fileName_pts) |
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| 367 | |
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| 368 | def test_fit_to_mesh_pts_passing_mesh_in(self): |
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| 369 | a = [-1.0, 0.0] |
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| 370 | b = [3.0, 4.0] |
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| 371 | c = [4.0,1.0] |
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| 372 | d = [-3.0, 2.0] #3 |
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| 373 | e = [-1.0,-2.0] |
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| 374 | f = [1.0, -2.0] #5 |
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| 375 | |
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| 376 | vertices = [a, b, c, d,e,f] |
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| 377 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
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| 378 | |
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| 379 | |
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| 380 | fileName = tempfile.mktemp(".txt") |
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| 381 | file = open(fileName,"w") |
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| 382 | file.write(" x, y, elevation \n\ |
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| 383 | -2.0, 2.0, 0.\n\ |
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| 384 | -1.0, 1.0, 0.\n\ |
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| 385 | 0.0, 2.0 , 2.\n\ |
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| 386 | 1.0, 1.0 , 2.\n\ |
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| 387 | 2.0, 1.0 ,3. \n\ |
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| 388 | 0.0, 0.0 , 0.\n\ |
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| 389 | 1.0, 0.0 , 1.\n\ |
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| 390 | 0.0, -1.0, -1.\n\ |
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| 391 | -0.2, -0.5, -0.7\n\ |
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| 392 | -0.9, -1.5, -2.4\n\ |
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| 393 | 0.5, -1.9, -1.4\n\ |
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| 394 | 3.0, 1.0 , 4.\n") |
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| 395 | file.close() |
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| 396 | geo = Geospatial_data(fileName) |
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| 397 | fileName_pts = tempfile.mktemp(".pts") |
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| 398 | geo.export_points_file(fileName_pts) |
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| 399 | f = fit_to_mesh(fileName_pts, vertices, triangles, |
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| 400 | alpha=0.0, max_read_lines=2) |
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| 401 | answer = linear_function(vertices) |
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| 402 | #print "f\n",f |
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| 403 | #print "answer\n",answer |
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| 404 | assert allclose(f, answer) |
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| 405 | os.remove(fileName) |
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| 406 | os.remove(fileName_pts) |
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| 407 | |
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| 408 | def test_fit_to_mesh(self): |
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| 409 | |
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| 410 | a = [-1.0, 0.0] |
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| 411 | b = [3.0, 4.0] |
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| 412 | c = [4.0,1.0] |
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| 413 | d = [-3.0, 2.0] #3 |
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| 414 | e = [-1.0,-2.0] |
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| 415 | f = [1.0, -2.0] #5 |
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| 416 | |
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| 417 | vertices = [a, b, c, d,e,f] |
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| 418 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
|---|
| 419 | |
|---|
| 420 | |
|---|
| 421 | fileName = tempfile.mktemp(".ddd") |
|---|
| 422 | file = open(fileName,"w") |
|---|
| 423 | file.write(" x,y, elevation \n\ |
|---|
| 424 | -2.0, 2.0, 0.\n\ |
|---|
| 425 | -1.0, 1.0, 0.\n\ |
|---|
| 426 | 0.0, 2.0 , 2.\n\ |
|---|
| 427 | 1.0, 1.0 , 2.\n\ |
|---|
| 428 | 2.0, 1.0 ,3. \n\ |
|---|
| 429 | 0.0, 0.0 , 0.\n\ |
|---|
| 430 | 1.0, 0.0 , 1.\n\ |
|---|
| 431 | 0.0, -1.0, -1.\n\ |
|---|
| 432 | -0.2, -0.5, -0.7\n\ |
|---|
| 433 | -0.9, -1.5, -2.4\n\ |
|---|
| 434 | 0.5, -1.9, -1.4\n\ |
|---|
| 435 | 3.0, 1.0 , 4.\n") |
|---|
| 436 | file.close() |
|---|
| 437 | |
|---|
| 438 | f = fit_to_mesh(fileName, vertices, triangles, |
|---|
| 439 | alpha=0.0, max_read_lines=2) |
|---|
| 440 | #use_cache=True, verbose=True) |
|---|
| 441 | answer = linear_function(vertices) |
|---|
| 442 | #print "f\n",f |
|---|
| 443 | #print "answer\n",answer |
|---|
| 444 | assert allclose(f, answer) |
|---|
| 445 | |
|---|
| 446 | os.remove(fileName) |
|---|
| 447 | |
|---|
| 448 | def test_fit_to_mesh_2_atts(self): |
|---|
| 449 | |
|---|
| 450 | a = [-1.0, 0.0] |
|---|
| 451 | b = [3.0, 4.0] |
|---|
| 452 | c = [4.0,1.0] |
|---|
| 453 | d = [-3.0, 2.0] #3 |
|---|
| 454 | e = [-1.0,-2.0] |
|---|
| 455 | f = [1.0, -2.0] #5 |
|---|
| 456 | |
|---|
| 457 | vertices = [a, b, c, d,e,f] |
|---|
| 458 | triangles = [[0,1,3], [1,0,2], [0,4,5], [0,5,2]] #abd bac aef afc |
|---|
| 459 | |
|---|
| 460 | |
|---|
| 461 | fileName = tempfile.mktemp(".ddd") |
|---|
| 462 | file = open(fileName,"w") |
|---|
| 463 | # the 2nd att name is wacky so it's the first key off a hash table |
|---|
| 464 | file.write(" x,y, elevation, afriqction \n\ |
|---|
| 465 | -2.0, 2.0, 0., 0.\n\ |
|---|
| 466 | -1.0, 1.0, 0., 0.\n\ |
|---|
| 467 | 0.0, 2.0 , 2., 20.\n\ |
|---|
| 468 | 1.0, 1.0 , 2., 20.\n\ |
|---|
| 469 | 2.0, 1.0 ,3., 30. \n\ |
|---|
| 470 | 0.0, 0.0 , 0., 0.\n\ |
|---|
| 471 | 1.0, 0.0 , 1., 10.\n\ |
|---|
| 472 | 0.0, -1.0, -1., -10.\n\ |
|---|
| 473 | -0.2, -0.5, -0.7, -7.\n\ |
|---|
| 474 | -0.9, -1.5, -2.4, -24. \n\ |
|---|
| 475 | 0.5, -1.9, -1.4, -14. \n\ |
|---|
| 476 | 3.0, 1.0 , 4., 40. \n") |
|---|
| 477 | file.close() |
|---|
| 478 | |
|---|
| 479 | f = fit_to_mesh(fileName, vertices, triangles, |
|---|
| 480 | alpha=0.0, |
|---|
| 481 | attribute_name='elevation', max_read_lines=2) |
|---|
| 482 | answer = linear_function(vertices) |
|---|
| 483 | #print "f\n",f |
|---|
| 484 | #print "answer\n",answer |
|---|
| 485 | assert allclose(f, answer) |
|---|
| 486 | os.remove(fileName) |
|---|
| 487 | |
|---|
| 488 | def test_fit_and_interpolation(self): |
|---|
| 489 | |
|---|
| 490 | a = [0.0, 0.0] |
|---|
| 491 | b = [0.0, 2.0] |
|---|
| 492 | c = [2.0, 0.0] |
|---|
| 493 | d = [0.0, 4.0] |
|---|
| 494 | e = [2.0, 2.0] |
|---|
| 495 | f = [4.0, 0.0] |
|---|
| 496 | |
|---|
| 497 | points = [a, b, c, d, e, f] |
|---|
| 498 | #bac, bce, ecf, dbe, daf, dae |
|---|
| 499 | triangles = [[1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
|---|
| 500 | |
|---|
| 501 | #Get (enough) datapoints |
|---|
| 502 | data_points = [[ 0.66666667, 0.66666667], |
|---|
| 503 | [ 1.33333333, 1.33333333], |
|---|
| 504 | [ 2.66666667, 0.66666667], |
|---|
| 505 | [ 0.66666667, 2.66666667], |
|---|
| 506 | [ 0.0, 1.0], |
|---|
| 507 | [ 0.0, 3.0], |
|---|
| 508 | [ 1.0, 0.0], |
|---|
| 509 | [ 1.0, 1.0], |
|---|
| 510 | [ 1.0, 2.0], |
|---|
| 511 | [ 1.0, 3.0], |
|---|
| 512 | [ 2.0, 1.0], |
|---|
| 513 | [ 3.0, 0.0], |
|---|
| 514 | [ 3.0, 1.0]] |
|---|
| 515 | |
|---|
| 516 | z = linear_function(data_points) |
|---|
| 517 | interp = Fit(points, triangles, |
|---|
| 518 | alpha=0.0) |
|---|
| 519 | |
|---|
| 520 | answer = linear_function(points) |
|---|
| 521 | |
|---|
| 522 | f = interp.fit(data_points, z) |
|---|
| 523 | |
|---|
| 524 | #print "f",f |
|---|
| 525 | #print "answer",answer |
|---|
| 526 | assert allclose(f, answer) |
|---|
| 527 | |
|---|
| 528 | |
|---|
| 529 | def test_smoothing_and_interpolation(self): |
|---|
| 530 | |
|---|
| 531 | a = [0.0, 0.0] |
|---|
| 532 | b = [0.0, 2.0] |
|---|
| 533 | c = [2.0, 0.0] |
|---|
| 534 | d = [0.0, 4.0] |
|---|
| 535 | e = [2.0, 2.0] |
|---|
| 536 | f = [4.0, 0.0] |
|---|
| 537 | |
|---|
| 538 | points = [a, b, c, d, e, f] |
|---|
| 539 | #bac, bce, ecf, dbe, daf, dae |
|---|
| 540 | triangles = [[1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
|---|
| 541 | |
|---|
| 542 | #Get (too few!) datapoints |
|---|
| 543 | data_points = [[ 0.66666667, 0.66666667], |
|---|
| 544 | [ 1.33333333, 1.33333333], |
|---|
| 545 | [ 2.66666667, 0.66666667], |
|---|
| 546 | [ 0.66666667, 2.66666667]] |
|---|
| 547 | |
|---|
| 548 | z = linear_function(data_points) |
|---|
| 549 | answer = linear_function(points) |
|---|
| 550 | |
|---|
| 551 | #Make interpolator with too few data points and no smoothing |
|---|
| 552 | interp = Fit(points, triangles, alpha=0.0) |
|---|
| 553 | #Must raise an exception |
|---|
| 554 | try: |
|---|
| 555 | f = interp.fit(data_points,z) |
|---|
| 556 | except TooFewPointsError: |
|---|
| 557 | pass |
|---|
| 558 | |
|---|
| 559 | #Now try with smoothing parameter |
|---|
| 560 | interp = Fit(points, triangles, alpha=1.0e-13) |
|---|
| 561 | |
|---|
| 562 | f = interp.fit(data_points,z) |
|---|
| 563 | #f will be different from answer due to smoothing |
|---|
| 564 | assert allclose(f, answer,atol=5) |
|---|
| 565 | |
|---|
| 566 | |
|---|
| 567 | #Tests of smoothing matrix |
|---|
| 568 | def test_smoothing_matrix_one_triangle(self): |
|---|
| 569 | from Numeric import dot |
|---|
| 570 | a = [0.0, 0.0] |
|---|
| 571 | b = [0.0, 2.0] |
|---|
| 572 | c = [2.0,0.0] |
|---|
| 573 | points = [a, b, c] |
|---|
| 574 | |
|---|
| 575 | vertices = [ [1,0,2] ] #bac |
|---|
| 576 | |
|---|
| 577 | interp = Fit(points, vertices) |
|---|
| 578 | |
|---|
| 579 | assert allclose(interp.get_D(), [[1, -0.5, -0.5], |
|---|
| 580 | [-0.5, 0.5, 0], |
|---|
| 581 | [-0.5, 0, 0.5]]) |
|---|
| 582 | |
|---|
| 583 | #Define f(x,y) = x |
|---|
| 584 | f = array([0,0,2]) #Value at global vertex 2 |
|---|
| 585 | |
|---|
| 586 | #Check that int (df/dx)**2 + (df/dy)**2 dx dy = |
|---|
| 587 | # int 1 dx dy = area = 2 |
|---|
| 588 | assert dot(dot(f, interp.get_D()), f) == 2 |
|---|
| 589 | |
|---|
| 590 | #Define f(x,y) = y |
|---|
| 591 | f = array([0,2,0]) #Value at global vertex 1 |
|---|
| 592 | |
|---|
| 593 | #Check that int (df/dx)**2 + (df/dy)**2 dx dy = |
|---|
| 594 | # int 1 dx dy = area = 2 |
|---|
| 595 | assert dot(dot(f, interp.get_D()), f) == 2 |
|---|
| 596 | |
|---|
| 597 | #Define f(x,y) = x+y |
|---|
| 598 | f = array([0,2,2]) #Values at global vertex 1 and 2 |
|---|
| 599 | |
|---|
| 600 | #Check that int (df/dx)**2 + (df/dy)**2 dx dy = |
|---|
| 601 | # int 2 dx dy = 2*area = 4 |
|---|
| 602 | assert dot(dot(f, interp.get_D()), f) == 4 |
|---|
| 603 | |
|---|
| 604 | |
|---|
| 605 | def test_smoothing_matrix_more_triangles(self): |
|---|
| 606 | from Numeric import dot |
|---|
| 607 | |
|---|
| 608 | a = [0.0, 0.0] |
|---|
| 609 | b = [0.0, 2.0] |
|---|
| 610 | c = [2.0,0.0] |
|---|
| 611 | d = [0.0, 4.0] |
|---|
| 612 | e = [2.0, 2.0] |
|---|
| 613 | f = [4.0,0.0] |
|---|
| 614 | |
|---|
| 615 | points = [a, b, c, d, e, f] |
|---|
| 616 | #bac, bce, ecf, dbe, daf, dae |
|---|
| 617 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
|---|
| 618 | |
|---|
| 619 | interp = Fit(points, vertices) |
|---|
| 620 | |
|---|
| 621 | |
|---|
| 622 | #assert allclose(interp.get_D(), [[1, -0.5, -0.5], |
|---|
| 623 | # [-0.5, 0.5, 0], |
|---|
| 624 | # [-0.5, 0, 0.5]]) |
|---|
| 625 | |
|---|
| 626 | #Define f(x,y) = x |
|---|
| 627 | f = array([0,0,2,0,2,4]) #f evaluated at points a-f |
|---|
| 628 | |
|---|
| 629 | #Check that int (df/dx)**2 + (df/dy)**2 dx dy = |
|---|
| 630 | # int 1 dx dy = total area = 8 |
|---|
| 631 | assert dot(dot(f, interp.get_D()), f) == 8 |
|---|
| 632 | |
|---|
| 633 | #Define f(x,y) = y |
|---|
| 634 | f = array([0,2,0,4,2,0]) #f evaluated at points a-f |
|---|
| 635 | |
|---|
| 636 | #Check that int (df/dx)**2 + (df/dy)**2 dx dy = |
|---|
| 637 | # int 1 dx dy = area = 8 |
|---|
| 638 | assert dot(dot(f, interp.get_D()), f) == 8 |
|---|
| 639 | |
|---|
| 640 | #Define f(x,y) = x+y |
|---|
| 641 | f = array([0,2,2,4,4,4]) #f evaluated at points a-f |
|---|
| 642 | |
|---|
| 643 | #Check that int (df/dx)**2 + (df/dy)**2 dx dy = |
|---|
| 644 | # int 2 dx dy = 2*area = 16 |
|---|
| 645 | assert dot(dot(f, interp.get_D()), f) == 16 |
|---|
| 646 | |
|---|
| 647 | |
|---|
| 648 | |
|---|
| 649 | def test_fit_and_interpolation_with_different_origins(self): |
|---|
| 650 | """Fit a surface to one set of points. Then interpolate that surface |
|---|
| 651 | using another set of points. |
|---|
| 652 | This test tests situtaion where points and mesh belong to a different |
|---|
| 653 | coordinate system as defined by origin. |
|---|
| 654 | """ |
|---|
| 655 | |
|---|
| 656 | #Setup mesh used to represent fitted function |
|---|
| 657 | a = [0.0, 0.0] |
|---|
| 658 | b = [0.0, 2.0] |
|---|
| 659 | c = [2.0, 0.0] |
|---|
| 660 | d = [0.0, 4.0] |
|---|
| 661 | e = [2.0, 2.0] |
|---|
| 662 | f = [4.0, 0.0] |
|---|
| 663 | |
|---|
| 664 | points = [a, b, c, d, e, f] |
|---|
| 665 | #bac, bce, ecf, dbe, daf, dae |
|---|
| 666 | triangles = [[1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
|---|
| 667 | |
|---|
| 668 | #Datapoints to fit from |
|---|
| 669 | data_points1 = [[ 0.66666667, 0.66666667], |
|---|
| 670 | [ 1.33333333, 1.33333333], |
|---|
| 671 | [ 2.66666667, 0.66666667], |
|---|
| 672 | [ 0.66666667, 2.66666667], |
|---|
| 673 | [ 0.0, 1.0], |
|---|
| 674 | [ 0.0, 3.0], |
|---|
| 675 | [ 1.0, 0.0], |
|---|
| 676 | [ 1.0, 1.0], |
|---|
| 677 | [ 1.0, 2.0], |
|---|
| 678 | [ 1.0, 3.0], |
|---|
| 679 | [ 2.0, 1.0], |
|---|
| 680 | [ 3.0, 0.0], |
|---|
| 681 | [ 3.0, 1.0]] |
|---|
| 682 | |
|---|
| 683 | |
|---|
| 684 | #First check that things are OK when using same origin |
|---|
| 685 | mesh_origin = (56, 290000, 618000) #zone, easting, northing |
|---|
| 686 | data_origin = (56, 290000, 618000) #zone, easting, northing |
|---|
| 687 | |
|---|
| 688 | |
|---|
| 689 | #Fit surface to mesh |
|---|
| 690 | interp = Fit(points, triangles, |
|---|
| 691 | alpha=0.0, |
|---|
| 692 | mesh_origin = mesh_origin) |
|---|
| 693 | |
|---|
| 694 | data_geo_spatial = Geospatial_data(data_points1, |
|---|
| 695 | geo_reference = Geo_reference(56, 290000, 618000)) |
|---|
| 696 | z = linear_function(data_points1) #Example z-values |
|---|
| 697 | f = interp.fit(data_geo_spatial, z) #Fitted values at vertices |
|---|
| 698 | |
|---|
| 699 | #Shift datapoints according to new origins |
|---|
| 700 | for k in range(len(data_points1)): |
|---|
| 701 | data_points1[k][0] += mesh_origin[1] - data_origin[1] |
|---|
| 702 | data_points1[k][1] += mesh_origin[2] - data_origin[2] |
|---|
| 703 | |
|---|
| 704 | |
|---|
| 705 | |
|---|
| 706 | #Fit surface to mesh |
|---|
| 707 | interp = Fit(points, triangles, alpha=0.0) |
|---|
| 708 | #Fitted values at vertices (using same z as before) |
|---|
| 709 | f1 = interp.fit(data_points1,z) |
|---|
| 710 | |
|---|
| 711 | assert allclose(f,f1), 'Fit should have been unaltered' |
|---|
| 712 | |
|---|
| 713 | |
|---|
| 714 | def test_smooth_attributes_to_mesh_function(self): |
|---|
| 715 | #Testing 2 attributes smoothed to the mesh |
|---|
| 716 | |
|---|
| 717 | |
|---|
| 718 | a = [0.0, 0.0] |
|---|
| 719 | b = [0.0, 5.0] |
|---|
| 720 | c = [5.0, 0.0] |
|---|
| 721 | points = [a, b, c] |
|---|
| 722 | triangles = [ [1,0,2] ] #bac |
|---|
| 723 | |
|---|
| 724 | d1 = [1.0, 1.0] |
|---|
| 725 | d2 = [1.0, 3.0] |
|---|
| 726 | d3 = [3.0, 1.0] |
|---|
| 727 | z1 = [2, 4] |
|---|
| 728 | z2 = [4, 8] |
|---|
| 729 | z3 = [4, 8] |
|---|
| 730 | data_coords = [d1, d2, d3] |
|---|
| 731 | z = [z1, z2, z3] |
|---|
| 732 | |
|---|
| 733 | f = fit_to_mesh(data_coords, vertex_coordinates=points, |
|---|
| 734 | triangles=triangles, |
|---|
| 735 | point_attributes=z, alpha=0.0) |
|---|
| 736 | answer = [[0, 0], [5., 10.], [5., 10.]] |
|---|
| 737 | |
|---|
| 738 | assert allclose(f, answer) |
|---|
| 739 | |
|---|
| 740 | def test_fit_to_mesh_w_georef(self): |
|---|
| 741 | """Simple check that georef works at the fit_to_mesh level |
|---|
| 742 | """ |
|---|
| 743 | |
|---|
| 744 | from anuga.coordinate_transforms.geo_reference import Geo_reference |
|---|
| 745 | |
|---|
| 746 | #Mesh |
|---|
| 747 | vertex_coordinates = [[0.76, 0.76], |
|---|
| 748 | [0.76, 5.76], |
|---|
| 749 | [5.76, 0.76]] |
|---|
| 750 | triangles = [[0,2,1]] |
|---|
| 751 | |
|---|
| 752 | mesh_geo = Geo_reference(56,-0.76,-0.76) |
|---|
| 753 | #print "mesh_geo.get_absolute(vertex_coordinates)", \ |
|---|
| 754 | # mesh_geo.get_absolute(vertex_coordinates) |
|---|
| 755 | |
|---|
| 756 | #Data |
|---|
| 757 | data_points = [[ 201.0, 401.0], |
|---|
| 758 | [ 201.0, 403.0], |
|---|
| 759 | [ 203.0, 401.0]] |
|---|
| 760 | |
|---|
| 761 | z = [2, 4, 4] |
|---|
| 762 | |
|---|
| 763 | data_geo = Geo_reference(56,-200,-400) |
|---|
| 764 | |
|---|
| 765 | #print "data_geo.get_absolute(data_points)", \ |
|---|
| 766 | # data_geo.get_absolute(data_points) |
|---|
| 767 | |
|---|
| 768 | #Fit |
|---|
| 769 | zz = fit_to_mesh(data_points, vertex_coordinates=vertex_coordinates, |
|---|
| 770 | triangles=triangles, |
|---|
| 771 | point_attributes=z, |
|---|
| 772 | data_origin = data_geo.get_origin(), |
|---|
| 773 | mesh_origin = mesh_geo.get_origin(), |
|---|
| 774 | alpha = 0) |
|---|
| 775 | assert allclose( zz, [0,5,5] ) |
|---|
| 776 | |
|---|
| 777 | |
|---|
| 778 | def test_fit_to_mesh_file2domain(self): |
|---|
| 779 | from load_mesh.loadASCII import import_mesh_file, \ |
|---|
| 780 | export_mesh_file |
|---|
| 781 | import tempfile |
|---|
| 782 | import os |
|---|
| 783 | |
|---|
| 784 | # create a .tsh file, no user outline |
|---|
| 785 | mesh_dic = {} |
|---|
| 786 | mesh_dic['vertices'] = [[0.0, 0.0], |
|---|
| 787 | [0.0, 5.0], |
|---|
| 788 | [5.0, 0.0]] |
|---|
| 789 | mesh_dic['triangles'] = [[0, 2, 1]] |
|---|
| 790 | mesh_dic['segments'] = [[0, 1], [2, 0], [1, 2]] |
|---|
| 791 | mesh_dic['triangle_tags'] = [''] |
|---|
| 792 | mesh_dic['vertex_attributes'] = [[], [], []] |
|---|
| 793 | mesh_dic['vertiex_attribute_titles'] = [] |
|---|
| 794 | mesh_dic['triangle_neighbors'] = [[-1, -1, -1]] |
|---|
| 795 | mesh_dic['segment_tags'] = ['external', |
|---|
| 796 | 'external', |
|---|
| 797 | 'external'] |
|---|
| 798 | mesh_file = tempfile.mktemp(".tsh") |
|---|
| 799 | export_mesh_file(mesh_file,mesh_dic) |
|---|
| 800 | |
|---|
| 801 | # create a points .csv file |
|---|
| 802 | point_file = tempfile.mktemp(".csv") |
|---|
| 803 | fd = open(point_file,'w') |
|---|
| 804 | fd.write("x,y, elevation, stage \n\ |
|---|
| 805 | 1.0, 1.0,2.,4 \n\ |
|---|
| 806 | 1.0, 3.0,4,8 \n\ |
|---|
| 807 | 3.0,1.0,4.,8 \n") |
|---|
| 808 | fd.close() |
|---|
| 809 | |
|---|
| 810 | mesh_output_file = tempfile.mktemp(".tsh") |
|---|
| 811 | fit_to_mesh_file(mesh_file, |
|---|
| 812 | point_file, |
|---|
| 813 | mesh_output_file, |
|---|
| 814 | alpha = 0.0) |
|---|
| 815 | # load in the .tsh file we just wrote |
|---|
| 816 | mesh_dic = import_mesh_file(mesh_output_file) |
|---|
| 817 | #print "mesh_dic",mesh_dic |
|---|
| 818 | ans =[[0.0, 0.0], |
|---|
| 819 | [5.0, 10.0], |
|---|
| 820 | [5.0,10.0]] |
|---|
| 821 | assert allclose(mesh_dic['vertex_attributes'],ans) |
|---|
| 822 | |
|---|
| 823 | self.failUnless(mesh_dic['vertex_attribute_titles'] == |
|---|
| 824 | ['elevation','stage'], |
|---|
| 825 | 'test_fit_to_mesh_file failed') |
|---|
| 826 | domain = Domain(mesh_output_file, use_cache=True, verbose=False) |
|---|
| 827 | |
|---|
| 828 | answer = [0., 5., 5.] |
|---|
| 829 | assert allclose(domain.quantities['elevation'].vertex_values, |
|---|
| 830 | answer) |
|---|
| 831 | #clean up |
|---|
| 832 | os.remove(mesh_file) |
|---|
| 833 | os.remove(point_file) |
|---|
| 834 | os.remove(mesh_output_file) |
|---|
| 835 | |
|---|
| 836 | def test_fit_to_mesh_file3(self): |
|---|
| 837 | from load_mesh.loadASCII import import_mesh_file, \ |
|---|
| 838 | export_mesh_file |
|---|
| 839 | import tempfile |
|---|
| 840 | import os |
|---|
| 841 | |
|---|
| 842 | # create a .tsh file, no user outline |
|---|
| 843 | mesh_dic = {} |
|---|
| 844 | mesh_dic['vertices'] = [[0.76, 0.76], |
|---|
| 845 | [0.76, 5.76], |
|---|
| 846 | [5.76, 0.76]] |
|---|
| 847 | mesh_dic['triangles'] = [[0, 2, 1]] |
|---|
| 848 | mesh_dic['segments'] = [[0, 1], [2, 0], [1, 2]] |
|---|
| 849 | mesh_dic['triangle_tags'] = [''] |
|---|
| 850 | mesh_dic['vertex_attributes'] = [[], [], []] |
|---|
| 851 | mesh_dic['vertiex_attribute_titles'] = [] |
|---|
| 852 | mesh_dic['triangle_neighbors'] = [[-1, -1, -1]] |
|---|
| 853 | mesh_dic['segment_tags'] = ['external', |
|---|
| 854 | 'external', |
|---|
| 855 | 'external'] |
|---|
| 856 | mesh_dic['geo_reference'] = Geo_reference(56,-0.76,-0.76) |
|---|
| 857 | mesh_file = tempfile.mktemp(".tsh") |
|---|
| 858 | export_mesh_file(mesh_file,mesh_dic) |
|---|
| 859 | |
|---|
| 860 | # create a points .csv file |
|---|
| 861 | point_file = tempfile.mktemp(".csv") |
|---|
| 862 | fd = open(point_file,'w') |
|---|
| 863 | fd.write("x,y, elevation, stage \n\ |
|---|
| 864 | 1.0, 1.0,2.,4 \n\ |
|---|
| 865 | 1.0, 3.0,4,8 \n\ |
|---|
| 866 | 3.0,1.0,4.,8 \n") |
|---|
| 867 | fd.close() |
|---|
| 868 | |
|---|
| 869 | mesh_output_file = tempfile.mktemp(".tsh") |
|---|
| 870 | fit_to_mesh_file(mesh_file, |
|---|
| 871 | point_file, |
|---|
| 872 | mesh_output_file, |
|---|
| 873 | alpha = 0.0) |
|---|
| 874 | # load in the .tsh file we just wrote |
|---|
| 875 | mesh_dic = import_mesh_file(mesh_output_file) |
|---|
| 876 | #print "mesh_dic",mesh_dic |
|---|
| 877 | ans =[[0.0, 0.0], |
|---|
| 878 | [5.0, 10.0], |
|---|
| 879 | [5.0,10.0]] |
|---|
| 880 | assert allclose(mesh_dic['vertex_attributes'],ans) |
|---|
| 881 | |
|---|
| 882 | self.failUnless(mesh_dic['vertex_attribute_titles'] == |
|---|
| 883 | ['elevation','stage'], |
|---|
| 884 | 'test_fit_to_mesh_file failed') |
|---|
| 885 | |
|---|
| 886 | #clean up |
|---|
| 887 | os.remove(mesh_file) |
|---|
| 888 | os.remove(point_file) |
|---|
| 889 | os.remove(mesh_output_file) |
|---|
| 890 | |
|---|
| 891 | def test_fit_to_mesh_fileII(self): |
|---|
| 892 | from load_mesh.loadASCII import import_mesh_file, \ |
|---|
| 893 | export_mesh_file |
|---|
| 894 | import tempfile |
|---|
| 895 | import os |
|---|
| 896 | |
|---|
| 897 | # create a .tsh file, no user outline |
|---|
| 898 | mesh_dic = {} |
|---|
| 899 | mesh_dic['vertices'] = [[0.0, 0.0], |
|---|
| 900 | [0.0, 5.0], |
|---|
| 901 | [5.0, 0.0]] |
|---|
| 902 | mesh_dic['triangles'] = [[0, 2, 1]] |
|---|
| 903 | mesh_dic['segments'] = [[0, 1], [2, 0], [1, 2]] |
|---|
| 904 | mesh_dic['triangle_tags'] = [''] |
|---|
| 905 | mesh_dic['vertex_attributes'] = [[1,2], [1,2], [1,2]] |
|---|
| 906 | mesh_dic['vertex_attribute_titles'] = ['density', 'temp'] |
|---|
| 907 | mesh_dic['triangle_neighbors'] = [[-1, -1, -1]] |
|---|
| 908 | mesh_dic['segment_tags'] = ['external', |
|---|
| 909 | 'external', |
|---|
| 910 | 'external'] |
|---|
| 911 | mesh_file = tempfile.mktemp(".tsh") |
|---|
| 912 | export_mesh_file(mesh_file,mesh_dic) |
|---|
| 913 | |
|---|
| 914 | # create a points .csv file |
|---|
| 915 | point_file = tempfile.mktemp(".csv") |
|---|
| 916 | fd = open(point_file,'w') |
|---|
| 917 | fd.write("x,y,elevation, stage \n\ |
|---|
| 918 | 1.0, 1.0,2.,4 \n\ |
|---|
| 919 | 1.0, 3.0,4,8 \n\ |
|---|
| 920 | 3.0,1.0,4.,8 \n") |
|---|
| 921 | fd.close() |
|---|
| 922 | |
|---|
| 923 | mesh_output_file = "new_triangle.tsh" |
|---|
| 924 | fit_to_mesh_file(mesh_file, |
|---|
| 925 | point_file, |
|---|
| 926 | mesh_output_file, |
|---|
| 927 | alpha = 0.0) |
|---|
| 928 | # load in the .tsh file we just wrote |
|---|
| 929 | mesh_dic = import_mesh_file(mesh_output_file) |
|---|
| 930 | |
|---|
| 931 | assert allclose(mesh_dic['vertex_attributes'], |
|---|
| 932 | [[1.0, 2.0,0.0, 0.0], |
|---|
| 933 | [1.0, 2.0,5.0, 10.0], |
|---|
| 934 | [1.0, 2.0,5.0,10.0]]) |
|---|
| 935 | |
|---|
| 936 | self.failUnless(mesh_dic['vertex_attribute_titles'] == |
|---|
| 937 | ['density', 'temp','elevation','stage'], |
|---|
| 938 | 'test_fit_to_mesh_file failed') |
|---|
| 939 | |
|---|
| 940 | #clean up |
|---|
| 941 | os.remove(mesh_file) |
|---|
| 942 | os.remove(mesh_output_file) |
|---|
| 943 | os.remove(point_file) |
|---|
| 944 | |
|---|
| 945 | def test_fit_to_mesh_file_errors(self): |
|---|
| 946 | from load_mesh.loadASCII import import_mesh_file, export_mesh_file |
|---|
| 947 | import tempfile |
|---|
| 948 | import os |
|---|
| 949 | |
|---|
| 950 | # create a .tsh file, no user outline |
|---|
| 951 | mesh_dic = {} |
|---|
| 952 | mesh_dic['vertices'] = [[0.0, 0.0],[0.0, 5.0],[5.0, 0.0]] |
|---|
| 953 | mesh_dic['triangles'] = [[0, 2, 1]] |
|---|
| 954 | mesh_dic['segments'] = [[0, 1], [2, 0], [1, 2]] |
|---|
| 955 | mesh_dic['triangle_tags'] = [''] |
|---|
| 956 | mesh_dic['vertex_attributes'] = [[1,2], [1,2], [1,2]] |
|---|
| 957 | mesh_dic['vertex_attribute_titles'] = ['density', 'temp'] |
|---|
| 958 | mesh_dic['triangle_neighbors'] = [[-1, -1, -1]] |
|---|
| 959 | mesh_dic['segment_tags'] = ['external', 'external','external'] |
|---|
| 960 | mesh_file = tempfile.mktemp(".tsh") |
|---|
| 961 | export_mesh_file(mesh_file,mesh_dic) |
|---|
| 962 | |
|---|
| 963 | # create a bad points .csv file |
|---|
| 964 | point_file = tempfile.mktemp(".csv") |
|---|
| 965 | fd = open(point_file,'w') |
|---|
| 966 | fd.write("x,y,elevation stage \n\ |
|---|
| 967 | 1.0, 1.0,2.,4 \n\ |
|---|
| 968 | 1.0, 3.0,4,8 \n\ |
|---|
| 969 | 3.0,1.0,4.,8 \n") |
|---|
| 970 | fd.close() |
|---|
| 971 | |
|---|
| 972 | mesh_output_file = "new_triangle.tsh" |
|---|
| 973 | try: |
|---|
| 974 | fit_to_mesh_file(mesh_file, point_file, |
|---|
| 975 | mesh_output_file, display_errors = False) |
|---|
| 976 | except SyntaxError: |
|---|
| 977 | pass |
|---|
| 978 | else: |
|---|
| 979 | #self.failUnless(0 ==1, 'Bad file did not raise error!') |
|---|
| 980 | raise 'Bad file did not raise error!' |
|---|
| 981 | |
|---|
| 982 | #clean up |
|---|
| 983 | os.remove(mesh_file) |
|---|
| 984 | os.remove(point_file) |
|---|
| 985 | |
|---|
| 986 | def test_fit_to_mesh_file_errorsII(self): |
|---|
| 987 | from load_mesh.loadASCII import import_mesh_file, export_mesh_file |
|---|
| 988 | import tempfile |
|---|
| 989 | import os |
|---|
| 990 | |
|---|
| 991 | # create a .tsh file, no user outline |
|---|
| 992 | mesh_file = tempfile.mktemp(".tsh") |
|---|
| 993 | fd = open(mesh_file,'w') |
|---|
| 994 | fd.write("unit testing a bad .tsh file \n") |
|---|
| 995 | fd.close() |
|---|
| 996 | |
|---|
| 997 | # create a points .csv file |
|---|
| 998 | point_file = tempfile.mktemp(".csv") |
|---|
| 999 | fd = open(point_file,'w') |
|---|
| 1000 | fd.write("x,y,elevation, stage \n\ |
|---|
| 1001 | 1.0, 1.0,2.,4 \n\ |
|---|
| 1002 | 1.0, 3.0,4,8 \n\ |
|---|
| 1003 | 3.0,1.0,4.,8 \n") |
|---|
| 1004 | fd.close() |
|---|
| 1005 | |
|---|
| 1006 | mesh_output_file = "new_triangle.tsh" |
|---|
| 1007 | try: |
|---|
| 1008 | fit_to_mesh_file(mesh_file, point_file, |
|---|
| 1009 | mesh_output_file, display_errors = False) |
|---|
| 1010 | except IOError: |
|---|
| 1011 | pass |
|---|
| 1012 | else: |
|---|
| 1013 | raise 'Bad file did not raise error!' |
|---|
| 1014 | |
|---|
| 1015 | #clean up |
|---|
| 1016 | os.remove(mesh_file) |
|---|
| 1017 | os.remove(point_file) |
|---|
| 1018 | |
|---|
| 1019 | def test_fit_to_mesh_file_errorsIII(self): |
|---|
| 1020 | from load_mesh.loadASCII import import_mesh_file, export_mesh_file |
|---|
| 1021 | import tempfile |
|---|
| 1022 | import os |
|---|
| 1023 | |
|---|
| 1024 | # create a .tsh file, no user outline |
|---|
| 1025 | mesh_dic = {} |
|---|
| 1026 | mesh_dic['vertices'] = [[0.0, 0.0],[0.0, 5.0],[5.0, 0.0]] |
|---|
| 1027 | mesh_dic['triangles'] = [[0, 2, 1]] |
|---|
| 1028 | mesh_dic['segments'] = [[0, 1], [2, 0], [1, 2]] |
|---|
| 1029 | mesh_dic['triangle_tags'] = [''] |
|---|
| 1030 | mesh_dic['vertex_attributes'] = [[1,2], [1,2], [1,2]] |
|---|
| 1031 | mesh_dic['vertex_attribute_titles'] = ['density', 'temp'] |
|---|
| 1032 | mesh_dic['triangle_neighbors'] = [[-1, -1, -1]] |
|---|
| 1033 | mesh_dic['segment_tags'] = ['external', 'external','external'] |
|---|
| 1034 | mesh_file = tempfile.mktemp(".tsh") |
|---|
| 1035 | export_mesh_file(mesh_file,mesh_dic) |
|---|
| 1036 | |
|---|
| 1037 | |
|---|
| 1038 | # create a points .csv file |
|---|
| 1039 | point_file = tempfile.mktemp(".csv") |
|---|
| 1040 | fd = open(point_file,'w') |
|---|
| 1041 | fd.write("x,y,elevation, stage \n\ |
|---|
| 1042 | 1.0, 1.0,2.,4 \n\ |
|---|
| 1043 | 1.0, 3.0,4,8 \n\ |
|---|
| 1044 | 3.0,1.0,4.,8 \n") |
|---|
| 1045 | fd.close() |
|---|
| 1046 | |
|---|
| 1047 | #This a deliberately illegal filename to invoke the error. |
|---|
| 1048 | mesh_output_file = ".../\z\z:ya.tsh" |
|---|
| 1049 | |
|---|
| 1050 | try: |
|---|
| 1051 | fit_to_mesh_file(mesh_file, point_file, |
|---|
| 1052 | mesh_output_file, display_errors = False) |
|---|
| 1053 | except IOError: |
|---|
| 1054 | pass |
|---|
| 1055 | else: |
|---|
| 1056 | raise 'Bad file did not raise error!' |
|---|
| 1057 | |
|---|
| 1058 | #clean up |
|---|
| 1059 | os.remove(mesh_file) |
|---|
| 1060 | os.remove(point_file) |
|---|
| 1061 | |
|---|
| 1062 | def Not_yet_test_smooth_att_to_mesh_with_excess_verts(self): |
|---|
| 1063 | |
|---|
| 1064 | a = [0.0, 0.0] |
|---|
| 1065 | b = [0.0, 5.0] |
|---|
| 1066 | c = [5.0, 0.0] |
|---|
| 1067 | d = [1.0, 1.0] |
|---|
| 1068 | e = [18.0, 1000.0] |
|---|
| 1069 | |
|---|
| 1070 | points = [a, b, c, d, e] |
|---|
| 1071 | triangles = [ [1,0,2] ] #bac |
|---|
| 1072 | |
|---|
| 1073 | d1 = [1.0, 1.0] |
|---|
| 1074 | d2 = [1.0, 2.0] |
|---|
| 1075 | d3 = [3.0,1.0] |
|---|
| 1076 | d4 = [2.0,3.0] |
|---|
| 1077 | d5 = [2.0,2.0] |
|---|
| 1078 | d6 = [1.0,3.0] |
|---|
| 1079 | data_coords = [d1, d2, d3, d4, d5, d6] |
|---|
| 1080 | z = linear_function(data_coords) |
|---|
| 1081 | #print "z",z |
|---|
| 1082 | |
|---|
| 1083 | interp = Fit(points, triangles, alpha=0.0) |
|---|
| 1084 | |
|---|
| 1085 | try: |
|---|
| 1086 | f = interp.fit(data_coords, z) |
|---|
| 1087 | except VertsWithNoTrianglesError: |
|---|
| 1088 | pass |
|---|
| 1089 | else: |
|---|
| 1090 | raise 'Verts with no triangles did not raise error!' |
|---|
| 1091 | |
|---|
| 1092 | #f = interp.fit(data_coords, z) |
|---|
| 1093 | #answer = linear_function(points) |
|---|
| 1094 | |
|---|
| 1095 | # Removing the bad verts that we don't care about |
|---|
| 1096 | #f = f[0:3] |
|---|
| 1097 | #answer = answer[0:3] |
|---|
| 1098 | #assert allclose(f, answer) |
|---|
| 1099 | |
|---|
| 1100 | #------------------------------------------------------------- |
|---|
| 1101 | if __name__ == "__main__": |
|---|
| 1102 | suite = unittest.makeSuite(Test_Fit,'test') |
|---|
| 1103 | #suite = unittest.makeSuite(Test_Fit,'test_smooth_attributes_to_mesh_function') |
|---|
| 1104 | #suite = unittest.makeSuite(Test_Fit,'') |
|---|
| 1105 | runner = unittest.TextTestRunner(verbosity=1) |
|---|
| 1106 | runner.run(suite) |
|---|
| 1107 | |
|---|
| 1108 | |
|---|
| 1109 | |
|---|
| 1110 | |
|---|
| 1111 | |
|---|
