source: anuga_work/development/cocos/find_alpha_cocos.py @ 4991

from anuga.geospatial_data.geospatial_data import *
from os import sep, environ, getenv, getcwd,umask
from anuga.pmesh.mesh_interface import create_mesh_from_regions
from anuga.shallow_water import Domain
from anuga.shallow_water import Reflective_boundary
from anuga.shallow_water.data_manager import export_grid
from anuga.shallow_water.data_manager import start_screen_catcher, copy_code_files
from math import sqrt
from time import localtime, strftime, gmtime
from anuga.utilities.polygon import number_mesh_triangles


umask(002)
time = strftime('%Y%m%d_%H%M%S',gmtime())

home = getenv('INUNDATIONHOME') + sep +'data'+sep
#output_dir = home + 'anuga_validation'+sep+'cocos'+sep+'anuga'+sep+'outputs'+sep+time+sep
output_dir = '/d/ehn/4/ehn/tsunami/data/bathymetry/Cocos/bathymetry'+sep+time+sep

#copy_code_files(output_dir,__file__)

#start_screen_catcher(output_dir,verbose=True)
print'testing'

data_dir='/d/ehn/4/ehn/tsunami/data/bathymetry/Cocos/bathymetry/'
data_dir_name = data_dir + 'new_edited_cocos_final'

data_dir_name_small=data_dir_name+'_small'
data_dir_name_smaller=data_dir_name+'_smaller'
data_dir_name_small_clip=data_dir_name+'_small_clip'
data_dir_name_clip=data_dir_name+'_clip'
#print'create Geospatial data2 objects from coast'
#G = Geospatial_data(file_name = data_dir_name + '.txt')
#print'start split'
#G_small, G_other = G.split(factor=0.1, verbose=True)
#print'start export'
#G_small.export_points_file(data_dir_name_smaller + '.txt')

mesh_file=data_dir+'cocos_alpha.msh'
sww_file='test_final'

poly1 = [[439850.00,8565314.80],[439850.00, 8783110.00],
        [156494.00,8783110.00],[156494.00,8565314.80]]
#        68450m2
grid1_res=370.4


poly2 = [[294652.80,8625096.92],[294652.80,8713178.04],
         [224424.96,8713178.04],[224424.96,8625096.92]]
#        2738m2
grid2_res=74.08

poly3 = [[274295.91,8657346.91],[274295.91,8665112.56],
         [266767.44,8665112.56],[266767.44,8657346.91]]
#        110m2
grid3_res=14.82
        
poly4 = [[270900.24,8659120.05],[270900.24,8660170.84],
         [269701.45,8660170.84],[269701.45,8659120.05]]
#        4.3m2
grid4_res=2.96

res = 100
#G = Geospatial_data(file_name = data_dir_name + '.txt')
#G1=G.clip(poly1)
#G1.export_points_file(data_dir_name_clip + '.txt')


interior_polys = [[poly2,(grid2_res**2/2)*res],[poly3,(grid3_res**2/2)*res],[poly4,(grid4_res**2/2)*res]]


trigs_min = number_mesh_triangles(interior_polys, poly1, (grid1_res**2/2)*res)

create_mesh_from_regions(poly1,
                         boundary_tags={'side': [0,1,2,3]},
                         maximum_triangle_area=(grid1_res**2/2)*res,
                         interior_regions=interior_polys,
                         filename=mesh_file,
                         use_cache=True,
                         verbose=True)
                         
                         
#value, alpha = find_optimal_smoothing_parameter(data_file=data_dir_name_clip + '.txt', 
value, alpha = find_optimal_smoothing_parameter(data_file=data_dir_name_small + '.txt', 
#                                             alpha_list=[0.0001,0.001,0.01,0.1,1.0],
                                             alpha_list=[0.01,0.05,0.1,0.5,1.0],
 #                                            alpha_list=[0.1],
                                             boundary_poly=poly1,
                                             mesh_file=mesh_file,
                                             plot_name=None,
                                             split_factor=0.001,
                                             cache=True,
                                             verbose=True)