1 | """ |
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2 | A file conversion. |
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3 | |
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4 | Duncan Gray, GA - 2007 |
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5 | |
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6 | """ |
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7 | |
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8 | |
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9 | #---------------------------------------------------------------------------- |
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10 | # Import necessary modules |
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11 | #---------------------------------------------------------------------------- |
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12 | |
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13 | from Scientific.IO.NetCDF import NetCDFFile |
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14 | from Numeric import zeros, Float |
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15 | |
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16 | from anuga.utilities.numerical_tools import ensure_numeric |
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17 | from anuga.utilities.interp import interp |
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18 | |
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19 | |
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20 | def csv2tms(filename, offshore_bed_elevation): |
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21 | """ |
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22 | Convert Hinwood boundary file to NetCDF tms file. |
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23 | the filename is the name of the output tms file, eg 'hi.tsm'. |
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24 | There must be an equivalent .csv file, eg 'hi.csv'. |
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25 | |
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26 | """ |
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27 | print 'Creating', filename |
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28 | |
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29 | # Read the ascii (.csv) version of this file |
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30 | fid = open(filename[:-4] + '.csv') |
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31 | |
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32 | #Skip first line |
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33 | line = fid.readline() |
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34 | |
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35 | # Read remaining lines |
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36 | lines = fid.readlines() |
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37 | fid.close() |
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38 | |
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39 | N = len(lines) |
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40 | T = zeros(N, Float) #Time |
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41 | Q = zeros(N, Float) #Stage |
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42 | X = zeros(N, Float) #XMomentum |
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43 | Y = zeros(N, Float) #YMomentum |
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44 | |
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45 | for i, line in enumerate(lines): |
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46 | fields = line.split(',') |
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47 | |
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48 | T[i] = float(fields[0]) |
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49 | Q[i] = float(fields[1]) |
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50 | depth = Q[i] - offshore_bed_elevation |
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51 | X[i] = float(fields[2]) * depth |
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52 | Y[i] = float(fields[3]) * depth |
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53 | |
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54 | # Create tms NetCDF file |
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55 | fid = NetCDFFile(filename, 'w') |
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56 | fid.institution = 'Geoscience Australia' |
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57 | fid.description = 'Input wave for Benchmark 2' |
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58 | fid.starttime = 0.0 |
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59 | fid.createDimension('number_of_timesteps', len(T)) |
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60 | fid.createVariable('time', Float, ('number_of_timesteps',)) |
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61 | fid.variables['time'][:] = T |
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62 | |
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63 | fid.createVariable('stage', Float, ('number_of_timesteps',)) |
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64 | fid.variables['stage'][:] = Q[:] |
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65 | |
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66 | fid.createVariable('xmomentum', Float, ('number_of_timesteps',)) |
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67 | fid.variables['xmomentum'][:] = X[:] |
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68 | |
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69 | fid.createVariable('ymomentum', Float, ('number_of_timesteps',)) |
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70 | fid.variables['ymomentum'][:] = Y[:] |
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71 | |
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72 | fid.close() |
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