GeographicLib: GeoidEval.cpp Source File

GeographicLib 2.5.2

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GeoidEval.cpp
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1/**
2 * \file GeoidEval.cpp
3 * \brief Command line utility for evaluating geoid heights
4 *
5 * Copyright (c) Charles Karney (2009-2017) <karney@alum.mit.edu> and licensed
6 * under the MIT/X11 License. For more information, see
7 * https://geographiclib.sourceforge.io/
8 *
9 * See the <a href="GeoidEval.1.html">man page</a> for usage information.
10 **********************************************************************/
11
12#include <iostream>
13#include <string>
14#include <sstream>
15#include <fstream>
16#include <GeographicLib/Geoid.hpp>
17#include <GeographicLib/DMS.hpp>
18#include <GeographicLib/Utility.hpp>
19#include <GeographicLib/GeoCoords.hpp>
20
21#if defined(_MSC_VER)
22// Squelch warnings about potentially uninitialized local variables
23# pragma warning (disable: 4701)
24#endif
25
26#include "GeoidEval.usage"
27
28 int main(int argc, const char* const argv[]) {
29 try {
30 using namespace GeographicLib;
31 typedef Math::real real;
32 Utility::set_digits();
33 bool cacheall = false, cachearea = false, verbose = false, cubic = true;
34 real caches, cachew, cachen, cachee;
35 std::string dir;
36 std::string geoid = Geoid::DefaultGeoidName();
37 Geoid::convertflag heightmult = Geoid::NONE;
38 std::string istring, ifile, ofile, cdelim;
39 char lsep = ';';
40 bool northp = false, longfirst = false;
41 int zonenum = UTMUPS::INVALID;
42
43 for (int m = 1; m < argc; ++m) {
44 std::string arg(argv[m]);
45 if (arg == "-a") {
46 cacheall = true;
47 cachearea = false;
48 }
49 else if (arg == "-c") {
50 if (m + 4 >= argc) return usage(1, true);
51 cacheall = false;
52 cachearea = true;
53 try {
54 DMS::DecodeLatLon(std::string(argv[m + 1]), std::string(argv[m + 2]),
55 caches, cachew, longfirst);
56 DMS::DecodeLatLon(std::string(argv[m + 3]), std::string(argv[m + 4]),
57 cachen, cachee, longfirst);
58 }
59 catch (const std::exception& e) {
60 std::cerr << "Error decoding argument of -c: " << e.what() << "\n";
61 return 1;
62 }
63 m += 4;
64 } else if (arg == "--msltohae")
65 heightmult = Geoid::GEOIDTOELLIPSOID;
66 else if (arg == "--haetomsl")
67 heightmult = Geoid::ELLIPSOIDTOGEOID;
68 else if (arg == "-w")
69 longfirst = !longfirst;
70 else if (arg == "-z") {
71 if (++m == argc) return usage(1, true);
72 std::string zone = argv[m];
73 try {
74 UTMUPS::DecodeZone(zone, zonenum, northp);
75 }
76 catch (const std::exception& e) {
77 std::cerr << "Error decoding zone: " << e.what() << "\n";
78 return 1;
79 }
80 if (!(zonenum >= UTMUPS::MINZONE && zonenum <= UTMUPS::MAXZONE)) {
81 std::cerr << "Illegal zone " << zone << "\n";
82 return 1;
83 }
84 } else if (arg == "-n") {
85 if (++m == argc) return usage(1, true);
86 geoid = argv[m];
87 } else if (arg == "-d") {
88 if (++m == argc) return usage(1, true);
89 dir = argv[m];
90 } else if (arg == "-l")
91 cubic = false;
92 else if (arg == "-v")
93 verbose = true;
94 else if (arg == "--input-string") {
95 if (++m == argc) return usage(1, true);
96 istring = argv[m];
97 } else if (arg == "--input-file") {
98 if (++m == argc) return usage(1, true);
99 ifile = argv[m];
100 } else if (arg == "--output-file") {
101 if (++m == argc) return usage(1, true);
102 ofile = argv[m];
103 } else if (arg == "--line-separator") {
104 if (++m == argc) return usage(1, true);
105 if (std::string(argv[m]).size() != 1) {
106 std::cerr << "Line separator must be a single character\n";
107 return 1;
108 }
109 lsep = argv[m][0];
110 } else if (arg == "--comment-delimiter") {
111 if (++m == argc) return usage(1, true);
112 cdelim = argv[m];
113 } else if (arg == "--version") {
114 std::cout << argv[0] << ": GeographicLib version "
115 << GEOGRAPHICLIB_VERSION_STRING << "\n";
116 return 0;
117 } else {
118 int retval = usage(!(arg == "-h" || arg == "--help"), arg != "--help");
119 if (arg == "-h")
120 std::cout
121 << "\nDefault geoid path = \"" << Geoid::DefaultGeoidPath()
122 << "\"\nDefault geoid name = \"" << Geoid::DefaultGeoidName()
123 << "\"\n";
124 return retval;
125 }
126 }
127
128 if (!ifile.empty() && !istring.empty()) {
129 std::cerr << "Cannot specify --input-string and --input-file together\n";
130 return 1;
131 }
132 if (ifile == "-") ifile.clear();
133 std::ifstream infile;
134 std::istringstream instring;
135 if (!ifile.empty()) {
136 infile.open(ifile.c_str());
137 if (!infile.is_open()) {
138 std::cerr << "Cannot open " << ifile << " for reading\n";
139 return 1;
140 }
141 } else if (!istring.empty()) {
142 std::string::size_type m = 0;
143 while (true) {
144 m = istring.find(lsep, m);
145 if (m == std::string::npos)
146 break;
147 istring[m] = '\n';
148 }
149 instring.str(istring);
150 }
151 std::istream* input = !ifile.empty() ? &infile :
152 (!istring.empty() ? &instring : &std::cin);
153
154 std::ofstream outfile;
155 if (ofile == "-") ofile.clear();
156 if (!ofile.empty()) {
157 outfile.open(ofile.c_str());
158 if (!outfile.is_open()) {
159 std::cerr << "Cannot open " << ofile << " for writing\n";
160 return 1;
161 }
162 }
163 std::ostream* output = !ofile.empty() ? &outfile : &std::cout;
164
165 int retval = 0;
166 try {
167 const Geoid g(geoid, dir, cubic);
168 try {
169 if (cacheall)
170 g.CacheAll();
171 else if (cachearea)
172 g.CacheArea(caches, cachew, cachen, cachee);
173 }
174 catch (const std::exception& e) {
175 std::cerr << "ERROR: " << e.what() << "\nProceeding without a cache\n";
176 }
177 if (verbose) {
178 std::cerr << "Geoid file: " << g.GeoidFile() << "\n"
179 << "Description: " << g.Description() << "\n"
180 << "Interpolation: " << g.Interpolation() << "\n"
181 << "Date & Time: " << g.DateTime() << "\n"
182 << "Offset (m): " << g.Offset() << "\n"
183 << "Scale (m): " << g.Scale() << "\n"
184 << "Max error (m): " << g.MaxError() << "\n"
185 << "RMS error (m): " << g.RMSError() << "\n";
186 if (g.Cache())
187 std::cerr
188 << "Caching:"
189 << "\n SW Corner: " << g.CacheSouth() << " " << g.CacheWest()
190 << "\n NE Corner: " << g.CacheNorth() << " " << g.CacheEast()
191 << "\n";
192 }
193
194 GeoCoords p;
195 std::string s, eol, suff;
196 const char* spaces = " \t\n\v\f\r,"; // Include comma as space
197 while (std::getline(*input, s)) {
198 try {
199 eol = "\n";
200 if (!cdelim.empty()) {
201 std::string::size_type m = s.find(cdelim);
202 if (m != std::string::npos) {
203 eol = " " + s.substr(m) + "\n";
204 std::string::size_type m1 =
205 m > 0 ? s.find_last_not_of(spaces, m - 1) : std::string::npos;
206 s = s.substr(0, m1 != std::string::npos ? m1 + 1 : m);
207 }
208 }
209 real height = 0;
210 if (zonenum != UTMUPS::INVALID) {
211 // Expect "easting northing" if heightmult == 0, or
212 // "easting northing height" if heightmult != 0.
213 std::string::size_type pa = 0, pb = 0;
214 real easting = 0, northing = 0;
215 for (int i = 0; i < (heightmult ? 3 : 2); ++i) {
216 if (pb == std::string::npos)
217 throw GeographicErr("Incomplete input: " + s);
218 // Start of i'th token
219 pa = s.find_first_not_of(spaces, pb);
220 if (pa == std::string::npos)
221 throw GeographicErr("Incomplete input: " + s);
222 // End of i'th token
223 pb = s.find_first_of(spaces, pa);
224 (i == 2 ? height : (i == 0 ? easting : northing)) =
225 Utility::val<real>(s.substr(pa, (pb == std::string::npos ?
226 pb : pb - pa)));
227 }
228 p.Reset(zonenum, northp, easting, northing);
229 if (heightmult) {
230 suff = pb == std::string::npos ? "" : s.substr(pb);
231 s = s.substr(0, pa);
232 }
233 } else {
234 if (heightmult) {
235 // Treat last token as height
236 // pb = last char of last token
237 // pa = last char preceding white space
238 // px = last char of 2nd last token
239 std::string::size_type pb = s.find_last_not_of(spaces);
240 std::string::size_type pa = s.find_last_of(spaces, pb);
241 if (pa == std::string::npos || pb == std::string::npos)
242 throw GeographicErr("Incomplete input: " + s);
243 height = Utility::val<real>(s.substr(pa + 1, pb - pa));
244 s = s.substr(0, pa + 1);
245 }
246 p.Reset(s, true, longfirst);
247 }
248 if (heightmult) {
249 real h = g(p.Latitude(), p.Longitude());
250 *output << s
251 << Utility::str(height + real(heightmult) * h, 4)
252 << suff << eol;
253 } else {
254 real h = g(p.Latitude(), p.Longitude());
255 *output << Utility::str(h, 4) << eol;
256 }
257 }
258 catch (const std::exception& e) {
259 *output << "ERROR: " << e.what() << "\n";
260 retval = 1;
261 }
262 }
263 }
264 catch (const std::exception& e) {
265 std::cerr << "Error reading " << geoid << ": " << e.what() << "\n";
266 retval = 1;
267 }
268 return retval;
269 }
270 catch (const std::exception& e) {
271 std::cerr << "Caught exception: " << e.what() << "\n";
272 return 1;
273 }
274 catch (...) {
275 std::cerr << "Caught unknown exception\n";
276 return 1;
277 }
278}
DMS.hpp
Header for GeographicLib::DMS class.
GeoCoords.hpp
Header for GeographicLib::GeoCoords class.
real
GeographicLib::Math::real real
Definition GeodSolve.cpp:28
main
int main(int argc, const char *const argv[])
Definition GeoidEval.cpp:28
Geoid.hpp
Header for GeographicLib::Geoid class.
Utility.hpp
Header for GeographicLib::Utility class.
GeographicLib::DMS::DecodeLatLon
static void DecodeLatLon(const std::string &dmsa, const std::string &dmsb, real &lat, real &lon, bool longfirst=false)
Definition DMS.cpp:369
GeographicLib::GeoCoords
Conversion between geographic coordinates.
Definition GeoCoords.hpp:49
GeographicLib::GeoCoords::Reset
void Reset(const std::string &s, bool centerp=true, bool longfirst=false)
Definition GeoCoords.cpp:19
GeographicLib::GeoCoords::Latitude
Math::real Latitude() const
Definition GeoCoords.hpp:276
GeographicLib::GeoCoords::Longitude
Math::real Longitude() const
Definition GeoCoords.hpp:281
GeographicLib::GeographicErr
Exception handling for GeographicLib.
Definition Constants.hpp:316
GeographicLib::Geoid
Looking up the height of the geoid above the ellipsoid.
Definition Geoid.hpp:82
GeographicLib::Geoid::Scale
Math::real Scale() const
Definition Geoid.hpp:380
GeographicLib::Geoid::MaxError
Math::real MaxError() const
Definition Geoid.hpp:355
GeographicLib::Geoid::DefaultGeoidPath
static std::string DefaultGeoidPath()
Definition Geoid.cpp:489
GeographicLib::Geoid::Description
const std::string & Description() const
Definition Geoid.hpp:319
GeographicLib::Geoid::CacheEast
Math::real CacheEast() const
Definition Geoid.hpp:404
GeographicLib::Geoid::Cache
bool Cache() const
Definition Geoid.hpp:390
GeographicLib::Geoid::RMSError
Math::real RMSError() const
Definition Geoid.hpp:364
GeographicLib::Geoid::GeoidFile
const std::string & GeoidFile() const
Definition Geoid.hpp:329
GeographicLib::Geoid::convertflag
convertflag
Definition Geoid.hpp:179
GeographicLib::Geoid::ELLIPSOIDTOGEOID
@ ELLIPSOIDTOGEOID
Definition Geoid.hpp:184
GeographicLib::Geoid::NONE
@ NONE
Definition Geoid.hpp:188
GeographicLib::Geoid::GEOIDTOELLIPSOID
@ GEOIDTOELLIPSOID
Definition Geoid.hpp:193
GeographicLib::Geoid::CacheSouth
Math::real CacheSouth() const
Definition Geoid.hpp:422
GeographicLib::Geoid::CacheAll
void CacheAll() const
Definition Geoid.hpp:259
GeographicLib::Geoid::Interpolation
const std::string Interpolation() const
Definition Geoid.hpp:345
GeographicLib::Geoid::CacheNorth
Math::real CacheNorth() const
Definition Geoid.hpp:414
GeographicLib::Geoid::DefaultGeoidName
static std::string DefaultGeoidName()
Definition Geoid.cpp:502
GeographicLib::Geoid::Offset
Math::real Offset() const
Definition Geoid.hpp:372
GeographicLib::Geoid::CacheArea
void CacheArea(real south, real west, real north, real east) const
Definition Geoid.cpp:408
GeographicLib::Geoid::DateTime
const std::string & DateTime() const
Definition Geoid.hpp:324
GeographicLib::Geoid::CacheWest
Math::real CacheWest() const
Definition Geoid.hpp:395
GeographicLib::Math::real
double real
Definition Math.hpp:115
GeographicLib::UTMUPS::MAXZONE
@ MAXZONE
Definition UTMUPS.hpp:162
GeographicLib::UTMUPS::INVALID
@ INVALID
Definition UTMUPS.hpp:117
GeographicLib::UTMUPS::MINZONE
@ MINZONE
Definition UTMUPS.hpp:146
GeographicLib::UTMUPS::DecodeZone
static void DecodeZone(const std::string &zonestr, int &zone, bool &northp)
Definition UTMUPS.cpp:207
GeographicLib::Utility::val
static T val(const std::string &s)
Definition Utility.hpp:225
GeographicLib::Utility::set_digits
static int set_digits(int ndigits=0)
Definition Utility.cpp:184
GeographicLib::Utility::str
static std::string str(T x, int p=-1)
Definition Utility.hpp:161
GeographicLib
Namespace for GeographicLib.
Definition Accumulator.cpp:12