1 | """ |
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2 | |
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3 | Script for running a breaking wave simulation of Jon Hinwoods wave tank. |
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4 | Note: this is based on the frinction_ua_flume_2006 structure. |
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5 | |
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6 | |
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7 | Duncan Gray, GA - 2007 |
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8 | |
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9 | |
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10 | |
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11 | """ |
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12 | |
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13 | |
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14 | #---------------------------------------------------------------------------- |
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15 | # Import necessary modules |
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16 | #---------------------------------------------------------------------------- |
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17 | |
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18 | # Standard modules |
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19 | import time |
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20 | from time import localtime, strftime |
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21 | import sys |
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22 | from shutil import copy |
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23 | from os import path, sep |
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24 | from os.path import dirname #, basename |
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25 | |
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26 | |
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27 | # Related major packages |
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28 | from anuga.shallow_water import Domain, Reflective_boundary, \ |
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29 | Dirichlet_boundary, Time_boundary, \ |
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30 | File_boundary, \ |
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31 | Transmissive_Momentum_Set_Stage_boundary |
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32 | from anuga.fit_interpolate.interpolate import interpolate_sww2csv |
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33 | from anuga.abstract_2d_finite_volumes.util import start_screen_catcher, \ |
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34 | copy_code_files, file_function |
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35 | from anuga.abstract_2d_finite_volumes.generic_boundary_conditions\ |
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36 | import File_boundary_time |
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37 | |
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38 | # Scenario specific imports |
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39 | import project # Definition of file names and polygons |
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40 | import create_mesh |
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41 | from prepare_time_boundary import prepare_time_boundary |
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42 | |
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43 | |
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44 | |
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45 | def elevation_function(x,y): |
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46 | from Numeric import zeros, size, Float |
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47 | |
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48 | xslope = create_mesh.xslope #4 ## Bit of a magic Number |
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49 | print "xslope",xslope |
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50 | z = zeros(size(x), Float) |
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51 | for i in range(len(x)): |
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52 | if x[i] < xslope: |
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53 | z[i] = 0.0 #WARNING: the code in prepare_time_boundary |
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54 | # that calc's momentum assumes this is 0.0 |
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55 | else: |
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56 | z[i] = (x[i]-xslope)*(1./16.) |
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57 | return z |
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58 | |
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59 | def main(friction=0.01, outputdir_name=None, is_trial_run=False): |
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60 | |
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61 | |
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62 | basename = 'zz' + str(friction) |
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63 | if is_trial_run is True: |
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64 | outputdir_name += '_test' |
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65 | yieldstep = 0.1 |
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66 | finaltime = 15. |
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67 | maximum_triangle_area=0.01 |
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68 | else: |
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69 | yieldstep = 0.02 |
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70 | finaltime = 15.1 |
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71 | maximum_triangle_area=0.0001 |
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72 | |
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73 | maximum_triangle_area=0.001 |
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74 | |
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75 | pro_instance = project.Project(['data','flumes','Hinwood_2008'], |
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76 | outputdir_name=outputdir_name) |
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77 | print "The output dir is", pro_instance.outputdir |
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78 | copy_code_files(pro_instance.outputdir,__file__, |
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79 | dirname(project.__file__) \ |
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80 | + sep + project.__name__+'.py') |
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81 | copy (pro_instance.codedir + 'run_dam.py', |
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82 | pro_instance.outputdir + 'run_dam.py') |
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83 | copy (pro_instance.codedir + 'create_mesh.py', |
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84 | pro_instance.outputdir + 'create_mesh.py') |
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85 | |
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86 | |
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87 | # Convert the boundary file, .csv to .tsm |
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88 | try: |
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89 | temp = open(pro_instance.boundary_file) |
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90 | temp.close() |
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91 | except IOError: |
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92 | prepare_time_boundary(pro_instance.boundary_file) |
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93 | |
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94 | mesh_filename = pro_instance.meshdir + basename + '.msh' |
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95 | |
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96 | #-------------------------------------------------------------------------- |
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97 | # Copy scripts to output directory and capture screen |
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98 | # output to file |
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99 | #-------------------------------------------------------------------------- |
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100 | |
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101 | # creates copy of code in output dir |
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102 | if is_trial_run is False: |
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103 | start_screen_catcher(pro_instance.outputdir, rank, pypar.size()) |
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104 | |
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105 | print 'USER: ', pro_instance.user |
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106 | #------------------------------------------------------------------------- |
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107 | # Create the triangular mesh |
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108 | #------------------------------------------------------------------------- |
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109 | |
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110 | # this creates the mesh |
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111 | #gate_position = 12.0 |
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112 | create_mesh.generate(mesh_filename, |
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113 | maximum_triangle_area=maximum_triangle_area) |
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114 | |
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115 | head,tail = path.split(mesh_filename) |
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116 | copy (mesh_filename, |
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117 | pro_instance.outputdir + tail ) |
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118 | #------------------------------------------------------------------------- |
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119 | # Setup computational domain |
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120 | #------------------------------------------------------------------------- |
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121 | domain = Domain(mesh_filename, use_cache = False, verbose = True) |
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122 | |
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123 | |
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124 | print 'Number of triangles = ', len(domain) |
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125 | print 'The extent is ', domain.get_extent() |
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126 | print domain.statistics() |
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127 | |
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128 | |
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129 | domain.set_name(basename) |
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130 | domain.set_datadir(pro_instance.outputdir) |
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131 | domain.set_quantities_to_be_stored(['stage', 'xmomentum', 'ymomentum']) |
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132 | domain.set_minimum_storable_height(0.001) |
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133 | #domain.set_store_vertices_uniquely(True) # for writting to sww |
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134 | |
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135 | #------------------------------------------------------------------------- |
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136 | # Setup initial conditions |
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137 | #------------------------------------------------------------------------- |
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138 | |
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139 | domain.set_quantity('stage', 0.4) |
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140 | domain.set_quantity('friction', friction) |
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141 | domain.set_quantity('elevation', elevation_function) |
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142 | |
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143 | |
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144 | print 'Available boundary tags', domain.get_boundary_tags() |
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145 | |
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146 | # Create boundary function from timeseries provided in file |
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147 | #function = file_function(project.boundary_file, domain, verbose=True) |
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148 | #Bts = Transmissive_Momentum_Set_Stage_boundary(domain, function) |
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149 | try: |
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150 | function = file_function(pro_instance.boundary_file, domain, |
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151 | verbose=True) |
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152 | except IOError: |
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153 | msg = 'Run prepare_time_boundary.py. File "%s" could not be opened.'\ |
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154 | %(pro_instance.boundary_file) |
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155 | raise msg |
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156 | |
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157 | Br = Reflective_boundary(domain) |
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158 | #Bd = Dirichlet_boundary([0.3,0,0]) |
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159 | Bts = Time_boundary(domain, function) |
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160 | domain.set_boundary( {'wall': Br, 'wave': Bts} ) |
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161 | |
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162 | #------------------------------------------------------------------------- |
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163 | # Evolve system through time |
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164 | #------------------------------------------------------------------------- |
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165 | t0 = time.time() |
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166 | |
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167 | for t in domain.evolve(yieldstep, finaltime): |
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168 | domain.write_time() |
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169 | print 'That took %.2f seconds' %(time.time()-t0) |
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170 | print 'finished' |
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171 | |
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172 | flume_y_middle = 0.225 |
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173 | points = [[2.8,flume_y_middle], #-1.8m from SWL |
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174 | [5.1,flume_y_middle], #0.5m from SWL |
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175 | [6.6,flume_y_middle], #2m from SWL |
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176 | [6.95,flume_y_middle], #2.35m from SWL |
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177 | [7.6,flume_y_middle], #3m from SWL |
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178 | [8.2,flume_y_middle], #3.5m from SWL |
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179 | [9.2,flume_y_middle] #4.5m from SWL |
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180 | ] |
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181 | |
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182 | |
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183 | #------------------------------------------------------------------------- |
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184 | # Calculate gauge info |
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185 | #------------------------------------------------------------------------- |
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186 | |
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187 | if True: |
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188 | interpolate_sww2csv(pro_instance.outputdir + basename +".sww", |
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189 | points, |
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190 | pro_instance.outputdir + "depth_manning_"+str(friction)+".csv", |
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191 | pro_instance.outputdir + "velocity_x.csv", |
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192 | pro_instance.outputdir + "velocity_y.csv") |
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193 | |
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194 | return pro_instance |
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195 | |
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196 | #------------------------------------------------------------- |
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197 | if __name__ == "__main__": |
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198 | main( is_trial_run = True, |
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199 | outputdir_name='Hinwood_low_stage_low_velocity_draft') |
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