[3567] | 1 | #!/usr/bin/env python3 |
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| 2 | # -*- coding: utf-8 -*- |
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| 3 | #--------------------------------------------------------------------------------# |
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| 4 | # This file is part of the PALM model system. |
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| 5 | # |
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| 6 | # PALM is free software: you can redistribute it and/or modify it under the terms |
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| 7 | # of the GNU General Public License as published by the Free Software Foundation, |
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| 8 | # either version 3 of the License, or (at your option) any later version. |
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| 9 | # |
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| 10 | # PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | # A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | # |
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| 14 | # You should have received a copy of the GNU General Public License along with |
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| 15 | # PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | # |
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| 17 | # Copyright 1997-2018 Leibniz Universitaet Hannover |
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| 18 | #--------------------------------------------------------------------------------# |
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| 19 | # |
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| 20 | # Current revisions: |
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| 21 | # ----------------- |
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| 22 | # |
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| 23 | # |
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| 24 | # Former revisions: |
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| 25 | # ----------------- |
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| 26 | # $Id: palm_csd_netcdf_interface.py 3567 2018-11-27 13:59:21Z maronga $ |
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| 27 | # Initial revisions |
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| 28 | # |
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| 29 | # |
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| 30 | # |
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| 31 | # |
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| 32 | # |
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| 33 | # Description: |
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| 34 | # ------------ |
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| 35 | # NetCDF interface routines for palm_csd |
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| 36 | # |
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| 37 | # @Author Bjoern Maronga (maronga@muk.uni-hannover.de) |
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| 38 | # |
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| 39 | #------------------------------------------------------------------------------# |
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| 40 | |
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| 41 | from netCDF4 import Dataset |
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| 42 | |
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| 43 | def nc_read_from_file_2d(filename, varname, x0, x1, y0, y1): |
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| 44 | |
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| 45 | |
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| 46 | import numpy as np |
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| 47 | import sys |
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| 48 | |
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| 49 | try: |
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| 50 | f = open(filename) |
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| 51 | f.close() |
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| 52 | # print("Load: " + filename + ".") |
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| 53 | except FileNotFoundError: |
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| 54 | print("Error: " + filename + ". No such file. Aborting...") |
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| 55 | sys.exit(1) |
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| 56 | |
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| 57 | nc_file = Dataset(filename, "r+", format="NETCDF4") |
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| 58 | tmp_array = np.array(nc_file.variables[varname][y0:y1+1,x0:x1+1] , dtype=type(nc_file.variables[varname])) |
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| 59 | |
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| 60 | return tmp_array |
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| 61 | |
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| 62 | def nc_read_from_file_2d_all(filename, varname): |
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| 63 | |
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| 64 | |
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| 65 | import numpy as np |
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| 66 | import sys |
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| 67 | |
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| 68 | try: |
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| 69 | f = open(filename) |
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| 70 | f.close() |
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| 71 | # print("Load: " + filename + ".") |
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| 72 | except FileNotFoundError: |
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| 73 | print("Error: " + filename + ". No such file. Aborting...") |
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| 74 | sys.exit(1) |
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| 75 | |
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| 76 | nc_file = Dataset(filename, "r+", format="NETCDF4") |
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| 77 | tmp_array = np.array(nc_file.variables[varname][:][:], dtype=type(nc_file.variables[varname])) |
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| 78 | |
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| 79 | return tmp_array |
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| 80 | |
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| 81 | def nc_read_from_file_1d(filename, varname, x0, x1): |
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| 82 | |
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| 83 | import numpy as np |
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| 84 | import sys |
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| 85 | |
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| 86 | try: |
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| 87 | f = open(filename) |
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| 88 | f.close() |
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| 89 | #print("Load: " + filename + ".") |
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| 90 | except FileNotFoundError: |
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| 91 | print("Error: " + filename + ". No such file. Aborting...") |
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| 92 | sys.exit(1) |
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| 93 | |
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| 94 | nc_file = Dataset(filename, "r+", format="NETCDF4") |
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| 95 | tmp_array = np.array(nc_file.variables[varname][x0:x1+1] , dtype=type(nc_file.variables[varname])) |
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| 96 | |
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| 97 | return tmp_array |
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| 98 | |
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| 99 | |
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| 100 | def nc_create_file(filename): |
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| 101 | |
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| 102 | import datetime |
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| 103 | |
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| 104 | try: |
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| 105 | f = Dataset(filename, "w", format="NETCDF4") |
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| 106 | f.close() |
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| 107 | print("Created: " + filename + ".") |
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| 108 | except FileNotFoundError: |
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| 109 | print("Error. Could not create file: " + filename + ". Aborting...") |
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| 110 | sys.exit(1) |
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| 111 | |
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| 112 | return 0 |
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| 113 | |
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| 114 | |
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| 115 | |
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| 116 | def nc_write_global_attributes(filename,origin_x,origin_y,origin_lat,origin_lon,origin_time, global_acronym,global_angle, |
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| 117 | global_author,global_campaign,global_comment,global_contact,global_data_content, |
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| 118 | global_dependencies,global_institution,global_keywords,global_location,global_palm_version, |
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| 119 | global_references,global_site,global_source,global_version): |
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| 120 | |
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| 121 | import datetime |
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| 122 | import os |
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| 123 | |
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| 124 | print("Writing global attributes to file...") |
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| 125 | |
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| 126 | f = Dataset(filename, "a", format="NETCDF4") |
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| 127 | |
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| 128 | f.setncattr('Conventions',"CF-1.7") |
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| 129 | |
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| 130 | f.origin_x = origin_x |
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| 131 | f.origin_y = origin_y |
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| 132 | f.origin_time = origin_time |
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| 133 | f.origin_lat = origin_lat |
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| 134 | f.origin_lon = origin_lon |
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| 135 | |
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| 136 | f.acronym = global_acronym |
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| 137 | f.rotation_angle = global_angle |
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| 138 | f.author = global_author |
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| 139 | f.campaign = global_campaign |
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| 140 | f.comment = global_comment |
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| 141 | f.contact = global_contact |
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| 142 | f.data_content = global_data_content |
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| 143 | f.dependencies = global_dependencies |
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| 144 | f.institution = global_institution |
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| 145 | f.keywords = global_keywords |
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| 146 | f.location = global_location |
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| 147 | f.palm_version = global_palm_version |
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| 148 | f.references = global_references |
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| 149 | f.site = global_site |
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| 150 | f.source = global_source |
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| 151 | f.version = global_version |
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| 152 | |
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| 153 | |
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| 154 | f.close() |
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| 155 | |
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| 156 | return 0 |
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| 157 | |
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| 158 | |
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| 159 | def nc_write_dimension(filename,varname,array,datatype): |
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| 160 | |
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| 161 | try: |
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| 162 | f = Dataset(filename, "a", format="NETCDF4") |
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| 163 | #print("Opened: " + filename + ".") |
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| 164 | except FileNotFoundError: |
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| 165 | print("Error. Could not open file: " + filename + ". Aborting...") |
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| 166 | sys.exit(1) |
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| 167 | |
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| 168 | print("Writing dimension " + varname + " to file...") |
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| 169 | |
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| 170 | f.createDimension(varname,len(array)) |
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| 171 | temp = f.createVariable(varname,datatype,varname) |
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| 172 | temp[:] = array |
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| 173 | |
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| 174 | f.close() |
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| 175 | |
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| 176 | return 0 |
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| 177 | |
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| 178 | def nc_write_to_file_2d(filename,varname,array,datatype,dimname1,dimname2,fillvalue): |
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| 179 | |
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| 180 | try: |
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| 181 | f = Dataset(filename, "a", format="NETCDF4") |
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| 182 | #print("Opened: " + filename + ".") |
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| 183 | except FileNotFoundError: |
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| 184 | print("Error. Could not open file: " + filename + ". Aborting...") |
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| 185 | sys.exit(1) |
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| 186 | |
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| 187 | print("Writing array " + varname + " to file...") |
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| 188 | |
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| 189 | temp = f.createVariable(varname,datatype,(dimname1,dimname2),fill_value=fillvalue) |
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| 190 | temp[:] = array |
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| 191 | |
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| 192 | f.close() |
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| 193 | |
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| 194 | return 0 |
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| 195 | |
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| 196 | def nc_overwrite_to_file_2d(filename,varname,array): |
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| 197 | |
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| 198 | try: |
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| 199 | f = Dataset(filename, "a", format="NETCDF4") |
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| 200 | #print("Opened: " + filename + ".") |
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| 201 | except FileNotFoundError: |
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| 202 | print("Error. Could not open file: " + filename + ". Aborting...") |
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| 203 | sys.exit(1) |
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| 204 | |
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| 205 | print("Writing array " + varname + " to file...") |
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| 206 | |
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| 207 | temp = f.variables[varname] |
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| 208 | temp[:,:] = array |
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| 209 | |
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| 210 | f.close() |
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| 211 | |
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| 212 | return 0 |
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| 213 | |
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| 214 | def nc_write_to_file_3d(filename,varname,array,datatype,dimname1,dimname2,dimname3,fillvalue): |
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| 215 | |
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| 216 | try: |
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| 217 | f = Dataset(filename, "a", format="NETCDF4") |
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| 218 | #print("Opened: " + filename + ".") |
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| 219 | except FileNotFoundError: |
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| 220 | print("Error. Could not open file: " + filename + ". Aborting...") |
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| 221 | sys.exit(1) |
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| 222 | |
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| 223 | print("Writing array " + varname + " to file...") |
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| 224 | |
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| 225 | temp = f.createVariable(varname,datatype,(dimname1,dimname2,dimname3),fill_value=fillvalue) |
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| 226 | temp[:,:,:] = array |
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| 227 | |
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| 228 | f.close() |
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| 229 | |
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| 230 | return 0 |
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| 231 | |
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| 232 | |
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| 233 | def nc_write_attribute(filename,variable,attribute,value): |
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| 234 | |
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| 235 | f = Dataset(filename, "a", format="NETCDF4") |
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| 236 | |
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| 237 | var = f.variables[variable] |
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| 238 | var.setncattr(attribute,value) |
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| 239 | |
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| 240 | f.close() |
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| 241 | |
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| 242 | return 0 |
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| 243 | |
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| 244 | def nc_write_crs(filename): |
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| 245 | |
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| 246 | try: |
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| 247 | f = Dataset(filename, "a", format="NETCDF4") |
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| 248 | #print("Opened: " + filename + ".") |
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| 249 | except FileNotFoundError: |
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| 250 | print("Error. Could not open file: " + filename + ". Aborting...") |
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| 251 | sys.exit(1) |
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| 252 | |
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| 253 | print("Writing crs to file...") |
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| 254 | |
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| 255 | temp = f.createVariable("crs","i") |
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| 256 | |
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| 257 | temp.long_name = "coordinate reference system" |
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| 258 | temp.grid_mapping_name = "transverse_mercator" |
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| 259 | temp.semi_major_axis = 6378137.0 |
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| 260 | temp.inverse_flattening = 298.257222101 |
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| 261 | temp.longitude_of_prime_meridian = 0.0 |
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| 262 | temp.longitude_of_central_meridian = 9.0 |
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| 263 | temp.scale_factor_at_central_meridian = 0.9996 |
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| 264 | temp.latitude_of_projection_origin = 0.0 |
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| 265 | temp.false_easting = 50000.0 |
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| 266 | temp.false_northing = 0.0 |
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| 267 | temp.units = "m" |
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| 268 | temp.epsg_code = "EPSG:25833" |
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| 269 | |
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| 270 | f.close() |
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| 271 | |
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| 272 | return 0 |
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