source: inundation/ga/storm_surge/pmesh/create_gong.py @ 1599

Last change on this file since 1599 was 1086, checked in by duncan, 20 years ago

4 regions

File size: 3.4 KB
Line 
1
2import os, sys
3sys.path.append('..')
4
5from mesh import *
6from coordinate_transforms.geo_reference import Geo_reference
7
8#-------------------------------------------------------------
9if __name__ == "__main__":
10
11
12    bellambi_northing = 6195000.0
13    north_beach_northing = 6183000.0
14    north_beach_easting = 308500
15    border = 12000.0
16    west = 301000.0 # From the map
17    inner_east = 310000.0 # From the map
18    inner_west_south = 303000.0 # From the map
19    inner_west_north = 307000.0  # From the map
20    east = 328421.0
21    sea_boundary = (east+inner_east)/2
22    inner_center_easting =  ( inner_east +inner_west_north)/2
23    inner_center_northing = (bellambi_northing + north_beach_northing)/2
24
25    # from 100m dem
26    geo = Geo_reference(xllcorner = inner_center_easting,
27                        yllcorner = inner_center_northing,
28                        zone = 56)
29    print "***********************"
30    print "geo ref", geo
31    print "***********************"
32   
33    m = Mesh(geo_reference=geo)
34   
35    dict = {}
36    dict['points'] = [[west, north_beach_northing - border],  #sw
37                         [west, bellambi_northing + border],  #nw
38                         [sea_boundary,
39                          bellambi_northing + border],  #n_sea_boundary
40                         [east, bellambi_northing + border], #ne
41                         [east, north_beach_northing - border],    #se
42                         [sea_boundary,
43                          north_beach_northing - border]    #s_sea_boundary
44                         ]
45    dict['segments'] = [[0,1],[1,2],[2,3],
46                           [3,4],[4,5],[5,0], # the outer boarder
47                           [2,5]   # the sea_boundary line
48                           ]
49   
50    m.addVertsSegs(dict)
51
52    dict = {}
53    dict['points'] = [
54                         [inner_west_south,north_beach_northing], #sw
55                         [inner_west_north,bellambi_northing],   #nw
56                         [inner_east,bellambi_northing], #ne
57                         [inner_east,north_beach_northing] #se
58                         ]
59    dict['segments'] = [[0,1],[1,2],[2,3],[3,0]] # the inner boarder
60    m.addVertsSegs(dict)
61
62    #Even more inner points
63    flagstaff_x = 308000
64    flagstaff_y = 6189000
65    west_x = 305000
66    west_y = 6185000
67   
68    north_beach_northing = 6183000.0
69   
70    dict = {}
71    dict['points'] = [
72                         [flagstaff_x,flagstaff_y], #n
73                         [west_x,west_y],   #w
74                         [north_beach_easting,north_beach_northing], #s
75                         ]
76    dict['segments'] = [[0,1],[1,2],[2,0]] # the inner boarder
77    m.addVertsSegs(dict)
78   
79    factor = 1000 #low res 10000, high res 1000
80    low = m.addRegionEN(east-0.5, bellambi_northing + border-0.5)
81    low.setMaxArea(100*factor)
82   
83    medium = m.addRegionEN(sea_boundary-0.5, bellambi_northing + border-0.5)
84    medium.setMaxArea(10*factor)
85   
86    high = m.addRegionEN(inner_east-0.5,bellambi_northing-0.5)
87    high.setMaxArea(5*factor) #doing 0.5, fac = 1000 gives degenerate error
88   
89    center = m.addRegionEN(flagstaff_x,flagstaff_y-0.5)
90    center.setMaxArea(0.05*factor) #doing 0.5, fac = 1000 gives degenerate error
91    #m.generateMesh()
92    m.generateMesh("pzq28.0za1000000a") 
93   
94    m.export_mesh_file("wollongong_4regions.msh")
95    #m.export_mesh_file("wollongong_highres_a28.tsh")
96   
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