[7742] | 1 | import sys |
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| 2 | import unittest |
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| 3 | import numpy as num |
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| 4 | import copy |
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| 5 | import os |
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| 6 | |
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| 7 | # ANUGA modules |
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| 8 | from anuga.config import netcdf_mode_r, netcdf_mode_w, netcdf_mode_a, \ |
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| 9 | netcdf_float |
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| 10 | |
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| 11 | from dem2pts import dem2pts |
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| 12 | from asc2dem import asc2dem |
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| 13 | |
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| 14 | class Test_Dem2Pts(unittest.TestCase): |
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| 15 | """ A suite of tests to test file conversion functions. |
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| 16 | These tests are quite coarse-grained: converting a file |
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| 17 | and checking that its headers and some of its contents |
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| 18 | are correct. |
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| 19 | """ |
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| 20 | |
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| 21 | def test_dem2pts_bounding_box_v2(self): |
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| 22 | """Test conversion from dem in ascii format to native NetCDF format |
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| 23 | """ |
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| 24 | |
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| 25 | import time, os |
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| 26 | from Scientific.IO.NetCDF import NetCDFFile |
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| 27 | |
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| 28 | #Write test asc file |
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| 29 | root = 'demtest' |
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| 30 | |
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| 31 | filename = root+'.asc' |
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| 32 | fid = open(filename, 'w') |
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| 33 | fid.write("""ncols 10 |
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| 34 | nrows 10 |
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| 35 | xllcorner 2000 |
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| 36 | yllcorner 3000 |
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| 37 | cellsize 1 |
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| 38 | NODATA_value -9999 |
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| 39 | """) |
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| 40 | #Create linear function |
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| 41 | ref_points = [] |
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| 42 | ref_elevation = [] |
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| 43 | x0 = 2000 |
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| 44 | y = 3010 |
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| 45 | yvec = range(10) |
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| 46 | xvec = range(10) |
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| 47 | z = -1 |
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| 48 | for i in range(10): |
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| 49 | y = y - 1 |
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| 50 | for j in range(10): |
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| 51 | x = x0 + xvec[j] |
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| 52 | z += 1 |
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| 53 | ref_points.append ([x,y]) |
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| 54 | ref_elevation.append(z) |
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| 55 | fid.write('%f ' %z) |
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| 56 | fid.write('\n') |
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| 57 | |
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| 58 | fid.close() |
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| 59 | |
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| 60 | #print 'sending pts', ref_points |
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| 61 | #print 'sending elev', ref_elevation |
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| 62 | |
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| 63 | #Write prj file with metadata |
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| 64 | metafilename = root+'.prj' |
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| 65 | fid = open(metafilename, 'w') |
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| 66 | |
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| 67 | |
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| 68 | fid.write("""Projection UTM |
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| 69 | Zone 56 |
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| 70 | Datum WGS84 |
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| 71 | Zunits NO |
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| 72 | Units METERS |
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| 73 | Spheroid WGS84 |
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| 74 | Xshift 0.0000000000 |
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| 75 | Yshift 10000000.0000000000 |
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| 76 | Parameters |
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| 77 | """) |
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| 78 | fid.close() |
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| 79 | |
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| 80 | #Convert to NetCDF pts |
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[7814] | 81 | asc2dem(filename) |
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| 82 | dem2pts(root+'.dem', easting_min=2002.0, easting_max=2007.0, |
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[7742] | 83 | northing_min=3003.0, northing_max=3006.0, |
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| 84 | verbose=False) |
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| 85 | |
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| 86 | #Check contents |
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| 87 | #Get NetCDF |
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| 88 | fid = NetCDFFile(root+'.pts', netcdf_mode_r) |
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| 89 | |
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| 90 | # Get the variables |
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| 91 | #print fid.variables.keys() |
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| 92 | points = fid.variables['points'] |
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| 93 | elevation = fid.variables['elevation'] |
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| 94 | |
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| 95 | #Check values |
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| 96 | assert fid.xllcorner[0] == 2002.0 |
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| 97 | assert fid.yllcorner[0] == 3003.0 |
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| 98 | |
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| 99 | #create new reference points |
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| 100 | newz = [] |
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| 101 | newz[0:5] = ref_elevation[32:38] |
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| 102 | newz[6:11] = ref_elevation[42:48] |
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| 103 | newz[12:17] = ref_elevation[52:58] |
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| 104 | newz[18:23] = ref_elevation[62:68] |
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| 105 | ref_elevation = [] |
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| 106 | ref_elevation = newz |
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| 107 | ref_points = [] |
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| 108 | x0 = 2002 |
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| 109 | y = 3007 |
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| 110 | yvec = range(4) |
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| 111 | xvec = range(6) |
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| 112 | for i in range(4): |
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| 113 | y = y - 1 |
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| 114 | ynew = y - 3003.0 |
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| 115 | for j in range(6): |
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| 116 | x = x0 + xvec[j] |
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| 117 | xnew = x - 2002.0 |
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| 118 | ref_points.append ([xnew,ynew]) #Relative point values |
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| 119 | |
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| 120 | assert num.allclose(points, ref_points) |
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| 121 | |
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| 122 | assert num.allclose(elevation, ref_elevation) |
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| 123 | |
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| 124 | #Cleanup |
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| 125 | fid.close() |
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| 126 | |
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| 127 | |
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| 128 | os.remove(root + '.pts') |
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| 129 | os.remove(root + '.dem') |
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| 130 | os.remove(root + '.asc') |
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| 131 | os.remove(root + '.prj') |
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| 132 | |
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| 133 | |
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| 134 | def test_dem2pts_bounding_box_removeNullvalues_v2(self): |
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| 135 | """Test conversion from dem in ascii format to native NetCDF format |
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| 136 | """ |
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| 137 | |
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| 138 | import time, os |
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| 139 | from Scientific.IO.NetCDF import NetCDFFile |
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| 140 | |
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| 141 | #Write test asc file |
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| 142 | root = 'demtest' |
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| 143 | |
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| 144 | filename = root+'.asc' |
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| 145 | fid = open(filename, 'w') |
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| 146 | fid.write("""ncols 10 |
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| 147 | nrows 10 |
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| 148 | xllcorner 2000 |
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| 149 | yllcorner 3000 |
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| 150 | cellsize 1 |
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| 151 | NODATA_value -9999 |
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| 152 | """) |
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| 153 | #Create linear function |
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| 154 | ref_points = [] |
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| 155 | ref_elevation = [] |
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| 156 | x0 = 2000 |
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| 157 | y = 3010 |
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| 158 | yvec = range(10) |
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| 159 | xvec = range(10) |
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| 160 | #z = range(100) |
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| 161 | z = num.zeros(100, num.int) #array default# |
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| 162 | NODATA_value = -9999 |
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| 163 | count = -1 |
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| 164 | for i in range(10): |
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| 165 | y = y - 1 |
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| 166 | for j in range(10): |
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| 167 | x = x0 + xvec[j] |
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| 168 | ref_points.append ([x,y]) |
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| 169 | count += 1 |
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| 170 | z[count] = (4*i - 3*j)%13 |
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| 171 | if j == 4: z[count] = NODATA_value #column inside clipping region |
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| 172 | if j == 8: z[count] = NODATA_value #column outside clipping region |
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| 173 | if i == 9: z[count] = NODATA_value #row outside clipping region |
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| 174 | if i == 4 and j == 6: z[count] = NODATA_value #arbitrary point inside clipping region |
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| 175 | ref_elevation.append( z[count] ) |
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| 176 | fid.write('%f ' %z[count]) |
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| 177 | fid.write('\n') |
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| 178 | |
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| 179 | fid.close() |
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| 180 | |
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| 181 | #print 'sending elev', ref_elevation |
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| 182 | |
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| 183 | #Write prj file with metadata |
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| 184 | metafilename = root+'.prj' |
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| 185 | fid = open(metafilename, 'w') |
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| 186 | |
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| 187 | |
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| 188 | fid.write("""Projection UTM |
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| 189 | Zone 56 |
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| 190 | Datum WGS84 |
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| 191 | Zunits NO |
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| 192 | Units METERS |
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| 193 | Spheroid WGS84 |
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| 194 | Xshift 0.0000000000 |
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| 195 | Yshift 10000000.0000000000 |
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| 196 | Parameters |
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| 197 | """) |
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| 198 | fid.close() |
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| 199 | |
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| 200 | #Convert to NetCDF pts |
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[7814] | 201 | asc2dem(filename) |
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| 202 | dem2pts(root+'.dem', easting_min=2002.0, easting_max=2007.0, |
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[7742] | 203 | northing_min=3003.0, northing_max=3006.0) |
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| 204 | |
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| 205 | #Check contents |
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| 206 | #Get NetCDF |
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| 207 | fid = NetCDFFile(root+'.pts', netcdf_mode_r) |
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| 208 | |
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| 209 | # Get the variables |
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| 210 | #print fid.variables.keys() |
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| 211 | points = fid.variables['points'] |
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| 212 | elevation = fid.variables['elevation'] |
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| 213 | |
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| 214 | #Check values |
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| 215 | assert fid.xllcorner[0] == 2002.0 |
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| 216 | assert fid.yllcorner[0] == 3003.0 |
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| 217 | |
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| 218 | #create new reference points |
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| 219 | newz = num.zeros(19, num.int) #array default# |
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| 220 | newz[0:2] = ref_elevation[32:34] |
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| 221 | newz[2:5] = ref_elevation[35:38] |
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| 222 | newz[5:7] = ref_elevation[42:44] |
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| 223 | newz[7] = ref_elevation[45] |
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| 224 | newz[8] = ref_elevation[47] |
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| 225 | newz[9:11] = ref_elevation[52:54] |
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| 226 | newz[11:14] = ref_elevation[55:58] |
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| 227 | newz[14:16] = ref_elevation[62:64] |
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| 228 | newz[16:19] = ref_elevation[65:68] |
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| 229 | |
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| 230 | |
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| 231 | ref_elevation = newz |
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| 232 | ref_points = [] |
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| 233 | new_ref_points = [] |
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| 234 | x0 = 2002 |
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| 235 | y = 3007 |
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| 236 | yvec = range(4) |
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| 237 | xvec = range(6) |
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| 238 | for i in range(4): |
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| 239 | y = y - 1 |
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| 240 | ynew = y - 3003.0 |
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| 241 | for j in range(6): |
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| 242 | x = x0 + xvec[j] |
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| 243 | xnew = x - 2002.0 |
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| 244 | if j <> 2 and (i<>1 or j<>4): |
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| 245 | ref_points.append([x,y]) |
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| 246 | new_ref_points.append ([xnew,ynew]) |
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| 247 | |
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| 248 | |
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| 249 | assert num.allclose(points, new_ref_points) |
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| 250 | assert num.allclose(elevation, ref_elevation) |
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| 251 | |
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| 252 | #Cleanup |
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| 253 | fid.close() |
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| 254 | |
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| 255 | |
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| 256 | os.remove(root + '.pts') |
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| 257 | os.remove(root + '.dem') |
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| 258 | os.remove(root + '.asc') |
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| 259 | os.remove(root + '.prj') |
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| 260 | |
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| 261 | |
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| 262 | def test_dem2pts_bounding_box_removeNullvalues_v3(self): |
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| 263 | """Test conversion from dem in ascii format to native NetCDF format |
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| 264 | Check missing values on clipping boundary |
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| 265 | """ |
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| 266 | |
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| 267 | import time, os |
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| 268 | from Scientific.IO.NetCDF import NetCDFFile |
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| 269 | |
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| 270 | #Write test asc file |
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| 271 | root = 'demtest' |
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| 272 | |
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| 273 | filename = root+'.asc' |
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| 274 | fid = open(filename, 'w') |
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| 275 | fid.write("""ncols 10 |
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| 276 | nrows 10 |
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| 277 | xllcorner 2000 |
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| 278 | yllcorner 3000 |
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| 279 | cellsize 1 |
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| 280 | NODATA_value -9999 |
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| 281 | """) |
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| 282 | #Create linear function |
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| 283 | ref_points = [] |
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| 284 | ref_elevation = [] |
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| 285 | x0 = 2000 |
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| 286 | y = 3010 |
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| 287 | yvec = range(10) |
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| 288 | xvec = range(10) |
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| 289 | #z = range(100) |
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| 290 | z = num.zeros(100, num.int) #array default# |
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| 291 | NODATA_value = -9999 |
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| 292 | count = -1 |
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| 293 | for i in range(10): |
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| 294 | y = y - 1 |
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| 295 | for j in range(10): |
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| 296 | x = x0 + xvec[j] |
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| 297 | ref_points.append ([x,y]) |
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| 298 | count += 1 |
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| 299 | z[count] = (4*i - 3*j)%13 |
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| 300 | if j == 4: z[count] = NODATA_value #column inside clipping region |
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| 301 | if j == 8: z[count] = NODATA_value #column outside clipping region |
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| 302 | if i == 6: z[count] = NODATA_value #row on clipping boundary |
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| 303 | if i == 4 and j == 6: z[count] = NODATA_value #arbitrary point inside clipping region |
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| 304 | ref_elevation.append( z[count] ) |
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| 305 | fid.write('%f ' %z[count]) |
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| 306 | fid.write('\n') |
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| 307 | |
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| 308 | fid.close() |
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| 309 | |
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| 310 | #print 'sending elev', ref_elevation |
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| 311 | |
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| 312 | #Write prj file with metadata |
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| 313 | metafilename = root+'.prj' |
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| 314 | fid = open(metafilename, 'w') |
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| 315 | |
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| 316 | |
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| 317 | fid.write("""Projection UTM |
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| 318 | Zone 56 |
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| 319 | Datum WGS84 |
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| 320 | Zunits NO |
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| 321 | Units METERS |
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| 322 | Spheroid WGS84 |
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| 323 | Xshift 0.0000000000 |
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| 324 | Yshift 10000000.0000000000 |
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| 325 | Parameters |
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| 326 | """) |
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| 327 | fid.close() |
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| 328 | |
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| 329 | #Convert to NetCDF pts |
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[7814] | 330 | asc2dem(filename) |
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| 331 | dem2pts(root+'.dem', easting_min=2002.0, easting_max=2007.0, |
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[7742] | 332 | northing_min=3003.0, northing_max=3006.0) |
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| 333 | |
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| 334 | #Check contents |
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| 335 | #Get NetCDF |
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| 336 | fid = NetCDFFile(root+'.pts', netcdf_mode_r) |
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| 337 | |
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| 338 | # Get the variables |
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| 339 | #print fid.variables.keys() |
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| 340 | points = fid.variables['points'] |
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| 341 | elevation = fid.variables['elevation'] |
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| 342 | |
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| 343 | #Check values |
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| 344 | assert fid.xllcorner[0] == 2002.0 |
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| 345 | assert fid.yllcorner[0] == 3003.0 |
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| 346 | |
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| 347 | #create new reference points |
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| 348 | newz = num.zeros(14, num.int) #array default# |
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| 349 | newz[0:2] = ref_elevation[32:34] |
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| 350 | newz[2:5] = ref_elevation[35:38] |
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| 351 | newz[5:7] = ref_elevation[42:44] |
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| 352 | newz[7] = ref_elevation[45] |
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| 353 | newz[8] = ref_elevation[47] |
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| 354 | newz[9:11] = ref_elevation[52:54] |
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| 355 | newz[11:14] = ref_elevation[55:58] |
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| 356 | |
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| 357 | |
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| 358 | |
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| 359 | ref_elevation = newz |
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| 360 | ref_points = [] |
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| 361 | new_ref_points = [] |
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| 362 | x0 = 2002 |
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| 363 | y = 3007 |
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| 364 | yvec = range(4) |
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| 365 | xvec = range(6) |
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| 366 | for i in range(4): |
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| 367 | y = y - 1 |
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| 368 | ynew = y - 3003.0 |
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| 369 | for j in range(6): |
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| 370 | x = x0 + xvec[j] |
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| 371 | xnew = x - 2002.0 |
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| 372 | if j <> 2 and (i<>1 or j<>4) and i<>3: |
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| 373 | ref_points.append([x,y]) |
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| 374 | new_ref_points.append ([xnew,ynew]) |
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| 375 | |
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| 376 | |
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| 377 | #print points[:],points[:].shape |
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| 378 | #print new_ref_points, len(new_ref_points) |
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| 379 | |
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| 380 | assert num.allclose(elevation, ref_elevation) |
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| 381 | assert num.allclose(points, new_ref_points) |
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| 382 | |
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| 383 | |
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| 384 | #Cleanup |
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| 385 | fid.close() |
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| 386 | |
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| 387 | |
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| 388 | os.remove(root + '.pts') |
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| 389 | os.remove(root + '.dem') |
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| 390 | os.remove(root + '.asc') |
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| 391 | os.remove(root + '.prj') |
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| 392 | |
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| 393 | |
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| 394 | #------------------------------------------------------------- |
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| 395 | |
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| 396 | if __name__ == "__main__": |
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| 397 | suite = unittest.makeSuite(Test_Dem2Pts,'test') |
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| 398 | runner = unittest.TextTestRunner() |
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| 399 | runner.run(suite) |
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