[1534ed9] | 1 | /* kml.cc |
---|
| 2 | * Export from Aven as KML. |
---|
| 3 | */ |
---|
| 4 | /* Copyright (C) 2012 Olaf Kähler |
---|
[76cf7f1] | 5 | * Copyright (C) 2012,2013,2014,2015,2016,2017,2018,2019 Olly Betts |
---|
[1534ed9] | 6 | * |
---|
| 7 | * This program is free software; you can redistribute it and/or modify |
---|
| 8 | * it under the terms of the GNU General Public License as published by |
---|
| 9 | * the Free Software Foundation; either version 2 of the License, or |
---|
| 10 | * (at your option) any later version. |
---|
| 11 | * |
---|
| 12 | * This program is distributed in the hope that it will be useful, |
---|
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 15 | * GNU General Public License for more details. |
---|
| 16 | * |
---|
| 17 | * You should have received a copy of the GNU General Public License |
---|
| 18 | * along with this program; if not, write to the Free Software |
---|
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
---|
| 20 | */ |
---|
| 21 | |
---|
[4c83f84] | 22 | #include <config.h> |
---|
[1534ed9] | 23 | |
---|
| 24 | #include "kml.h" |
---|
| 25 | |
---|
| 26 | #include "export.h" // For LABELS, etc |
---|
| 27 | |
---|
| 28 | #include <stdio.h> |
---|
| 29 | #include <string> |
---|
| 30 | #include <math.h> |
---|
| 31 | |
---|
| 32 | #include "useful.h" |
---|
[c2ea0c5] | 33 | #include <proj.h> |
---|
[1534ed9] | 34 | |
---|
| 35 | #include "aven.h" |
---|
| 36 | #include "message.h" |
---|
| 37 | |
---|
| 38 | using namespace std; |
---|
| 39 | |
---|
[297d142] | 40 | #define WGS84_DATUM_STRING "EPSG:4326" |
---|
[1534ed9] | 41 | |
---|
| 42 | static void |
---|
| 43 | html_escape(FILE *fh, const char *s) |
---|
| 44 | { |
---|
| 45 | while (*s) { |
---|
| 46 | switch (*s) { |
---|
| 47 | case '<': |
---|
| 48 | fputs("<", fh); |
---|
| 49 | break; |
---|
| 50 | case '>': |
---|
| 51 | fputs(">", fh); |
---|
| 52 | break; |
---|
| 53 | case '&': |
---|
| 54 | fputs("&", fh); |
---|
| 55 | break; |
---|
| 56 | default: |
---|
| 57 | PUTC(*s, fh); |
---|
| 58 | } |
---|
| 59 | ++s; |
---|
| 60 | } |
---|
| 61 | } |
---|
| 62 | |
---|
[c2ea0c5] | 63 | static void discarding_proj_logger(void *, int, const char *) { } |
---|
| 64 | |
---|
[32a040e] | 65 | KML::KML(const char * input_datum, bool clamp_to_ground_) |
---|
| 66 | : clamp_to_ground(clamp_to_ground_) |
---|
[1534ed9] | 67 | { |
---|
[c2ea0c5] | 68 | /* Prevent stderr spew from PROJ. */ |
---|
| 69 | proj_log_func(PJ_DEFAULT_CTX, nullptr, discarding_proj_logger); |
---|
| 70 | |
---|
| 71 | pj = proj_create_crs_to_crs(PJ_DEFAULT_CTX, |
---|
| 72 | input_datum, WGS84_DATUM_STRING, |
---|
| 73 | NULL); |
---|
[297d142] | 74 | |
---|
| 75 | if (pj) { |
---|
| 76 | // Normalise the output order so x is longitude and y latitude - by |
---|
| 77 | // default new PROJ has them switched for EPSG:4326 which just seems |
---|
| 78 | // confusing. |
---|
| 79 | PJ* pj_norm = proj_normalize_for_visualization(PJ_DEFAULT_CTX, pj); |
---|
| 80 | proj_destroy(pj); |
---|
| 81 | pj = pj_norm; |
---|
| 82 | } |
---|
| 83 | |
---|
[c2ea0c5] | 84 | if (!pj) { |
---|
[1534ed9] | 85 | wxString m = wmsg(/*Failed to initialise input coordinate system “%s”*/287); |
---|
| 86 | m = wxString::Format(m.c_str(), input_datum); |
---|
| 87 | throw m; |
---|
| 88 | } |
---|
| 89 | } |
---|
| 90 | |
---|
| 91 | KML::~KML() |
---|
| 92 | { |
---|
[c2ea0c5] | 93 | if (pj) |
---|
| 94 | proj_destroy(pj); |
---|
[1534ed9] | 95 | } |
---|
| 96 | |
---|
| 97 | const int * |
---|
| 98 | KML::passes() const |
---|
| 99 | { |
---|
[f2cb101] | 100 | static const int default_passes[] = { |
---|
[e63994c] | 101 | PASG, XSECT, WALL1, WALL2, LEGS|SURF, LABELS|ENTS|FIXES|EXPORTS, 0 |
---|
[f2cb101] | 102 | }; |
---|
[1534ed9] | 103 | return default_passes; |
---|
| 104 | } |
---|
| 105 | |
---|
| 106 | /* Initialise KML routines. */ |
---|
[55a861a] | 107 | void KML::header(const char * title, const char *, time_t, |
---|
| 108 | double, double, double, double, double, double) |
---|
[1534ed9] | 109 | { |
---|
| 110 | fputs( |
---|
| 111 | "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" |
---|
| 112 | "<kml xmlns=\"http://www.opengis.net/kml/2.2\">\n", fh); |
---|
| 113 | fputs("<Document><name>", fh); |
---|
| 114 | html_escape(fh, title); |
---|
| 115 | fputs("</name>\n", fh); |
---|
[7aed359] | 116 | // Set up styles for the icons to reduce the file size. |
---|
| 117 | fputs("<Style id=\"fix\"><IconStyle>" |
---|
[72e6593] | 118 | "<Icon><href>http://maps.google.com/mapfiles/kml/paddle/red-blank.png</href></Icon>" |
---|
[7aed359] | 119 | "</IconStyle></Style>\n", fh); |
---|
| 120 | fputs("<Style id=\"exp\"><IconStyle>" |
---|
[72e6593] | 121 | "<Icon><href>http://maps.google.com/mapfiles/kml/paddle/blu-blank.png</href></Icon>" |
---|
[7aed359] | 122 | "</IconStyle></Style>\n", fh); |
---|
| 123 | fputs("<Style id=\"ent\"><IconStyle>" |
---|
[72e6593] | 124 | "<Icon><href>http://maps.google.com/mapfiles/kml/paddle/grn-blank.png</href></Icon>" |
---|
[7aed359] | 125 | "</IconStyle></Style>\n", fh); |
---|
[1534ed9] | 126 | // FIXME: does KML allow bounds? |
---|
| 127 | // NB Lat+long bounds are not necessarily the same as the bounds in survex |
---|
| 128 | // coords translated to WGS84 lat+long... |
---|
| 129 | } |
---|
| 130 | |
---|
[f03d89e] | 131 | void |
---|
[0fe63d3] | 132 | KML::start_pass(int) |
---|
[f03d89e] | 133 | { |
---|
| 134 | if (in_linestring) { |
---|
| 135 | fputs("</coordinates></LineString></MultiGeometry></Placemark>\n", fh); |
---|
| 136 | in_linestring = false; |
---|
| 137 | } |
---|
| 138 | } |
---|
| 139 | |
---|
[1534ed9] | 140 | void |
---|
[a2c29c1] | 141 | KML::line(const img_point *p1, const img_point *p, unsigned /*flags*/, bool fPendingMove) |
---|
[1534ed9] | 142 | { |
---|
| 143 | if (fPendingMove) { |
---|
[3b23819] | 144 | if (!in_linestring) { |
---|
| 145 | in_linestring = true; |
---|
| 146 | fputs("<Placemark><MultiGeometry>\n", fh); |
---|
| 147 | } else { |
---|
| 148 | fputs("</coordinates></LineString>\n", fh); |
---|
| 149 | } |
---|
[32a040e] | 150 | if (clamp_to_ground) { |
---|
| 151 | fputs("<LineString><coordinates>\n", fh); |
---|
| 152 | } else { |
---|
| 153 | fputs("<LineString><altitudeMode>absolute</altitudeMode><coordinates>\n", fh); |
---|
| 154 | } |
---|
[c2ea0c5] | 155 | |
---|
[47b2b81] | 156 | PJ_COORD coord{{p1->x, p1->y, p1->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 157 | coord = proj_trans(pj, PJ_FWD, coord); |
---|
| 158 | if (coord.xyzt.x == HUGE_VAL || |
---|
| 159 | coord.xyzt.y == HUGE_VAL || |
---|
| 160 | coord.xyzt.z == HUGE_VAL) { |
---|
| 161 | // FIXME report errors |
---|
| 162 | } |
---|
[1534ed9] | 163 | // %.8f is at worst just over 1mm. |
---|
[c2ea0c5] | 164 | fprintf(fh, "%.8f,%.8f,%.2f\n", |
---|
| 165 | coord.xyzt.x, |
---|
| 166 | coord.xyzt.y, |
---|
| 167 | coord.xyzt.z); |
---|
| 168 | } |
---|
| 169 | |
---|
[47b2b81] | 170 | PJ_COORD coord{{p->x, p->y, p->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 171 | coord = proj_trans(pj, PJ_FWD, coord); |
---|
| 172 | if (coord.xyzt.x == HUGE_VAL || |
---|
| 173 | coord.xyzt.y == HUGE_VAL || |
---|
| 174 | coord.xyzt.z == HUGE_VAL) { |
---|
| 175 | // FIXME report errors |
---|
[1534ed9] | 176 | } |
---|
| 177 | // %.8f is at worst just over 1mm. |
---|
[c2ea0c5] | 178 | fprintf(fh, "%.8f,%.8f,%.2f\n", |
---|
| 179 | coord.xyzt.x, |
---|
| 180 | coord.xyzt.y, |
---|
| 181 | coord.xyzt.z); |
---|
[1534ed9] | 182 | } |
---|
| 183 | |
---|
[e63994c] | 184 | void |
---|
| 185 | KML::xsect(const img_point *p, double angle, double d1, double d2) |
---|
| 186 | { |
---|
[32a040e] | 187 | if (clamp_to_ground) { |
---|
| 188 | fputs("<Placemark><name></name><LineString><coordinates>", fh); |
---|
| 189 | } else { |
---|
| 190 | fputs("<Placemark><name></name><LineString><altitudeMode>absolute</altitudeMode><coordinates>", fh); |
---|
| 191 | } |
---|
[c2ea0c5] | 192 | |
---|
| 193 | double s = sin(rad(angle)); |
---|
| 194 | double c = cos(rad(angle)); |
---|
| 195 | |
---|
| 196 | { |
---|
[47b2b81] | 197 | PJ_COORD coord{{p->x + s * d1, p->y + c * d1, p->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 198 | coord = proj_trans(pj, PJ_FWD, coord); |
---|
| 199 | if (coord.xyzt.x == HUGE_VAL || |
---|
| 200 | coord.xyzt.y == HUGE_VAL || |
---|
| 201 | coord.xyzt.z == HUGE_VAL) { |
---|
| 202 | // FIXME report errors |
---|
| 203 | } |
---|
| 204 | // %.8f is at worst just over 1mm. |
---|
| 205 | fprintf(fh, "%.8f,%.8f,%.2f ", |
---|
| 206 | coord.xyzt.x, |
---|
| 207 | coord.xyzt.y, |
---|
| 208 | coord.xyzt.z); |
---|
| 209 | } |
---|
| 210 | |
---|
| 211 | { |
---|
[47b2b81] | 212 | PJ_COORD coord{{p->x - s * d2, p->y - c * d2, p->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 213 | coord = proj_trans(pj, PJ_FWD, coord); |
---|
| 214 | if (coord.xyzt.x == HUGE_VAL || |
---|
| 215 | coord.xyzt.y == HUGE_VAL || |
---|
| 216 | coord.xyzt.z == HUGE_VAL) { |
---|
| 217 | // FIXME report errors |
---|
| 218 | } |
---|
| 219 | // %.8f is at worst just over 1mm. |
---|
| 220 | fprintf(fh, "%.8f,%.8f,%.2f\n", |
---|
| 221 | coord.xyzt.x, |
---|
| 222 | coord.xyzt.y, |
---|
| 223 | coord.xyzt.z); |
---|
| 224 | } |
---|
| 225 | |
---|
[e63994c] | 226 | fputs("</coordinates></LineString></Placemark>\n", fh); |
---|
| 227 | } |
---|
| 228 | |
---|
| 229 | void |
---|
| 230 | KML::wall(const img_point *p, double angle, double d) |
---|
| 231 | { |
---|
| 232 | if (!in_wall) { |
---|
[6028fff] | 233 | if (clamp_to_ground) { |
---|
| 234 | fputs("<Placemark><name></name><LineString><coordinates>", fh); |
---|
| 235 | } else { |
---|
| 236 | fputs("<Placemark><name></name><LineString><altitudeMode>absolute</altitudeMode><coordinates>", fh); |
---|
| 237 | } |
---|
| 238 | in_wall = true; |
---|
[e63994c] | 239 | } |
---|
[c2ea0c5] | 240 | |
---|
| 241 | double s = sin(rad(angle)); |
---|
| 242 | double c = cos(rad(angle)); |
---|
| 243 | |
---|
[47b2b81] | 244 | PJ_COORD coord{{p->x + s * d, p->y + c * d, p->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 245 | coord = proj_trans(pj, PJ_FWD, coord); |
---|
| 246 | if (coord.xyzt.x == HUGE_VAL || |
---|
| 247 | coord.xyzt.y == HUGE_VAL || |
---|
| 248 | coord.xyzt.z == HUGE_VAL) { |
---|
| 249 | // FIXME report errors |
---|
| 250 | } |
---|
| 251 | // %.8f is at worst just over 1mm. |
---|
| 252 | fprintf(fh, "%.8f,%.8f,%.2f\n", |
---|
| 253 | coord.xyzt.x, |
---|
| 254 | coord.xyzt.y, |
---|
| 255 | coord.xyzt.z); |
---|
[e63994c] | 256 | } |
---|
| 257 | |
---|
[f2cb101] | 258 | void |
---|
| 259 | KML::passage(const img_point *p, double angle, double d1, double d2) |
---|
| 260 | { |
---|
| 261 | double s = sin(rad(angle)); |
---|
| 262 | double c = cos(rad(angle)); |
---|
| 263 | |
---|
[47b2b81] | 264 | PJ_COORD coord1{{p->x + s * d1, p->y + c * d1, p->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 265 | coord1 = proj_trans(pj, PJ_FWD, coord1); |
---|
| 266 | if (coord1.xyzt.x == HUGE_VAL || |
---|
| 267 | coord1.xyzt.y == HUGE_VAL || |
---|
| 268 | coord1.xyzt.z == HUGE_VAL) { |
---|
| 269 | // FIXME report errors |
---|
| 270 | } |
---|
| 271 | double x1 = coord1.xyzt.x; |
---|
| 272 | double y1 = coord1.xyzt.y; |
---|
| 273 | double z1 = coord1.xyzt.z; |
---|
| 274 | |
---|
[47b2b81] | 275 | PJ_COORD coord2{{p->x - s * d2, p->y - c * d2, p->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 276 | coord2 = proj_trans(pj, PJ_FWD, coord2); |
---|
| 277 | if (coord2.xyzt.x == HUGE_VAL || |
---|
| 278 | coord2.xyzt.y == HUGE_VAL || |
---|
| 279 | coord2.xyzt.z == HUGE_VAL) { |
---|
| 280 | // FIXME report errors |
---|
| 281 | } |
---|
| 282 | double x2 = coord2.xyzt.x; |
---|
| 283 | double y2 = coord2.xyzt.y; |
---|
| 284 | double z2 = coord2.xyzt.z; |
---|
[f2cb101] | 285 | |
---|
[6028fff] | 286 | // Define each passage as a multigeometry comprising of one quadrilateral |
---|
| 287 | // per section. This prevents invalid geometry (such as self-intersecting |
---|
| 288 | // polygons) being created. |
---|
[0939dcd] | 289 | |
---|
| 290 | if (!in_passage){ |
---|
[6028fff] | 291 | in_passage = true; |
---|
| 292 | fputs("<Placemark><name></name><MultiGeometry>\n", fh); |
---|
| 293 | } else { |
---|
| 294 | if (clamp_to_ground) { |
---|
| 295 | fputs("<Polygon>" |
---|
| 296 | "<outerBoundaryIs><LinearRing><coordinates>\n", fh); |
---|
| 297 | } else { |
---|
| 298 | fputs("<Polygon><altitudeMode>absolute</altitudeMode>" |
---|
| 299 | "<outerBoundaryIs><LinearRing><coordinates>\n", fh); |
---|
| 300 | } |
---|
[0939dcd] | 301 | |
---|
[6028fff] | 302 | // Draw anti-clockwise around the ring. |
---|
| 303 | fprintf(fh, "%.8f,%.8f,%.2f\n", v2.GetX(), v2.GetY(), v2.GetZ()); |
---|
| 304 | fprintf(fh, "%.8f,%.8f,%.2f\n", v1.GetX(), v1.GetY(), v1.GetZ()); |
---|
[0939dcd] | 305 | |
---|
[6028fff] | 306 | fprintf(fh, "%.8f,%.8f,%.2f\n", x1, y1, z1); |
---|
| 307 | fprintf(fh, "%.8f,%.8f,%.2f\n", x2, y2, z2); |
---|
[0939dcd] | 308 | |
---|
[6028fff] | 309 | // Close the ring. |
---|
| 310 | fprintf(fh, "%.8f,%.8f,%.2f\n", v2.GetX(), v2.GetY(), v2.GetZ()); |
---|
[0939dcd] | 311 | |
---|
[6028fff] | 312 | fputs("</coordinates></LinearRing></outerBoundaryIs>" |
---|
| 313 | "</Polygon>\n", fh); |
---|
[0939dcd] | 314 | } |
---|
| 315 | |
---|
[6028fff] | 316 | v2 = Vector3(x2, y2, z2); |
---|
| 317 | v1 = Vector3(x1, y1, z1); |
---|
[f2cb101] | 318 | } |
---|
| 319 | |
---|
| 320 | void |
---|
| 321 | KML::tube_end() |
---|
| 322 | { |
---|
[0939dcd] | 323 | if (in_passage){ |
---|
[6028fff] | 324 | fputs("</MultiGeometry></Placemark>\n", fh); |
---|
| 325 | in_passage = false; |
---|
[e63994c] | 326 | } |
---|
| 327 | if (in_wall) { |
---|
[6028fff] | 328 | fputs("</coordinates></LineString></Placemark>\n", fh); |
---|
| 329 | in_wall = false; |
---|
[f2cb101] | 330 | } |
---|
| 331 | } |
---|
| 332 | |
---|
[1534ed9] | 333 | void |
---|
[8c4cefb] | 334 | KML::label(const img_point *p, const wxString& str, bool /*fSurface*/, int type) |
---|
[1534ed9] | 335 | { |
---|
[8c4cefb] | 336 | const char* s = str.utf8_str(); |
---|
[47b2b81] | 337 | PJ_COORD coord{{p->x, p->y, p->z, HUGE_VAL}}; |
---|
[c2ea0c5] | 338 | coord = proj_trans(pj, PJ_FWD, coord); |
---|
| 339 | if (coord.xyzt.x == HUGE_VAL || |
---|
| 340 | coord.xyzt.y == HUGE_VAL || |
---|
| 341 | coord.xyzt.z == HUGE_VAL) { |
---|
| 342 | // FIXME report errors |
---|
| 343 | } |
---|
[1534ed9] | 344 | // %.8f is at worst just over 1mm. |
---|
[c2ea0c5] | 345 | fprintf(fh, "<Placemark><Point><coordinates>%.8f,%.8f,%.2f</coordinates></Point><name>", |
---|
| 346 | coord.xyzt.x, |
---|
| 347 | coord.xyzt.y, |
---|
| 348 | coord.xyzt.z); |
---|
[1534ed9] | 349 | html_escape(fh, s); |
---|
| 350 | fputs("</name>", fh); |
---|
| 351 | // Add a "pin" symbol with colour matching what aven shows. |
---|
| 352 | switch (type) { |
---|
| 353 | case FIXES: |
---|
[7aed359] | 354 | fputs("<styleUrl>#fix</styleUrl>", fh); |
---|
[1534ed9] | 355 | break; |
---|
| 356 | case EXPORTS: |
---|
[7aed359] | 357 | fputs("<styleUrl>#exp</styleUrl>", fh); |
---|
[1534ed9] | 358 | break; |
---|
| 359 | case ENTS: |
---|
[7aed359] | 360 | fputs("<styleUrl>#ent</styleUrl>", fh); |
---|
[1534ed9] | 361 | break; |
---|
| 362 | } |
---|
| 363 | fputs("</Placemark>\n", fh); |
---|
| 364 | } |
---|
| 365 | |
---|
| 366 | void |
---|
| 367 | KML::footer() |
---|
| 368 | { |
---|
[ae6a68c] | 369 | if (in_linestring) |
---|
[3b23819] | 370 | fputs("</coordinates></LineString></MultiGeometry></Placemark>\n", fh); |
---|
[1534ed9] | 371 | fputs("</Document></kml>\n", fh); |
---|
| 372 | } |
---|