import project, os
import sys

from anuga.shallow_water.data_manager import sww2dem
from anuga.abstract_2d_finite_volumes.util import Screen_Catcher
from os import sep

#time_dir = '20060928_073318' #alpha = 0.5
time_dir = '20060928_064732' #alpha = 0.01
#time_dir = '20060928_220905' #alpha = 1.0
directory = project.outputdir
name = directory + time_dir +sep + 'source'

print 'output dir:', name
#print 'Which variable do you want to export?'
#which_var = int(raw_input('Stage = 0, Absolute Momentum = 1, Depth = 2, Speed = 3  '  ))
which_var = 4
if which_var == 0:  # Stage
    outname = name + '_stage'
    quantityname = 'stage'

if which_var == 1:  # Absolute Momentum
    outname = name + '_momentum'
    quantityname = '(xmomentum**2 + ymomentum**2)**0.5'  #Absolute momentum

if which_var == 2:  # Depth
    outname = name + '_depth'
    quantityname = 'stage-elevation'  #Depth

if which_var == 3:  # Speed
    outname = name + '_speed'
    quantityname = '(xmomentum**2 + ymomentum**2)**0.5/(stage-elevation+1.e-30)'  #Speed

if which_var == 4:  # Elevation
    outname = name + '_elevation'
    quantityname = 'elevation'  #Elevation

print 'start sww2dem'
sww2dem(name, basename_out = outname,
            quantity = quantityname,
            cellsize = 100,      # would prefer this at 25
            # define region for viz purposes
            easting_min = project.e_min_area,
            easting_max = project.e_max_area,
            northing_min = project.n_min_area,
            northing_max = project.n_max_area,        
            reduction = max, #this is because we want max quantityname
            verbose = True,
            format = 'asc')