source: anuga_work/production/australia_ph2/strahan/Arc_asc2raster_GDA94z50.py @ 6924

# ---------------------------------------------------------------------------
# This python script is an ArcGIS script that can only be run on a computer
# with and ArcGIS licence and version 2.4.1 python.
# This script is designed to read in .asc files and deliever rasters with
# projection (GDA94z50) held in a file geodatabase (called raster)
# written by Kristy Van Putten and Ross Wilson
# ---------------------------------------------------------------------------

# Import system modules
import sys, string, os, arcgisscripting, glob, os.path

# Create the Geoprocessor object
gp = arcgisscripting.create()

# Check out any necessary licenses
gp.CheckOutExtension("spatial")

# Load required toolboxes...
gp.AddToolbox("C:/Program Files/ArcGIS/ArcToolbox/Toolboxes/Spatial Analyst Tools.tbx")
gp.AddToolbox("C:/Program Files/ArcGIS/ArcToolbox/Toolboxes/Conversion Tools.tbx")
gp.AddToolbox("C:/Program Files/ArcGIS/ArcToolbox/Toolboxes/Data Management Tools.tbx")
gp.overwriteoutput = 1

scenario_dir = "\\\\nas2\\gemd\\georisk_models\\inundation\\data\\australia_ph2\\strahan\\"
output_dir="anuga\\outputs\\"

time_dir1 = '20090408_152513_run_final_0_58337_2044_Tb__mhingee'
time_dir2 = '20090408_163848_run_final_0_64214_2044_Tb__mhingee'
time_dir3 = '20090408_175114_run_final_0_68779_2044_Tb__mhingee'

time_dirs = [time_dir1, time_dir2, time_dir3]
events = [[time_dir1,0.593696],[time_dir2,0.566183],[time_dir3,0.561357]]

for event in events:
##for time_dir in time_dirs:
    time_dir = event[0]
    max_wave = event[1]
    print time_dir
    print max_wave
    # Local variables...
    folder = scenario_dir + output_dir +  time_dir +'\\'
    raster_gbd = folder + 'raster.gdb'
##    land = scenario_dir + "map_work\\\port_hedland.gdb\\outlines\\initial_condition"
##    ocean = scenario_dir + "map_work\\\port_hedland.gdb\\outlines\\initial_conditions_ocean"

    print 'Process: Create File GDB'
    gp.CreateFileGDB_management(folder, "raster")

    gp.Workspace = raster_gbd

    print gp.Workspace
    
    #replication dictionary
    replicate = (('strahan', ''),('_', ''),('max','_M'),
                 ('CBD', 'CDB'),('All',''),
                 ('depth','_depth'),('speed', '_speed'),
                 ('elevation', '_ele_'), ('stage','_stage'))

    generate_filename = []
    input_ascii = glob.glob(folder + '*.asc')

    for infile in input_ascii:
        output_DEM = os.path.basename(infile)[:-4]
        for (key, rep) in replicate:
            output_DEM = output_DEM.replace(key,rep)
        output_DEM = output_DEM[:10]
        if output_DEM in generate_filename:
            print 'Output_DEM filename (%s) already in use' % output_DEM
            sys.exit(10)
        generate_filename.append(output_DEM)

        print 'Output DEM ',output_DEM
        
        print 'Process: ASCII to Raster'
        gp.ASCIIToRaster_conversion(infile, output_DEM, "FLOAT")

        print 'Process: Define Projection' 
        gp.DefineProjection_management(output_DEM, "PROJCS['GDA_1994_MGA_Zone_55',GEOGCS['GCS_GDA_1994',DATUM['D_GDA_1994',SPHEROID['GRS_1980',6378137.0,298.257222101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]]"
                                                   ",PROJECTION['Transverse_Mercator'],PARAMETER['False_Easting',500000.0],PARAMETER['False_Northing',10000000.0],PARAMETER['Central_Meridian',147.0],PARAMETER['Scale_Factor',0.9996]"
                                                   ",PARAMETER['Latitude_Of_Origin',0.0],UNIT['Meter',1.0]]")
##        output_extract = output_DEM + 'E'
##        print 'Output Extract ',output_extract
##        print 'Process: Extract by Mask'
##        gp.ExtractByMask_sa(output_DEM, land, output_extract)
        # do this bit only if there are only stage asc files
        div_file = output_DEM.replace('stage','div_stage')
        print 'divide', output_DEM,' by', max_wave,' and call',div_file
        gp.Divide_sa(output_DEM,max_wave,div_file)