[1534ed9] | 1 | /* kml.cc |
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| 2 | * Export from Aven as KML. |
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| 3 | */ |
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| 4 | /* Copyright (C) 2012 Olaf Kähler |
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[d01b55a] | 5 | * Copyright (C) 2012,2013,2014,2015,2016,2017,2018 Olly Betts |
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[1534ed9] | 6 | * |
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| 7 | * This program is free software; you can redistribute it and/or modify |
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| 8 | * it under the terms of the GNU General Public License as published by |
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| 9 | * the Free Software Foundation; either version 2 of the License, or |
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| 10 | * (at your option) any later version. |
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| 11 | * |
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| 12 | * This program is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | * GNU General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU General Public License |
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| 18 | * along with this program; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |
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| 22 | #ifdef HAVE_CONFIG_H |
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| 23 | # include <config.h> |
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| 24 | #endif |
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| 25 | |
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| 26 | #include "kml.h" |
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| 27 | |
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| 28 | #include "export.h" // For LABELS, etc |
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| 29 | |
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| 30 | #include <stdio.h> |
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| 31 | #include <string> |
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| 32 | #include <math.h> |
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| 33 | |
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| 34 | #include "useful.h" |
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[8719711] | 35 | #define ACCEPT_USE_OF_DEPRECATED_PROJ_API_H 1 |
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[1534ed9] | 36 | #include <proj_api.h> |
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| 37 | |
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| 38 | #include "aven.h" |
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| 39 | #include "message.h" |
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| 40 | |
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| 41 | using namespace std; |
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| 42 | |
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| 43 | #define WGS84_DATUM_STRING "+proj=longlat +ellps=WGS84 +datum=WGS84" |
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| 44 | |
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| 45 | static void |
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| 46 | html_escape(FILE *fh, const char *s) |
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| 47 | { |
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| 48 | while (*s) { |
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| 49 | switch (*s) { |
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| 50 | case '<': |
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| 51 | fputs("<", fh); |
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| 52 | break; |
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| 53 | case '>': |
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| 54 | fputs(">", fh); |
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| 55 | break; |
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| 56 | case '&': |
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| 57 | fputs("&", fh); |
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| 58 | break; |
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| 59 | default: |
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| 60 | PUTC(*s, fh); |
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| 61 | } |
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| 62 | ++s; |
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| 63 | } |
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| 64 | } |
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| 65 | |
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[32a040e] | 66 | KML::KML(const char * input_datum, bool clamp_to_ground_) |
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| 67 | : clamp_to_ground(clamp_to_ground_) |
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[1534ed9] | 68 | { |
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| 69 | if (!(pj_input = pj_init_plus(input_datum))) { |
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| 70 | wxString m = wmsg(/*Failed to initialise input coordinate system “%s”*/287); |
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| 71 | m = wxString::Format(m.c_str(), input_datum); |
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| 72 | throw m; |
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| 73 | } |
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| 74 | if (!(pj_output = pj_init_plus(WGS84_DATUM_STRING))) { |
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| 75 | wxString m = wmsg(/*Failed to initialise output coordinate system “%s”*/288); |
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| 76 | m = wxString::Format(m.c_str(), WGS84_DATUM_STRING); |
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| 77 | throw m; |
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| 78 | } |
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| 79 | } |
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| 80 | |
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| 81 | KML::~KML() |
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| 82 | { |
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| 83 | if (pj_input) |
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| 84 | pj_free(pj_input); |
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| 85 | if (pj_output) |
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| 86 | pj_free(pj_output); |
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| 87 | } |
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| 88 | |
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| 89 | const int * |
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| 90 | KML::passes() const |
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| 91 | { |
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[f2cb101] | 92 | static const int default_passes[] = { |
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[e63994c] | 93 | PASG, XSECT, WALL1, WALL2, LEGS|SURF, LABELS|ENTS|FIXES|EXPORTS, 0 |
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[f2cb101] | 94 | }; |
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[1534ed9] | 95 | return default_passes; |
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| 96 | } |
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| 97 | |
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| 98 | /* Initialise KML routines. */ |
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[55a861a] | 99 | void KML::header(const char * title, const char *, time_t, |
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| 100 | double, double, double, double, double, double) |
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[1534ed9] | 101 | { |
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| 102 | fputs( |
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| 103 | "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" |
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| 104 | "<kml xmlns=\"http://www.opengis.net/kml/2.2\">\n", fh); |
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| 105 | fputs("<Document><name>", fh); |
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| 106 | html_escape(fh, title); |
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| 107 | fputs("</name>\n", fh); |
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[7aed359] | 108 | // Set up styles for the icons to reduce the file size. |
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| 109 | fputs("<Style id=\"fix\"><IconStyle>" |
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[72e6593] | 110 | "<Icon><href>http://maps.google.com/mapfiles/kml/paddle/red-blank.png</href></Icon>" |
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[7aed359] | 111 | "</IconStyle></Style>\n", fh); |
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| 112 | fputs("<Style id=\"exp\"><IconStyle>" |
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[72e6593] | 113 | "<Icon><href>http://maps.google.com/mapfiles/kml/paddle/blu-blank.png</href></Icon>" |
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[7aed359] | 114 | "</IconStyle></Style>\n", fh); |
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| 115 | fputs("<Style id=\"ent\"><IconStyle>" |
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[72e6593] | 116 | "<Icon><href>http://maps.google.com/mapfiles/kml/paddle/grn-blank.png</href></Icon>" |
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[7aed359] | 117 | "</IconStyle></Style>\n", fh); |
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[1534ed9] | 118 | // FIXME: does KML allow bounds? |
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| 119 | // NB Lat+long bounds are not necessarily the same as the bounds in survex |
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| 120 | // coords translated to WGS84 lat+long... |
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| 121 | } |
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| 122 | |
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[f03d89e] | 123 | void |
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[0fe63d3] | 124 | KML::start_pass(int) |
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[f03d89e] | 125 | { |
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| 126 | if (in_linestring) { |
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| 127 | fputs("</coordinates></LineString></MultiGeometry></Placemark>\n", fh); |
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| 128 | in_linestring = false; |
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| 129 | } |
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| 130 | } |
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| 131 | |
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[1534ed9] | 132 | void |
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[a2c29c1] | 133 | KML::line(const img_point *p1, const img_point *p, unsigned /*flags*/, bool fPendingMove) |
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[1534ed9] | 134 | { |
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| 135 | if (fPendingMove) { |
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[3b23819] | 136 | if (!in_linestring) { |
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| 137 | in_linestring = true; |
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| 138 | fputs("<Placemark><MultiGeometry>\n", fh); |
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| 139 | } else { |
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| 140 | fputs("</coordinates></LineString>\n", fh); |
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| 141 | } |
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[32a040e] | 142 | if (clamp_to_ground) { |
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| 143 | fputs("<LineString><coordinates>\n", fh); |
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| 144 | } else { |
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| 145 | fputs("<LineString><altitudeMode>absolute</altitudeMode><coordinates>\n", fh); |
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| 146 | } |
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[1534ed9] | 147 | double X = p1->x, Y = p1->y, Z = p1->z; |
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| 148 | pj_transform(pj_input, pj_output, 1, 1, &X, &Y, &Z); |
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| 149 | X = deg(X); |
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| 150 | Y = deg(Y); |
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| 151 | // %.8f is at worst just over 1mm. |
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[ae6a68c] | 152 | fprintf(fh, "%.8f,%.8f,%.2f\n", X, Y, Z); |
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[1534ed9] | 153 | } |
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| 154 | double X = p->x, Y = p->y, Z = p->z; |
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| 155 | pj_transform(pj_input, pj_output, 1, 1, &X, &Y, &Z); |
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| 156 | X = deg(X); |
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| 157 | Y = deg(Y); |
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| 158 | // %.8f is at worst just over 1mm. |
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[ae6a68c] | 159 | fprintf(fh, "%.8f,%.8f,%.2f\n", X, Y, Z); |
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[1534ed9] | 160 | } |
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| 161 | |
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[e63994c] | 162 | void |
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| 163 | KML::xsect(const img_point *p, double angle, double d1, double d2) |
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| 164 | { |
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| 165 | double s = sin(rad(angle)); |
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| 166 | double c = cos(rad(angle)); |
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| 167 | |
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| 168 | double x1 = p->x + c * d1; |
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| 169 | double y1 = p->y + s * d1; |
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| 170 | double z1 = p->z; |
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| 171 | pj_transform(pj_input, pj_output, 1, 1, &x1, &y1, &z1); |
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| 172 | x1 = deg(x1); |
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| 173 | y1 = deg(y1); |
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| 174 | |
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| 175 | double x2 = p->x - c * d2; |
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| 176 | double y2 = p->y - s * d2; |
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| 177 | double z2 = p->z; |
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| 178 | pj_transform(pj_input, pj_output, 1, 1, &x2, &y2, &z2); |
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| 179 | x2 = deg(x2); |
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| 180 | y2 = deg(y2); |
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| 181 | |
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[32a040e] | 182 | if (clamp_to_ground) { |
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| 183 | fputs("<Placemark><name></name><LineString><coordinates>", fh); |
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| 184 | } else { |
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| 185 | fputs("<Placemark><name></name><LineString><altitudeMode>absolute</altitudeMode><coordinates>", fh); |
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| 186 | } |
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[9ada71a] | 187 | fprintf(fh, "%.8f,%.8f,%.2f %.8f,%.8f,%.2f", x1, y1, z1, x2, y2, z2); |
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[e63994c] | 188 | fputs("</coordinates></LineString></Placemark>\n", fh); |
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| 189 | } |
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| 190 | |
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| 191 | void |
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| 192 | KML::wall(const img_point *p, double angle, double d) |
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| 193 | { |
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| 194 | double s = sin(rad(angle)); |
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| 195 | double c = cos(rad(angle)); |
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| 196 | |
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| 197 | double x = p->x + c * d; |
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| 198 | double y = p->y + s * d; |
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| 199 | double z = p->z; |
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| 200 | pj_transform(pj_input, pj_output, 1, 1, &x, &y, &z); |
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| 201 | x = deg(x); |
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| 202 | y = deg(y); |
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| 203 | |
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| 204 | if (!in_wall) { |
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[6028fff] | 205 | if (clamp_to_ground) { |
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| 206 | fputs("<Placemark><name></name><LineString><coordinates>", fh); |
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| 207 | } else { |
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| 208 | fputs("<Placemark><name></name><LineString><altitudeMode>absolute</altitudeMode><coordinates>", fh); |
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| 209 | } |
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| 210 | in_wall = true; |
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[e63994c] | 211 | } |
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[9ada71a] | 212 | fprintf(fh, "%.8f,%.8f,%.2f\n", x, y, z); |
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[e63994c] | 213 | } |
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| 214 | |
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[f2cb101] | 215 | void |
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| 216 | KML::passage(const img_point *p, double angle, double d1, double d2) |
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| 217 | { |
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| 218 | double s = sin(rad(angle)); |
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| 219 | double c = cos(rad(angle)); |
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| 220 | |
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| 221 | double x1 = p->x + c * d1; |
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| 222 | double y1 = p->y + s * d1; |
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| 223 | double z1 = p->z; |
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| 224 | pj_transform(pj_input, pj_output, 1, 1, &x1, &y1, &z1); |
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| 225 | x1 = deg(x1); |
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| 226 | y1 = deg(y1); |
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| 227 | |
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| 228 | double x2 = p->x - c * d2; |
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| 229 | double y2 = p->y - s * d2; |
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| 230 | double z2 = p->z; |
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| 231 | pj_transform(pj_input, pj_output, 1, 1, &x2, &y2, &z2); |
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| 232 | x2 = deg(x2); |
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| 233 | y2 = deg(y2); |
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| 234 | |
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[6028fff] | 235 | // Define each passage as a multigeometry comprising of one quadrilateral |
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| 236 | // per section. This prevents invalid geometry (such as self-intersecting |
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| 237 | // polygons) being created. |
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[0939dcd] | 238 | |
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| 239 | if (!in_passage){ |
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[6028fff] | 240 | in_passage = true; |
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| 241 | fputs("<Placemark><name></name><MultiGeometry>\n", fh); |
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| 242 | } else { |
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| 243 | if (clamp_to_ground) { |
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| 244 | fputs("<Polygon>" |
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| 245 | "<outerBoundaryIs><LinearRing><coordinates>\n", fh); |
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| 246 | } else { |
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| 247 | fputs("<Polygon><altitudeMode>absolute</altitudeMode>" |
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| 248 | "<outerBoundaryIs><LinearRing><coordinates>\n", fh); |
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| 249 | } |
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[0939dcd] | 250 | |
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[6028fff] | 251 | // Draw anti-clockwise around the ring. |
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| 252 | fprintf(fh, "%.8f,%.8f,%.2f\n", v2.GetX(), v2.GetY(), v2.GetZ()); |
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| 253 | fprintf(fh, "%.8f,%.8f,%.2f\n", v1.GetX(), v1.GetY(), v1.GetZ()); |
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[0939dcd] | 254 | |
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[6028fff] | 255 | fprintf(fh, "%.8f,%.8f,%.2f\n", x1, y1, z1); |
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| 256 | fprintf(fh, "%.8f,%.8f,%.2f\n", x2, y2, z2); |
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[0939dcd] | 257 | |
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[6028fff] | 258 | // Close the ring. |
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| 259 | fprintf(fh, "%.8f,%.8f,%.2f\n", v2.GetX(), v2.GetY(), v2.GetZ()); |
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[0939dcd] | 260 | |
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[6028fff] | 261 | fputs("</coordinates></LinearRing></outerBoundaryIs>" |
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| 262 | "</Polygon>\n", fh); |
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[0939dcd] | 263 | } |
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| 264 | |
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[6028fff] | 265 | v2 = Vector3(x2, y2, z2); |
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| 266 | v1 = Vector3(x1, y1, z1); |
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[f2cb101] | 267 | } |
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| 268 | |
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| 269 | void |
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| 270 | KML::tube_end() |
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| 271 | { |
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[0939dcd] | 272 | if (in_passage){ |
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[6028fff] | 273 | fputs("</MultiGeometry></Placemark>\n", fh); |
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| 274 | in_passage = false; |
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[e63994c] | 275 | } |
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| 276 | if (in_wall) { |
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[6028fff] | 277 | fputs("</coordinates></LineString></Placemark>\n", fh); |
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| 278 | in_wall = false; |
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[f2cb101] | 279 | } |
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| 280 | } |
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| 281 | |
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[1534ed9] | 282 | void |
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| 283 | KML::label(const img_point *p, const char *s, bool /*fSurface*/, int type) |
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| 284 | { |
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| 285 | double X = p->x, Y = p->y, Z = p->z; |
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| 286 | pj_transform(pj_input, pj_output, 1, 1, &X, &Y, &Z); |
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| 287 | X = deg(X); |
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| 288 | Y = deg(Y); |
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| 289 | // %.8f is at worst just over 1mm. |
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| 290 | fprintf(fh, "<Placemark><Point><coordinates>%.8f,%.8f,%.2f</coordinates></Point><name>", X, Y, Z); |
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| 291 | html_escape(fh, s); |
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| 292 | fputs("</name>", fh); |
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| 293 | // Add a "pin" symbol with colour matching what aven shows. |
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| 294 | switch (type) { |
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| 295 | case FIXES: |
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[7aed359] | 296 | fputs("<styleUrl>#fix</styleUrl>", fh); |
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[1534ed9] | 297 | break; |
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| 298 | case EXPORTS: |
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[7aed359] | 299 | fputs("<styleUrl>#exp</styleUrl>", fh); |
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[1534ed9] | 300 | break; |
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| 301 | case ENTS: |
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[7aed359] | 302 | fputs("<styleUrl>#ent</styleUrl>", fh); |
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[1534ed9] | 303 | break; |
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| 304 | } |
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| 305 | fputs("</Placemark>\n", fh); |
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| 306 | } |
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| 307 | |
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| 308 | void |
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| 309 | KML::footer() |
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| 310 | { |
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[ae6a68c] | 311 | if (in_linestring) |
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[3b23819] | 312 | fputs("</coordinates></LineString></MultiGeometry></Placemark>\n", fh); |
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[1534ed9] | 313 | fputs("</Document></kml>\n", fh); |
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| 314 | } |
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