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1# http://pyrocko.org - GPLv3 

2# 

3# The Pyrocko Developers, 21st Century 

4# ---|P------/S----------~Lg---------- 

5 

6''' 

7Automap - create simple maps with GMT. 

8''' 

9 

10import sys 

11import logging 

12import numpy as num 

13from pyrocko import util, model, orthodrome as od, gmtpy 

14from pyrocko import moment_tensor as pmt 

15from pyrocko.plot import automap 

16 

17from optparse import OptionParser 

18 

19km = 1000. 

20logger = logging.getLogger('pyrocko.apps.automap') 

21 

22program_name = 'automap' 

23 

24usage = ''' 

25usage: %s [options] [--] <lat> <lon> <radius_km> <output.(pdf|png)> 

26 %s [--download-etopo1] [--download-srtmgl3] 

27'''.strip() % (program_name, program_name) 

28 

29description = '''Create a simple map with topography.''' 

30 

31 

32def latlon_arrays(locs): 

33 return num.array( 

34 [(x.effective_lat, x.effective_lon) for x in locs]).T 

35 

36 

37def main(args=None): 

38 ''' 

39 CLI entry point for Pyrocko's ``automap`` app. 

40 ''' 

41 if args is None: 

42 args = sys.argv[1:] 

43 

44 parser = OptionParser( 

45 usage=usage, 

46 description=description) 

47 

48 parser.add_option( 

49 '--width', 

50 dest='width', 

51 type='float', 

52 default=20.0, 

53 metavar='FLOAT', 

54 help='set width of output image [cm] (%default)') 

55 

56 parser.add_option( 

57 '--height', 

58 dest='height', 

59 type='float', 

60 default=15.0, 

61 metavar='FLOAT', 

62 help='set height of output image [cm] (%default)') 

63 

64 parser.add_option( 

65 '--topo-resolution-min', 

66 dest='topo_resolution_min', 

67 type='float', 

68 default=40.0, 

69 metavar='FLOAT', 

70 help='minimum resolution of topography [dpi] (%default)') 

71 

72 parser.add_option( 

73 '--topo-resolution-max', 

74 dest='topo_resolution_max', 

75 type='float', 

76 default=200.0, 

77 metavar='FLOAT', 

78 help='maximum resolution of topography [dpi] (%default)') 

79 

80 parser.add_option( 

81 '--no-grid', 

82 dest='show_grid', 

83 default=True, 

84 action='store_false', 

85 help="don't show grid lines") 

86 

87 parser.add_option( 

88 '--no-topo', 

89 dest='show_topo', 

90 default=True, 

91 action='store_false', 

92 help="don't show topography") 

93 

94 parser.add_option( 

95 '--no-cities', 

96 dest='show_cities', 

97 default=True, 

98 action='store_false', 

99 help="don't show cities") 

100 

101 parser.add_option( 

102 '--no-illuminate', 

103 dest='illuminate', 

104 default=True, 

105 action='store_false', 

106 help='deactivate artificial illumination of topography') 

107 

108 parser.add_option( 

109 '--illuminate-factor-land', 

110 dest='illuminate_factor_land', 

111 type='float', 

112 metavar='FLOAT', 

113 help='set factor for artificial illumination of land (0.5)') 

114 

115 parser.add_option( 

116 '--illuminate-factor-ocean', 

117 dest='illuminate_factor_ocean', 

118 type='float', 

119 metavar='FLOAT', 

120 help='set factor for artificial illumination of ocean (0.25)') 

121 

122 parser.add_option( 

123 '--theme', 

124 choices=['topo', 'soft'], 

125 default='topo', 

126 help='select color theme, available: topo, soft (topo)"') 

127 

128 parser.add_option( 

129 '--download-etopo1', 

130 dest='download_etopo1', 

131 action='store_true', 

132 help='download full ETOPO1 topography dataset') 

133 

134 parser.add_option( 

135 '--download-srtmgl3', 

136 dest='download_srtmgl3', 

137 action='store_true', 

138 help='download full SRTMGL3 topography dataset') 

139 

140 parser.add_option( 

141 '--make-decimated-topo', 

142 dest='make_decimated', 

143 action='store_true', 

144 help='pre-make all decimated topography datasets') 

145 

146 parser.add_option( 

147 '--stations', 

148 dest='stations_fn', 

149 metavar='FILENAME', 

150 help='load station coordinates from FILENAME') 

151 

152 parser.add_option( 

153 '--events', 

154 dest='events_fn', 

155 metavar='FILENAME', 

156 help='load event coordinates from FILENAME') 

157 

158 parser.add_option( 

159 '--debug', 

160 dest='debug', 

161 action='store_true', 

162 default=False, 

163 help='print debugging information to stderr') 

164 

165 (options, args) = parser.parse_args(args) 

166 

167 if options.debug: 

168 util.setup_logging(program_name, 'debug') 

169 else: 

170 util.setup_logging(program_name, 'info') 

171 

172 if options.download_etopo1: 

173 from pyrocko.dataset.topo import _etopo1 

174 _etopo1.download() 

175 

176 if options.download_srtmgl3: 

177 from pyrocko.dataset.topo import _srtmgl3 

178 _srtmgl3.download() 

179 

180 if options.make_decimated: 

181 import pyrocko.dataset.topo 

182 pyrocko.dataset.topo.make_all_missing_decimated() 

183 

184 if (options.download_etopo1 or options.download_srtmgl3 or 

185 options.make_decimated) and len(args) == 0: 

186 

187 sys.exit(0) 

188 

189 if options.theme == 'soft': 

190 color_kwargs = { 

191 'illuminate_factor_land': options.illuminate_factor_land or 0.2, 

192 'illuminate_factor_ocean': options.illuminate_factor_ocean or 0.15, 

193 'color_wet': (216, 242, 254), 

194 'color_dry': (238, 236, 230), 

195 'topo_cpt_wet': 'light_sea_uniform', 

196 'topo_cpt_dry': 'light_land_uniform'} 

197 elif options.theme == 'topo': 

198 color_kwargs = { 

199 'illuminate_factor_land': options.illuminate_factor_land or 0.5, 

200 'illuminate_factor_ocean': options.illuminate_factor_ocean or 0.25} 

201 

202 events = [] 

203 if options.events_fn: 

204 events = model.load_events(options.events_fn) 

205 

206 stations = [] 

207 

208 if options.stations_fn: 

209 stations = model.load_stations(options.stations_fn) 

210 

211 if not (len(args) == 4 or ( 

212 len(args) == 1 and (events or stations))): 

213 

214 parser.print_help() 

215 sys.exit(1) 

216 

217 if len(args) == 4: 

218 try: 

219 lat = float(args[0]) 

220 lon = float(args[1]) 

221 radius = float(args[2])*km 

222 except Exception: 

223 parser.print_help() 

224 sys.exit(1) 

225 else: 

226 lats, lons = latlon_arrays(stations+events) 

227 lat, lon = map(float, od.geographic_midpoint(lats, lons)) 

228 radius = float( 

229 num.max(od.distance_accurate50m_numpy(lat, lon, lats, lons))) 

230 radius *= 1.1 

231 

232 m = automap.Map( 

233 width=options.width, 

234 height=options.height, 

235 lat=lat, 

236 lon=lon, 

237 radius=radius, 

238 topo_resolution_max=options.topo_resolution_max, 

239 topo_resolution_min=options.topo_resolution_min, 

240 show_topo=options.show_topo, 

241 show_grid=options.show_grid, 

242 illuminate=options.illuminate, 

243 **color_kwargs) 

244 

245 logger.debug('map configuration:\n%s' % str(m)) 

246 

247 if options.show_cities: 

248 m.draw_cities() 

249 

250 if stations: 

251 lats = [s.lat for s in stations] 

252 lons = [s.lon for s in stations] 

253 

254 m.gmt.psxy( 

255 in_columns=(lons, lats), 

256 S='t8p', 

257 G='black', 

258 *m.jxyr) 

259 

260 for s in stations: 

261 m.add_label(s.lat, s.lon, '%s' % '.'.join( 

262 x for x in s.nsl() if x)) 

263 

264 if events: 

265 beachball_symbol = 'mt' 

266 beachball_size = 20.0 

267 for ev in events: 

268 if ev.moment_tensor is None: 

269 m.gmt.psxy( 

270 in_rows=[[ev.lon, ev.lat]], 

271 S='c12p', 

272 G=gmtpy.color('scarletred2'), 

273 W='1p,black', 

274 *m.jxyr) 

275 

276 else: 

277 devi = ev.moment_tensor.deviatoric() 

278 mt = devi.m_up_south_east() 

279 mt = mt / ev.moment_tensor.scalar_moment() \ 

280 * pmt.magnitude_to_moment(5.0) 

281 m6 = pmt.to6(mt) 

282 data = (ev.lon, ev.lat, 10) + tuple(m6) + (1, 0, 0) 

283 

284 if m.gmt.is_gmt5(): 

285 kwargs = dict( 

286 M=True, 

287 S='%s%g' % ( 

288 beachball_symbol[0], beachball_size / gmtpy.cm)) 

289 else: 

290 kwargs = dict( 

291 S='%s%g' % ( 

292 beachball_symbol[0], beachball_size*2 / gmtpy.cm)) 

293 

294 m.gmt.psmeca( 

295 in_rows=[data], 

296 G=gmtpy.color('chocolate1'), 

297 E='white', 

298 W='1p,%s' % gmtpy.color('chocolate3'), 

299 *m.jxyr, 

300 **kwargs) 

301 

302 m.save(args[-1]) 

303 

304 

305if __name__ == '__main__': 

306 main()