1 | """Run a tsunami inundation scenario for Busselton, WA, Australia. |
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2 | |
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3 | The scenario is defined by a triangular mesh created from project.polygon, the |
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4 | elevation data is compiled into a pts file through build_elevation.py and a |
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5 | simulated tsunami is generated through an sts file from build_boundary.py. |
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6 | |
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7 | Input: sts file (build_boundary.py for respective event) |
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8 | pts file (build_elevation.py) |
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9 | information from project file |
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10 | Outputs: sww file stored in project.output_run_time_dir |
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11 | The export_results_all.py and get_timeseries.py is reliant |
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12 | on the outputs of this script |
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13 | |
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14 | Ole Nielsen and Duncan Gray, GA - 2005, Jane Sexton, Nick Bartzis, GA - 2006 |
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15 | Ole Nielsen, Jane Sexton and Kristy Van Putten - 2008 |
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16 | """ |
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17 | |
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18 | #------------------------------------------------------------------------------ |
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19 | # Import necessary modules |
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20 | #------------------------------------------------------------------------------ |
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21 | |
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22 | # Standard modules |
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23 | import os |
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24 | import os.path |
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25 | import time |
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26 | from time import localtime, strftime, gmtime |
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27 | |
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28 | # Related major packages |
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29 | from Scientific.IO.NetCDF import NetCDFFile |
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30 | import Numeric as num |
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31 | |
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32 | from anuga.interface import create_domain_from_regions |
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33 | from anuga.interface import Transmissive_stage_zero_momentum_boundary |
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34 | from anuga.interface import Dirichlet_boundary |
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35 | from anuga.interface import Reflective_boundary |
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36 | from anuga.interface import Field_boundary |
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37 | from anuga.interface import create_sts_boundary |
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38 | from anuga.interface import csv2building_polygons |
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39 | from file_length import file_length |
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40 | |
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41 | from anuga.shallow_water.data_manager import start_screen_catcher |
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42 | from anuga.shallow_water.data_manager import copy_code_files |
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43 | from anuga.shallow_water.data_manager import urs2sts |
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44 | from anuga.utilities.polygon import read_polygon, Polygon_function |
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45 | |
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46 | # Application specific imports |
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47 | from setup_model import project |
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48 | import build_urs_boundary as bub |
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49 | |
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50 | #------------------------------------------------------------------------------- |
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51 | # Copy scripts to time stamped output directory and capture screen |
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52 | # output to file. Copy script must be before screen_catcher |
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53 | #------------------------------------------------------------------------------- |
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54 | |
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55 | copy_code_files(project.output_run, __file__, |
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56 | os.path.join(os.path.dirname(project.__file__), |
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57 | project.__name__+'.py')) |
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58 | start_screen_catcher(project.output_run, 0, 1) |
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59 | |
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60 | #------------------------------------------------------------------------------- |
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61 | # Create the computational domain based on overall clipping polygon with |
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62 | # a tagged boundary and interior regions defined in project.py along with |
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63 | # resolutions (maximal area of per triangle) for each polygon |
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64 | #------------------------------------------------------------------------------- |
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65 | |
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66 | print 'Create computational domain' |
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67 | |
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68 | # Create the STS file |
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69 | print 'project.mux_data_folder=%s' % project.mux_data_folder |
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70 | if not os.path.exists(project.event_sts + '.sts'): |
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71 | bub.build_urs_boundary(project.mux_input_filename, project.event_sts) |
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72 | |
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73 | # Read in boundary from ordered sts file |
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74 | event_sts = create_sts_boundary(project.event_sts) |
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75 | |
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76 | # Reading the landward defined points, this incorporates the original clipping |
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77 | # polygon minus the 100m contour |
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78 | landward_boundary = read_polygon(project.landward_boundary) |
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79 | |
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80 | # Combine sts polyline with landward points |
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81 | bounding_polygon_sts = event_sts + landward_boundary |
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82 | |
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83 | # Number of boundary segments |
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84 | num_ocean_segments = len(event_sts) - 1 |
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85 | # Number of landward_boundary points |
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86 | num_land_points = file_length(project.landward_boundary) |
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87 | |
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88 | # Boundary tags refer to project.landward_boundary |
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89 | # 4 points equals 5 segments start at N |
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90 | boundary_tags={'back': range(num_ocean_segments+1, |
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91 | num_ocean_segments+num_land_points), |
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92 | 'side': [num_ocean_segments, |
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93 | num_ocean_segments+num_land_points], |
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94 | 'ocean': range(num_ocean_segments)} |
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95 | |
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96 | # Build mesh and domain |
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97 | domain = create_domain_from_regions(bounding_polygon_sts, |
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98 | boundary_tags=boundary_tags, |
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99 | maximum_triangle_area=project.bounding_maxarea, |
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100 | interior_regions=project.interior_regions, |
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101 | mesh_filename=project.meshes, |
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102 | use_cache=True, |
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103 | verbose=True) |
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104 | print domain.statistics() |
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105 | |
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106 | domain.set_name(project.scenario_name) |
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107 | domain.set_datadir(project.output_run) |
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108 | domain.set_minimum_storable_height(0.01) # Don't store depth less than 1cm |
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109 | |
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110 | #------------------------------------------------------------------------------- |
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111 | # Setup initial conditions |
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112 | #------------------------------------------------------------------------------- |
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113 | |
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114 | print 'Setup initial conditions' |
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115 | |
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116 | # Set the initial stage in the offcoast region only |
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117 | if project.land_initial_conditions: |
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118 | IC = Polygon_function(project.land_initial_conditions, |
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119 | default=project.tide, |
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120 | geo_reference=domain.geo_reference) |
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121 | else: |
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122 | IC = 0 |
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123 | domain.set_quantity('stage', IC, use_cache=True, verbose=True) |
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124 | domain.set_quantity('friction', project.friction) |
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125 | domain.set_quantity('elevation', |
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126 | filename=project.combined_elevation+'.pts', |
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127 | use_cache=True, |
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128 | verbose=True, |
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129 | alpha=project.alpha) |
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130 | |
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131 | #------------------------------------------------------------------------------- |
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132 | # Setup boundary conditions |
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133 | #------------------------------------------------------------------------------- |
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134 | |
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135 | print 'Set boundary - available tags:', domain.get_boundary_tags() |
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136 | |
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137 | Br = Reflective_boundary(domain) |
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138 | Bt = Transmissive_stage_zero_momentum_boundary(domain) |
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139 | Bd = Dirichlet_boundary([project.tide, 0, 0]) |
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140 | Bf = Field_boundary(project.event_sts+'.sts', |
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141 | domain, mean_stage=project.tide, |
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142 | time_thinning=1, |
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143 | default_boundary=Dirichlet_boundary([0, 0, 0]), |
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144 | boundary_polygon=bounding_polygon_sts, |
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145 | use_cache=True, |
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146 | verbose=True) |
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147 | |
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148 | domain.set_boundary({'back': Br, |
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149 | 'side': Bd, |
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150 | 'ocean': Bf}) |
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151 | |
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152 | #------------------------------------------------------------------------------- |
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153 | # Evolve system through time |
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154 | #------------------------------------------------------------------------------- |
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155 | |
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156 | t0 = time.time() |
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157 | for t in domain.evolve(yieldstep=project.yieldstep, |
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158 | finaltime=project.finaltime, |
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159 | skip_initial_step=False): |
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160 | print domain.timestepping_statistics() |
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161 | print domain.boundary_statistics(tags='ocean') |
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162 | |
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163 | print 'Simulation took %.2f seconds' % (time.time()-t0) |
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