ADD: new track message, Entity class and Position class
This commit is contained in:
Henry Winkel
515
libs/geographiclib/src/DMS.cpp
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515
libs/geographiclib/src/DMS.cpp
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@@ -0,0 +1,515 @@
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/**
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* \file DMS.cpp
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* \brief Implementation for GeographicLib::DMS class
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*
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* Copyright (c) Charles Karney (2008-2022) <charles@karney.com> and licensed
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* under the MIT/X11 License. For more information, see
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* https://geographiclib.sourceforge.io/
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**********************************************************************/
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#include <GeographicLib/DMS.hpp>
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#include <GeographicLib/Utility.hpp>
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#if defined(_MSC_VER)
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// Squelch warnings about constant conditional and enum-float expressions
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# pragma warning (disable: 4127 5055)
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#endif
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namespace GeographicLib {
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using namespace std;
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const char* const DMS::hemispheres_ = "SNWE";
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const char* const DMS::signs_ = "-+";
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const char* const DMS::digits_ = "0123456789";
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const char* const DMS::dmsindicators_ = "D'\":";
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const char* const DMS::components_[] = {"degrees", "minutes", "seconds"};
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// Replace all occurrences of pat by c. If c is NULL remove pat.
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void DMS::replace(std::string& s, const std::string& pat, char c) {
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string::size_type p = 0;
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int count = c ? 1 : 0;
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while (true) {
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p = s.find(pat, p);
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if (p == string::npos)
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break;
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s.replace(p, pat.length(), count, c);
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}
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}
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Math::real DMS::Decode(const std::string& dms, flag& ind) {
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// Here's a table of the allowed characters
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// S unicode dec UTF-8 descripton
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// DEGREE
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// d U+0064 100 64 d
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// D U+0044 68 44 D
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// ° U+00b0 176 c2 b0 degree symbol
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// º U+00ba 186 c2 ba alt symbol
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// ⁰ U+2070 8304 e2 81 b0 sup zero
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// ˚ U+02da 730 cb 9a ring above
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// ∘ U+2218 8728 e2 88 98 compose function
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// * U+002a 42 2a GRiD symbol for degrees
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// MINUTES
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// ' U+0027 39 27 apostrophe
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// ` U+0060 96 60 grave accent
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// ′ U+2032 8242 e2 80 b2 prime
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// ‵ U+2035 8245 e2 80 b5 back prime
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// ´ U+00b4 180 c2 b4 acute accent
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// ‘ U+2018 8216 e2 80 98 left single quote (also ext ASCII 0x91)
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// ’ U+2019 8217 e2 80 99 right single quote (also ext ASCII 0x92)
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// ‛ U+201b 8219 e2 80 9b reversed-9 single quote
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// ʹ U+02b9 697 ca b9 modifier letter prime
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// ˊ U+02ca 714 cb 8a modifier letter acute accent
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// ˋ U+02cb 715 cb 8b modifier letter grave accent
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// SECONDS
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// " U+0022 34 22 quotation mark
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// ″ U+2033 8243 e2 80 b3 double prime
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// ‶ U+2036 8246 e2 80 b6 reversed double prime
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// ˝ U+02dd 733 cb 9d double acute accent
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// “ U+201c 8220 e2 80 9c left double quote (also ext ASCII 0x93)
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// ” U+201d 8221 e2 80 9d right double quote (also ext ASCII 0x94)
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// ‟ U+201f 8223 e2 80 9f reversed-9 double quote
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// ʺ U+02ba 698 ca ba modifier letter double prime
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// PLUS
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// + U+002b 43 2b plus sign
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// ➕ U+2795 10133 e2 9e 95 heavy plus
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// U+2064 8292 e2 81 a4 invisible plus ||
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// MINUS
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// - U+002d 45 2d hyphen
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// ‐ U+2010 8208 e2 80 90 dash
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// ‑ U+2011 8209 e2 80 91 non-breaking hyphen
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// – U+2013 8211 e2 80 93 en dash (also ext ASCII 0x96)
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// — U+2014 8212 e2 80 94 em dash (also ext ASCII 0x97)
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// − U+2212 8722 e2 88 92 minus sign
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// ➖ U+2796 10134 e2 9e 96 heavy minus
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// IGNORED
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// U+00a0 160 c2 a0 non-breaking space
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// U+2007 8199 e2 80 87 figure space | |
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// U+2009 8201 e2 80 89 thin space | |
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// U+200a 8202 e2 80 8a hair space | |
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// U+200b 8203 e2 80 8b invisible space ||
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// U+202f 8239 e2 80 af narrow space | |
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// U+2063 8291 e2 81 a3 invisible separator ||
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// « U+00ab 171 c2 ab left guillemot (for cgi-bin)
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// » U+00bb 187 c2 bb right guillemot (for cgi-bin)
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string dmsa = dms;
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replace(dmsa, "\xc2\xb0", 'd' ); // U+00b0 degree symbol
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replace(dmsa, "\xc2\xba", 'd' ); // U+00ba alt symbol
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replace(dmsa, "\xe2\x81\xb0", 'd' ); // U+2070 sup zero
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replace(dmsa, "\xcb\x9a", 'd' ); // U+02da ring above
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replace(dmsa, "\xe2\x88\x98", 'd' ); // U+2218 compose function
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replace(dmsa, "\xe2\x80\xb2", '\''); // U+2032 prime
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replace(dmsa, "\xe2\x80\xb5", '\''); // U+2035 back prime
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replace(dmsa, "\xc2\xb4", '\''); // U+00b4 acute accent
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replace(dmsa, "\xe2\x80\x98", '\''); // U+2018 left single quote
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replace(dmsa, "\xe2\x80\x99", '\''); // U+2019 right single quote
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replace(dmsa, "\xe2\x80\x9b", '\''); // U+201b reversed-9 single quote
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replace(dmsa, "\xca\xb9", '\''); // U+02b9 modifier letter prime
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replace(dmsa, "\xcb\x8a", '\''); // U+02ca modifier letter acute accent
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replace(dmsa, "\xcb\x8b", '\''); // U+02cb modifier letter grave accent
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replace(dmsa, "\xe2\x80\xb3", '"' ); // U+2033 double prime
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replace(dmsa, "\xe2\x80\xb6", '"' ); // U+2036 reversed double prime
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replace(dmsa, "\xcb\x9d", '"' ); // U+02dd double acute accent
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replace(dmsa, "\xe2\x80\x9c", '"' ); // U+201c left double quote
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replace(dmsa, "\xe2\x80\x9d", '"' ); // U+201d right double quote
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replace(dmsa, "\xe2\x80\x9f", '"' ); // U+201f reversed-9 double quote
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replace(dmsa, "\xca\xba", '"' ); // U+02ba modifier letter double prime
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replace(dmsa, "\xe2\x9e\x95", '+' ); // U+2795 heavy plus
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replace(dmsa, "\xe2\x81\xa4", '+' ); // U+2064 invisible plus
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replace(dmsa, "\xe2\x80\x90", '-' ); // U+2010 dash
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replace(dmsa, "\xe2\x80\x91", '-' ); // U+2011 non-breaking hyphen
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replace(dmsa, "\xe2\x80\x93", '-' ); // U+2013 en dash
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replace(dmsa, "\xe2\x80\x94", '-' ); // U+2014 em dash
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replace(dmsa, "\xe2\x88\x92", '-' ); // U+2212 minus sign
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replace(dmsa, "\xe2\x9e\x96", '-' ); // U+2796 heavy minus
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replace(dmsa, "\xc2\xa0", '\0'); // U+00a0 non-breaking space
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replace(dmsa, "\xe2\x80\x87", '\0'); // U+2007 figure space
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replace(dmsa, "\xe2\x80\x89", '\0'); // U+2007 thin space
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replace(dmsa, "\xe2\x80\x8a", '\0'); // U+200a hair space
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replace(dmsa, "\xe2\x80\x8b", '\0'); // U+200b invisible space
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replace(dmsa, "\xe2\x80\xaf", '\0'); // U+202f narrow space
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replace(dmsa, "\xe2\x81\xa3", '\0'); // U+2063 invisible separator
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replace(dmsa, "\xb0", 'd' ); // 0xb0 bare degree symbol
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replace(dmsa, "\xba", 'd' ); // 0xba bare alt symbol
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replace(dmsa, "*", 'd' ); // GRiD symbol for degree
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replace(dmsa, "`", '\''); // grave accent
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replace(dmsa, "\xb4", '\''); // 0xb4 bare acute accent
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// Don't implement these alternatives; they are only relevant for cgi-bin
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// replace(dmsa, "\x91", '\''); // 0x91 ext ASCII left single quote
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// replace(dmsa, "\x92", '\''); // 0x92 ext ASCII right single quote
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// replace(dmsa, "\x93", '"' ); // 0x93 ext ASCII left double quote
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// replace(dmsa, "\x94", '"' ); // 0x94 ext ASCII right double quote
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// replace(dmsa, "\x96", '-' ); // 0x96 ext ASCII en dash
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// replace(dmsa, "\x97", '-' ); // 0x97 ext ASCII em dash
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replace(dmsa, "\xa0", '\0'); // 0xa0 bare non-breaking space
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replace(dmsa, "''", '"' ); // '' -> "
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string::size_type
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beg = 0,
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end = unsigned(dmsa.size());
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while (beg < end && isspace(dmsa[beg]))
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++beg;
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while (beg < end && isspace(dmsa[end - 1]))
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--end;
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// The trimmed string in [beg, end)
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real v = -0.0; // So "-0" returns -0.0
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int i = 0;
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flag ind1 = NONE;
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// p is pointer to the next piece that needs decoding
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for (string::size_type p = beg, pb; p < end; p = pb, ++i) {
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string::size_type pa = p;
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// Skip over initial hemisphere letter (for i == 0)
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if (i == 0 && Utility::lookup(hemispheres_, dmsa[pa]) >= 0)
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++pa;
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// Skip over initial sign (checking for it if i == 0)
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if (i > 0 || (pa < end && Utility::lookup(signs_, dmsa[pa]) >= 0))
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++pa;
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// Find next sign
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pb = min(dmsa.find_first_of(signs_, pa), end);
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flag ind2 = NONE;
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v += InternalDecode(dmsa.substr(p, pb - p), ind2);
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if (ind1 == NONE)
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ind1 = ind2;
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else if (!(ind2 == NONE || ind1 == ind2))
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throw GeographicErr("Incompatible hemisphere specifier in " +
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dmsa.substr(beg, pb - beg));
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}
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if (i == 0)
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throw GeographicErr("Empty or incomplete DMS string " +
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dmsa.substr(beg, end - beg));
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ind = ind1;
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return v;
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}
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Math::real DMS::InternalDecode(const string& dmsa, flag& ind) {
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string errormsg;
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do { // Executed once (provides the ability to break)
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int sign = 1;
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unsigned
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beg = 0,
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end = unsigned(dmsa.size());
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flag ind1 = NONE;
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int k = -1;
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if (end > beg && (k = Utility::lookup(hemispheres_, dmsa[beg])) >= 0) {
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ind1 = (k / 2) ? LONGITUDE : LATITUDE;
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sign = k % 2 ? 1 : -1;
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++beg;
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}
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if (end > beg && (k = Utility::lookup(hemispheres_, dmsa[end-1])) >= 0) {
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if (k >= 0) {
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if (ind1 != NONE) {
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if (toupper(dmsa[beg - 1]) == toupper(dmsa[end - 1]))
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errormsg = "Repeated hemisphere indicators "
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+ Utility::str(dmsa[beg - 1])
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+ " in " + dmsa.substr(beg - 1, end - beg + 1);
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else
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errormsg = "Contradictory hemisphere indicators "
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+ Utility::str(dmsa[beg - 1]) + " and "
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+ Utility::str(dmsa[end - 1]) + " in "
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+ dmsa.substr(beg - 1, end - beg + 1);
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break;
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}
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ind1 = (k / 2) ? LONGITUDE : LATITUDE;
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sign = k % 2 ? 1 : -1;
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--end;
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}
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}
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if (end > beg && (k = Utility::lookup(signs_, dmsa[beg])) >= 0) {
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if (k >= 0) {
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sign *= k ? 1 : -1;
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++beg;
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}
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}
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if (end == beg) {
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errormsg = "Empty or incomplete DMS string " + dmsa;
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break;
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}
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real ipieces[] = {0, 0, 0};
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real fpieces[] = {0, 0, 0};
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unsigned npiece = 0;
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real icurrent = 0;
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real fcurrent = 0;
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unsigned ncurrent = 0, p = beg;
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bool pointseen = false;
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unsigned digcount = 0, intcount = 0;
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while (p < end) {
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char x = dmsa[p++];
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if ((k = Utility::lookup(digits_, x)) >= 0) {
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++ncurrent;
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if (digcount > 0)
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++digcount; // Count of decimal digits
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else {
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icurrent = 10 * icurrent + k;
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++intcount;
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}
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} else if (x == '.') {
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if (pointseen) {
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errormsg = "Multiple decimal points in "
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+ dmsa.substr(beg, end - beg);
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break;
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}
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pointseen = true;
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digcount = 1;
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} else if ((k = Utility::lookup(dmsindicators_, x)) >= 0) {
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if (k >= 3) {
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if (p == end) {
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errormsg = "Illegal for : to appear at the end of " +
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dmsa.substr(beg, end - beg);
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break;
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}
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k = npiece;
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}
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if (unsigned(k) == npiece - 1) {
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errormsg = "Repeated " + string(components_[k]) +
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" component in " + dmsa.substr(beg, end - beg);
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break;
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} else if (unsigned(k) < npiece) {
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errormsg = string(components_[k]) + " component follows "
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+ string(components_[npiece - 1]) + " component in "
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+ dmsa.substr(beg, end - beg);
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break;
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}
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if (ncurrent == 0) {
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errormsg = "Missing numbers in " + string(components_[k]) +
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" component of " + dmsa.substr(beg, end - beg);
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break;
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}
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if (digcount > 0) {
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istringstream s(dmsa.substr(p - intcount - digcount - 1,
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intcount + digcount));
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s >> fcurrent;
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icurrent = 0;
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}
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ipieces[k] = icurrent;
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fpieces[k] = icurrent + fcurrent;
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if (p < end) {
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npiece = k + 1;
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icurrent = fcurrent = 0;
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ncurrent = digcount = intcount = 0;
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}
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} else if (Utility::lookup(signs_, x) >= 0) {
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errormsg = "Internal sign in DMS string "
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+ dmsa.substr(beg, end - beg);
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break;
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} else {
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errormsg = "Illegal character " + Utility::str(x) + " in DMS string "
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+ dmsa.substr(beg, end - beg);
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break;
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}
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}
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if (!errormsg.empty())
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break;
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if (Utility::lookup(dmsindicators_, dmsa[p - 1]) < 0) {
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if (npiece >= 3) {
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errormsg = "Extra text following seconds in DMS string "
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+ dmsa.substr(beg, end - beg);
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break;
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}
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if (ncurrent == 0) {
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errormsg = "Missing numbers in trailing component of "
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+ dmsa.substr(beg, end - beg);
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break;
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}
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if (digcount > 0) {
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istringstream s(dmsa.substr(p - intcount - digcount,
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intcount + digcount));
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s >> fcurrent;
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icurrent = 0;
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}
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ipieces[npiece] = icurrent;
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fpieces[npiece] = icurrent + fcurrent;
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}
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if (pointseen && digcount == 0) {
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errormsg = "Decimal point in non-terminal component of "
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+ dmsa.substr(beg, end - beg);
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break;
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}
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// Note that we accept 59.999999... even though it rounds to 60.
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if (ipieces[1] >= Math::dm || fpieces[1] > Math::dm ) {
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errormsg = "Minutes " + Utility::str(fpieces[1])
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+ " not in range [0, " + to_string(Math::dm) + ")";
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break;
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}
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if (ipieces[2] >= Math::ms || fpieces[2] > Math::ms) {
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errormsg = "Seconds " + Utility::str(fpieces[2])
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+ " not in range [0, " + to_string(Math::ms) + ")";
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break;
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}
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ind = ind1;
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// Assume check on range of result is made by calling routine (which
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// might be able to offer a better diagnostic).
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return real(sign) *
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( fpieces[2] != 0 ?
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(Math::ms*(Math::dm*fpieces[0] + fpieces[1]) + fpieces[2])/Math::ds :
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( fpieces[1] != 0 ?
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(Math::dm*fpieces[0] + fpieces[1]) / Math::dm : fpieces[0] ) );
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} while (false);
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real val = Utility::nummatch<real>(dmsa);
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if (val == 0)
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throw GeographicErr(errormsg);
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else
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ind = NONE;
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return val;
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}
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void DMS::DecodeLatLon(const string& stra, const string& strb,
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real& lat, real& lon,
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bool longfirst) {
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real a, b;
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flag ia, ib;
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a = Decode(stra, ia);
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b = Decode(strb, ib);
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if (ia == NONE && ib == NONE) {
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// Default to lat, long unless longfirst
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ia = longfirst ? LONGITUDE : LATITUDE;
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ib = longfirst ? LATITUDE : LONGITUDE;
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} else if (ia == NONE)
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ia = flag(LATITUDE + LONGITUDE - ib);
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else if (ib == NONE)
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ib = flag(LATITUDE + LONGITUDE - ia);
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if (ia == ib)
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throw GeographicErr("Both " + stra + " and "
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+ strb + " interpreted as "
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+ (ia == LATITUDE ? "latitudes" : "longitudes"));
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real
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lat1 = ia == LATITUDE ? a : b,
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lon1 = ia == LATITUDE ? b : a;
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if (fabs(lat1) > Math::qd)
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throw GeographicErr("Latitude " + Utility::str(lat1)
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+ "d not in [-" + to_string(Math::qd)
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+ "d, " + to_string(Math::qd) + "d]");
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lat = lat1;
|
||||
lon = lon1;
|
||||
}
|
||||
|
||||
Math::real DMS::DecodeAngle(const string& angstr) {
|
||||
flag ind;
|
||||
real ang = Decode(angstr, ind);
|
||||
if (ind != NONE)
|
||||
throw GeographicErr("Arc angle " + angstr
|
||||
+ " includes a hemisphere, N/E/W/S");
|
||||
return ang;
|
||||
}
|
||||
|
||||
Math::real DMS::DecodeAzimuth(const string& azistr) {
|
||||
flag ind;
|
||||
real azi = Decode(azistr, ind);
|
||||
if (ind == LATITUDE)
|
||||
throw GeographicErr("Azimuth " + azistr
|
||||
+ " has a latitude hemisphere, N/S");
|
||||
return Math::AngNormalize(azi);
|
||||
}
|
||||
|
||||
string DMS::Encode(real angle, component trailing, unsigned prec, flag ind,
|
||||
char dmssep) {
|
||||
// Assume check on range of input angle has been made by calling
|
||||
// routine (which might be able to offer a better diagnostic).
|
||||
if (!isfinite(angle))
|
||||
return angle < 0 ? string("-inf") :
|
||||
(angle > 0 ? string("inf") : string("nan"));
|
||||
|
||||
// 15 - 2 * trailing = ceiling(log10(2^53/90/60^trailing)).
|
||||
// This suffices to give full real precision for numbers in [-90,90]
|
||||
prec = min(15 + Math::extra_digits() - 2 * unsigned(trailing), prec);
|
||||
real scale = trailing == MINUTE ? Math::dm :
|
||||
(trailing == SECOND ? Math::ds : 1);
|
||||
if (ind == AZIMUTH) {
|
||||
angle = Math::AngNormalize(angle);
|
||||
// Only angles strictly less than 0 can become 360; since +/-180 are
|
||||
// folded together, we convert -0 to +0 (instead of 360).
|
||||
if (angle < 0)
|
||||
angle += Math::td;
|
||||
else
|
||||
angle = Math::real(0) + angle;
|
||||
}
|
||||
int sign = signbit(angle) ? -1 : 1;
|
||||
angle *= sign;
|
||||
|
||||
// Break off integer part to preserve precision and avoid overflow in
|
||||
// manipulation of fractional part for MINUTE and SECOND
|
||||
real
|
||||
idegree = trailing == DEGREE ? 0 : floor(angle),
|
||||
fdegree = (angle - idegree) * scale;
|
||||
string s = Utility::str(fdegree, prec), degree, minute, second;
|
||||
switch (trailing) {
|
||||
case DEGREE:
|
||||
degree = s;
|
||||
break;
|
||||
default: // case MINUTE: case SECOND:
|
||||
string::size_type p = s.find_first_of('.');
|
||||
long long i;
|
||||
if (p == 0)
|
||||
i = 0;
|
||||
else {
|
||||
i = stoll(s);
|
||||
if (p == string::npos)
|
||||
s.clear();
|
||||
else
|
||||
s = s.substr(p);
|
||||
}
|
||||
// Now i in [0,Math::dm] or [0,Math::ds] for MINUTE/DEGREE
|
||||
switch (trailing) {
|
||||
case MINUTE:
|
||||
minute = to_string(i % Math::dm) + s; i /= Math::dm;
|
||||
degree = Utility::str(i + idegree, 0); // no overflow since i in [0,1]
|
||||
break;
|
||||
default: // case SECOND:
|
||||
second = to_string(i % Math::ms) + s; i /= Math::ms;
|
||||
minute = to_string(i % Math::dm) ; i /= Math::dm;
|
||||
degree = Utility::str(i + idegree, 0); // no overflow since i in [0,1]
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
// No glue together degree+minute+second with
|
||||
// sign + zero-fill + delimiters + hemisphere
|
||||
ostringstream str;
|
||||
if (prec) ++prec; // Extra width for decimal point
|
||||
if (ind == NONE && sign < 0)
|
||||
str << '-';
|
||||
str << setfill('0');
|
||||
switch (trailing) {
|
||||
case DEGREE:
|
||||
if (ind != NONE)
|
||||
str << setw(1 + min(int(ind), 2) + prec);
|
||||
str << degree;
|
||||
// Don't include degree designator (d) if it is the trailing component.
|
||||
break;
|
||||
case MINUTE:
|
||||
if (ind != NONE)
|
||||
str << setw(1 + min(int(ind), 2));
|
||||
str << degree << (dmssep ? dmssep : char(tolower(dmsindicators_[0])))
|
||||
<< setw(2 + prec) << minute;
|
||||
if (!dmssep)
|
||||
str << char(tolower(dmsindicators_[1]));
|
||||
break;
|
||||
default: // case SECOND:
|
||||
if (ind != NONE)
|
||||
str << setw(1 + min(int(ind), 2));
|
||||
str << degree << (dmssep ? dmssep : char(tolower(dmsindicators_[0])))
|
||||
<< setw(2)
|
||||
<< minute << (dmssep ? dmssep : char(tolower(dmsindicators_[1])))
|
||||
<< setw(2 + prec) << second;
|
||||
if (!dmssep)
|
||||
str << char(tolower(dmsindicators_[2]));
|
||||
break;
|
||||
}
|
||||
if (ind != NONE && ind != AZIMUTH)
|
||||
str << hemispheres_[(ind == LATITUDE ? 0 : 2) + (sign < 0 ? 0 : 1)];
|
||||
return str.str();
|
||||
}
|
||||
|
||||
} // namespace GeographicLib
|
||||
Reference in New Issue
Block a user