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88564339 AS |
1 | <?php |
2 | /** | |
3 | * gpxwriter.php | |
4 | * | |
5 | * Copyright 2018 Andy Street <andy@street.me.uk> | |
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 Street, Fifth Floor, Boston, | |
20 | * MA 02110-1301, USA. | |
21 | * | |
22 | * | |
23 | */ | |
24 | ||
25 | namespace libgpx; | |
26 | ||
27 | use \DateTime; | |
28 | use \DateTimeInterface; | |
29 | use \DateTimeZone; | |
30 | use \RuntimeException; | |
31 | use \UnexpectedValueException; | |
32 | use \XMLWriter; | |
33 | ||
34 | /** | |
35 | * Write GPX files. | |
36 | * | |
37 | * @author Andy Street <andy@street.me.uk> | |
38 | */ | |
39 | class GPXWriter | |
40 | { | |
41 | ||
42 | /** | |
43 | * Who to credit as the document creator in the GPX root element. | |
44 | * | |
45 | * @var string | |
46 | * @see http://www.topografix.com/GPX/1/1/#type_gpxType | |
47 | */ | |
48 | protected $creator = 'libgpx'; | |
49 | ||
50 | /** | |
51 | * The version of the GPX standard to generate. | |
52 | * | |
53 | * @var string | |
54 | */ | |
55 | protected $format = '1.1'; | |
56 | ||
57 | /** | |
58 | * Whether to indent the XML output for readability. | |
59 | * | |
60 | * @var boolean | |
61 | */ | |
62 | protected $indent = true; | |
63 | ||
64 | /** | |
65 | * Whether to include milliseconds in timestamps. | |
66 | * | |
67 | * @var boolean | |
68 | */ | |
69 | protected $milliseconds = true; | |
70 | ||
71 | /** | |
72 | * Fetch the name credited as the creator of the XML files. | |
73 | * | |
74 | * @return string The creator. | |
75 | */ | |
76 | public function getCreator() | |
77 | { | |
78 | return $this->creator; | |
79 | } | |
80 | ||
81 | /** | |
82 | * Set the name to be credited as the XML document creator. | |
83 | * | |
84 | * @param string $creator The name to credit as the creator. | |
85 | * @return void | |
86 | */ | |
87 | public function setCreator(string $creator) | |
88 | { | |
89 | $this->creator = $creator; | |
90 | } | |
91 | ||
92 | /** | |
93 | * Fetch the GPX file format that this class generates. | |
94 | * | |
95 | * @return string The GPX file format. | |
96 | */ | |
97 | public function getFormat() | |
98 | { | |
99 | return $this->format; | |
100 | } | |
101 | ||
102 | /** | |
103 | * Set the GPX file format that this class generates. | |
104 | * | |
105 | * @param string $format Accepted values are "1.0" or "1.1". | |
106 | * @return void | |
107 | * @throws UnexpectedValueException If $format is not a known GPX version. | |
108 | */ | |
109 | public function setFormat(string $format) | |
110 | { | |
111 | switch ($format) { | |
112 | case '1.0': | |
113 | case '1.1': | |
114 | $this->format = $format; | |
115 | break; | |
116 | default: | |
117 | throw new UnexpectedValueException( | |
118 | sprintf('Unknown GPX version "%s"', $format) | |
119 | ); | |
120 | } | |
121 | } | |
122 | ||
123 | /** | |
124 | * Whether this class will indent output for readability. | |
125 | * | |
126 | * @return boolean If the output will be indented. | |
127 | */ | |
128 | public function getIndent() | |
129 | { | |
130 | return $this->indent; | |
131 | } | |
132 | ||
133 | /** | |
134 | * Set whether to indent output for readability. | |
135 | * | |
136 | * @param boolean $indent Whether to indent. | |
137 | * @return void | |
138 | */ | |
139 | public function setIndent(bool $indent) | |
140 | { | |
141 | $this->indent = $indent; | |
142 | } | |
143 | ||
144 | /** | |
145 | * Whether timestamps are written to include milliseconds. | |
146 | * | |
147 | * @return boolean | |
148 | */ | |
149 | public function getTimestampUseMilliseconds() | |
150 | { | |
151 | return $this->milliseconds; | |
152 | } | |
153 | ||
154 | /** | |
155 | * Set whether to output milliseconds in timestamps. | |
156 | * | |
157 | * @param boolean $milliseconds Whether to use milliseconds. | |
158 | * @return void | |
159 | */ | |
160 | public function setTimestampUseMilliseconds(bool $milliseconds) | |
161 | { | |
162 | $this->milliseconds = $milliseconds; | |
163 | } | |
164 | ||
165 | /** | |
166 | * Fetch an XML representation as a string. | |
167 | * | |
168 | * @param GPX $gpx The source for the XML. | |
169 | * @return string An XML representation of the GPX object. | |
170 | */ | |
171 | public function fetch(GPX $gpx) | |
172 | { | |
173 | $xml = new XMLWriter(); | |
174 | $xml->openMemory(); | |
175 | $this->write($gpx, $xml); | |
176 | return $xml->outputMemory(); | |
177 | } | |
178 | ||
179 | /** | |
180 | * Write XML to standard out. | |
181 | * | |
182 | * @param GPX $gpx The source for the XML. | |
183 | * @return void | |
184 | */ | |
185 | public function output(GPX $gpx) | |
186 | { | |
187 | $xml = new XMLWriter(); | |
188 | $xml->openURI('php://output'); | |
189 | $this->write($gpx, $xml); | |
43086e87 | 190 | $xml->flush(); |
88564339 AS |
191 | } |
192 | ||
193 | /** | |
194 | * Write XML to a file. | |
195 | * | |
196 | * @param GPX $gpx The source for the XML. | |
197 | * @param string $filename Where to write the XML. | |
198 | * @return void | |
199 | * @throws RuntimeException If the file cannot be written to. | |
200 | */ | |
201 | public function save(GPX $gpx, string $filename) | |
202 | { | |
203 | $xml = new XMLWriter(); | |
43086e87 | 204 | if (!$xml->openURI($filename)) |
88564339 AS |
205 | throw RuntimeException(sprintf('Unable to write to "%s"', $filename)); |
206 | $this->write($gpx, $xml); | |
43086e87 | 207 | $xml->flush(); |
88564339 AS |
208 | } |
209 | ||
210 | /** | |
211 | * Generate the XML. | |
212 | * | |
213 | * @param GPX $gpx The source for the XML. | |
214 | * @param XMLWriter $xml The instance to use to generate the XML. | |
215 | * @return void | |
216 | */ | |
217 | protected function write(GPX $gpx, XMLWriter $xml) | |
218 | { | |
219 | $xml->setIndent($this->indent); | |
220 | $xml->startDocument('1.0', 'UTF-8'); | |
221 | if ($this->format == '1.1') { | |
222 | $namespace = libgpx::NAMESPACE_GPX_1_1; | |
223 | $schema = libgpx::SCHEMA_GPX_1_1; | |
224 | } else { | |
225 | $namespace = libgpx::NAMESPACE_GPX_1_0; | |
226 | $schema = libgpx::SCHEMA_GPX_1_0; | |
227 | } | |
228 | $xml->startElementNs(null, 'gpx', $namespace); | |
229 | $xml->writeAttribute('version', $this->format); | |
230 | $xml->writeAttribute('creator', $this->creator); | |
231 | $xml->writeAttributeNS( | |
232 | 'xsi', | |
233 | 'schemaLocation', | |
234 | libgpx::NAMESPACE_XMLSCHEMA, | |
235 | $namespace . ' ' . $schema | |
236 | ); | |
237 | $this->writeMetadata($gpx, $xml); | |
57c75891 AS |
238 | $waypoints = $gpx->getWaypoints(false); |
239 | if ($waypoints !== null) { | |
240 | foreach ($waypoints as $wpt) { | |
241 | $this->writePoint($wpt, 'wpt', $xml); | |
242 | } | |
f528d248 | 243 | } |
f17d2566 AS |
244 | $routes = $gpx->getRoutes(false); |
245 | if ($routes !== null) { | |
246 | foreach ($routes as $route) { | |
247 | $this->writeRoute($route, $xml); | |
248 | } | |
249 | } | |
35c309cc AS |
250 | $tracks = $gpx->getTracks(false); |
251 | if ($tracks !== null) { | |
252 | foreach ($tracks as $track) { | |
253 | $this->writeTrack($track, $xml); | |
254 | } | |
255 | } | |
e0c26559 AS |
256 | $extensions = $gpx->getExtensions(false); |
257 | if ($extensions !== null && !$extensions->isEmpty()) { | |
258 | if ($this->format == '1.1') | |
259 | $xml->startElement('extensions'); | |
260 | foreach ($extensions as $extension) { | |
261 | $xml->writeRaw($extension); | |
262 | } | |
263 | if ($this->format == '1.1') | |
264 | $xml->endElement(); | |
265 | } | |
88564339 AS |
266 | $xml->endElement(); |
267 | $xml->endDocument(); | |
88564339 AS |
268 | } |
269 | ||
270 | /** | |
271 | * Generate XML for Metadata elements. | |
272 | * | |
273 | * @param GPX $gpx The object to source the metadata from. | |
274 | * @param XMLWriter $xml Where to write the metadata. | |
275 | * @return void | |
276 | */ | |
277 | protected function writeMetadata(GPX $gpx, XMLWriter $xml) | |
278 | { | |
279 | if ($this->format == '1.1') | |
280 | $xml->startElement('metadata'); | |
281 | $name = $gpx->getName(); | |
282 | if (!empty($name)) | |
283 | $xml->writeElement('name', $name); | |
284 | $desc = $gpx->getDesc(); | |
285 | if (!empty($desc)) | |
286 | $xml->writeElement('desc', $desc); | |
287 | $author = $gpx->getAuthor(); | |
288 | if ($author instanceof Person) | |
289 | $this->writePerson($author, $xml); | |
290 | if ($this->format == '1.1') { | |
291 | $copyright = $gpx->getCopyright(); | |
292 | if ($copyright instanceof Copyright) | |
293 | $this->writeCopyright($copyright, $xml); | |
294 | } | |
57c75891 AS |
295 | $links = $gpx->getLinks(false); |
296 | if ($links !== null) { | |
297 | foreach($links as $link) { | |
298 | $this->writeLink($link, $xml); | |
299 | if ($this->format == '1.0') | |
300 | break; | |
301 | } | |
88564339 AS |
302 | } |
303 | $xml->writeElement('time', $this->createTimestamp(new DateTime())); | |
57c75891 AS |
304 | $keywords = $gpx->getKeywords(false); |
305 | if ($keywords !== null && !$keywords->isEmpty()) | |
7c465a82 AS |
306 | $xml->writeElement( |
307 | 'keywords', | |
308 | implode(', ', $gpx->getKeywords()->toArray()) | |
309 | ); | |
88564339 AS |
310 | $bounds = $gpx->getBounds(); |
311 | if ($bounds instanceof Bounds) { | |
312 | $xml->startElement('bounds'); | |
313 | $xml->writeAttribute('minlat', $bounds->getMinLat()); | |
314 | $xml->writeAttribute('minlon', $bounds->getMinLon()); | |
315 | $xml->writeAttribute('maxlat', $bounds->getMaxLat()); | |
316 | $xml->writeAttribute('maxlon', $bounds->getMaxLon()); | |
317 | $xml->endElement(); | |
318 | } | |
7c465a82 | 319 | if ($this->format == '1.1') { |
57c75891 AS |
320 | $extensions = $gpx->getMetadataExtensions(false); |
321 | if ($extensions !== null && !$extensions->isEmpty()) { | |
7c465a82 AS |
322 | $xml->startElement('extensions'); |
323 | foreach ($extensions as $extension) { | |
324 | $xml->writeRaw($extension); | |
325 | } | |
326 | $xml->endElement(); | |
327 | } | |
328 | $xml->endElement(); // </metadata> | |
329 | } | |
88564339 AS |
330 | } |
331 | ||
332 | /** | |
333 | * Generate XML for GPX Person type. | |
334 | * | |
335 | * @param Person $person The person object to source data from. | |
336 | * @param XMLWriter $xml Where to write the data. | |
337 | * @return void | |
338 | */ | |
339 | protected function writePerson(Person $person, XMLWriter $xml) | |
340 | { | |
341 | if ($this->format == '1.1') { | |
342 | $xml->startElement('author'); | |
343 | $name = $person->getName(); | |
344 | if (!empty($name)) | |
345 | $xml->writeElement('name', $name); | |
346 | $email = $person->getEmail(); | |
347 | if (!empty($email)) { | |
348 | $email = explode('@', $email, 2); | |
349 | $xml->startElement('email'); | |
350 | $xml->writeAttribute('id', $email[0]); | |
351 | $xml->writeAttribute('domain', $email[1]); | |
352 | $xml->endElement(); | |
353 | } | |
354 | $link = $person->getLink(); | |
355 | if (!empty($link)) | |
356 | $this->writeLink($link, $xml); | |
357 | $xml->endElement(); | |
358 | } else { | |
359 | $name = $person->getName(); | |
360 | if (!empty($name)) | |
361 | $xml->writeElement('author', $name); | |
362 | $email = $person->getEmail(); | |
363 | if (!empty($email)) | |
364 | $xml->writeElement('email', $email); | |
365 | } | |
366 | } | |
367 | ||
368 | /** | |
369 | * Generate XML for a GPX Link type. | |
370 | * | |
371 | * @param Link $link The link object to source data from. | |
372 | * @param XMLWriter $xml Where to write the data. | |
373 | * @return void | |
374 | */ | |
375 | protected function writeLink(Link $link, XMLWriter $xml) | |
376 | { | |
377 | if ($this->format == '1.1') { | |
378 | $xml->startElement('link'); | |
379 | $xml->writeAttribute('href', $link->getHref()); | |
380 | $text = $link->getText(); | |
381 | if (!empty($text)) | |
382 | $xml->writeElement('text', $text); | |
383 | $type = $link->getType(); | |
384 | if (!empty($type)) | |
385 | $xml->writeElement('type', $type); | |
386 | $xml->endElement(); | |
387 | } else { | |
388 | $xml->writeElement('url', $link->getHref()); | |
389 | $text = $link->getText(); | |
390 | if (!empty($text)) | |
391 | $xml->writeElement('urlname', $text); | |
392 | } | |
393 | } | |
394 | ||
395 | /** | |
396 | * Generate XML for GPX Copyright type. | |
397 | * | |
398 | * @param Copyright $copyright Object to source copyright data from. | |
399 | * @param XMLWriter $xml Where to write the data. | |
400 | * @return void | |
401 | */ | |
402 | protected function writeCopyright(Copyright $copyright, XMLWriter $xml) | |
403 | { | |
404 | $xml->startElement('copyright'); | |
405 | $xml->writeAttribute('author', $copyright->getAuthor()); | |
406 | $year = $copyright->getYear(); | |
407 | if (!empty($year)) | |
408 | $xml->writeElement('year', $year); | |
409 | $license = $copyright->getLicense(); | |
410 | if (!empty($license)) | |
411 | $xml->writeElement('license', $license); | |
412 | $xml->endElement(); | |
413 | } | |
414 | ||
415 | /** | |
416 | * Create an ISO 8601 timestamp. | |
417 | * | |
418 | * @param DateTimeInterface $timestamp The timestamp to format. | |
419 | * @param boolean $millis Include milliseconds. | |
420 | * @return string A timestamp. | |
421 | */ | |
422 | protected function createTimestamp( | |
423 | DateTimeInterface $timestamp, | |
424 | bool $millis = null | |
425 | ) { | |
426 | if ($millis === null) | |
427 | $millis = $this->milliseconds; | |
428 | if (!$timestamp->getTimezone()->getOffset($timestamp)) | |
429 | $timestamp = $timestamp->setTimezone(new DateTimeZone('UTC')); | |
430 | $format = 'Y-m-d\TH:i:s' . ($millis ? '.v\Z' : '\Z'); | |
431 | return $timestamp->format($format); | |
432 | } | |
433 | ||
09a36623 | 434 | /** |
43086e87 | 435 | * Generate XML for GPX wpt type. |
09a36623 | 436 | * |
43086e87 AS |
437 | * @param Point $point The point to write. |
438 | * @param string $element The XML element name (e.g. <wpt>) | |
439 | * @param XMLWriter $xml Where to write the point. | |
09a36623 AS |
440 | * @return void |
441 | */ | |
43086e87 | 442 | protected function writePoint(Point $point, string $element, XMLWriter $xml) |
09a36623 | 443 | { |
43086e87 AS |
444 | $xml->startElement($element); |
445 | $xml->writeAttribute('lat', $point->getLatitude()); | |
446 | $xml->writeAttribute('lon', $point->getLongitude()); | |
447 | $var = $point->getEle(); | |
448 | if ($var !== null) | |
449 | $xml->writeElement('ele', $var); | |
450 | $var = $point->getTime(); | |
451 | if ($var !== null) | |
452 | $xml->writeElement('time', $this->createTimestamp($var)); | |
453 | $var = $point->getMagvar(); | |
454 | if ($var !== null) | |
455 | $xml->writeElement('magvar', $var); | |
456 | $var = $point->getGeoidHeight(); | |
457 | if ($var !== null) | |
458 | $xml->writeElement('geoidheight', $var); | |
459 | $var = $point->getName(); | |
09a36623 AS |
460 | if ($var !== null) |
461 | $xml->writeElement('name', $var); | |
43086e87 | 462 | $var = $point->getComment(); |
09a36623 AS |
463 | if ($var !== null) |
464 | $xml->writeElement('cmt', $var); | |
43086e87 | 465 | $var = $point->getDescription(); |
09a36623 AS |
466 | if ($var !== null) |
467 | $xml->writeElement('desc', $var); | |
43086e87 | 468 | $var = $point->getSource(); |
09a36623 AS |
469 | if ($var !== null) |
470 | $xml->writeElement('src', $var); | |
43086e87 | 471 | $var = $point->getLinks(false); |
09a36623 AS |
472 | if ($var !== null) { |
473 | foreach($var as $link) { | |
474 | $this->writeLink($link, $xml); | |
475 | if ($this->format == '1.0') | |
476 | break; | |
477 | } | |
478 | } | |
f528d248 AS |
479 | $var = $point->getSymbol(); |
480 | if ($var !== null) | |
481 | $xml->writeElement('sym', $var); | |
43086e87 AS |
482 | $var = $point->getType(); |
483 | if ($var !== null) | |
484 | $xml->writeElement('type', $var); | |
f528d248 AS |
485 | $var = $point->getFix(); |
486 | if ($var !== null) | |
487 | $xml->writeElement('fix', $var); | |
488 | $var = $point->getSatellites(); | |
489 | if ($var !== null) | |
490 | $xml->writeElement('sat', $var); | |
491 | $var = $point->getHdop(); | |
492 | if ($var !== null) | |
493 | $xml->writeElement('hdop', $var); | |
494 | $var = $point->getVdop(); | |
495 | if ($var !== null) | |
496 | $xml->writeElement('vdop', $var); | |
497 | $var = $point->getPdop(); | |
498 | if ($var !== null) | |
499 | $xml->writeElement('pdop', $var); | |
500 | $var = $point->getAgeOfDGPSData(); | |
501 | if ($var !== null) | |
502 | $xml->writeElement('ageofdgpsdata', $var); | |
503 | $var = $point->getDGPSId(); | |
504 | if ($var !== null) | |
505 | $xml->writeElement('dgpsid', $var); | |
43086e87 AS |
506 | $var = $point->getExtensions(false); |
507 | if ($var !== null && !$var->isEmpty()) { | |
508 | if ($this->format == '1.1') | |
509 | $xml->startElement('extensions'); | |
510 | foreach ($var as $extension) { | |
511 | $xml->writeRaw($extension); | |
512 | } | |
513 | if ($this->format == '1.1') | |
514 | $xml->endElement(); | |
515 | } | |
f528d248 AS |
516 | $xml->endElement(); |
517 | } | |
518 | ||
f17d2566 AS |
519 | /** |
520 | * Write XML for a route element. | |
521 | * | |
522 | * @param Route $route The route to write. | |
523 | * @param XMLWriter $xml Where to write. | |
35c309cc | 524 | * @return void |
f17d2566 AS |
525 | */ |
526 | protected function writeRoute(Route $route, XMLWriter $xml) | |
527 | { | |
528 | $xml->startElement('rte'); | |
43086e87 AS |
529 | $var = $route->getName(); |
530 | if ($var !== null) | |
531 | $xml->writeElement('name', $var); | |
532 | $var = $route->getComment(); | |
533 | if ($var !== null) | |
534 | $xml->writeElement('cmt', $var); | |
535 | $var = $route->getDescription(); | |
536 | if ($var !== null) | |
537 | $xml->writeElement('desc', $var); | |
538 | $var = $route->getSource(); | |
539 | if ($var !== null) | |
540 | $xml->writeElement('src', $var); | |
541 | $var = $route->getLinks(false); | |
542 | if ($var !== null) { | |
543 | foreach($var as $link) { | |
544 | $this->writeLink($link, $xml); | |
545 | if ($this->format == '1.0') | |
546 | break; | |
547 | } | |
548 | } | |
f17d2566 AS |
549 | $var = $route->getNumber(); |
550 | if ($var !== null) | |
551 | $xml->writeElement('number', $var); | |
43086e87 AS |
552 | if ($this->format == '1.1') { |
553 | $var = $route->getType(); | |
554 | if ($var !== null) | |
555 | $xml->writeElement('type', $var); | |
556 | } | |
557 | $var = $route->getExtensions(false); | |
558 | if ($var !== null && !$var->isEmpty()) { | |
559 | if ($this->format == '1.1') | |
560 | $xml->startElement('extensions'); | |
561 | foreach ($var as $extension) { | |
562 | $xml->writeRaw($extension); | |
563 | } | |
564 | if ($this->format == '1.1') | |
565 | $xml->endElement(); | |
566 | } | |
f17d2566 AS |
567 | $var = $route->getPoints(false); |
568 | if ($var !== null) { | |
569 | foreach ($var as $point) { | |
570 | $this->writePoint($point, 'rtept', $xml); | |
571 | } | |
572 | } | |
573 | $xml->endElement(); | |
574 | } | |
575 | ||
35c309cc AS |
576 | /** |
577 | * Write XML for a track element. | |
578 | * | |
579 | * @param Track $track The track to write. | |
580 | * @param XMLWriter $xml Where to write. | |
581 | * @return void | |
582 | */ | |
583 | protected function writeTrack(Track $track, XMLWriter $xml) | |
584 | { | |
585 | $xml->startElement('trk'); | |
43086e87 AS |
586 | $var = $track->getName(); |
587 | if ($var !== null) | |
588 | $xml->writeElement('name', $var); | |
589 | $var = $track->getComment(); | |
590 | if ($var !== null) | |
591 | $xml->writeElement('cmt', $var); | |
592 | $var = $track->getDescription(); | |
593 | if ($var !== null) | |
594 | $xml->writeElement('desc', $var); | |
595 | $var = $track->getSource(); | |
596 | if ($var !== null) | |
597 | $xml->writeElement('src', $var); | |
598 | $var = $track->getLinks(false); | |
599 | if ($var !== null) { | |
600 | foreach($var as $link) { | |
601 | $this->writeLink($link, $xml); | |
602 | if ($this->format == '1.0') | |
603 | break; | |
604 | } | |
605 | } | |
35c309cc AS |
606 | $var = $track->getNumber(); |
607 | if ($var !== null) | |
608 | $xml->writeElement('number', $var); | |
43086e87 AS |
609 | if ($this->format == '1.1') { |
610 | $var = $track->getType(); | |
611 | if ($var !== null) | |
612 | $xml->writeElement('type', $var); | |
613 | } | |
614 | $var = $track->getExtensions(false); | |
615 | if ($var !== null && !$var->isEmpty()) { | |
616 | if ($this->format == '1.1') | |
617 | $xml->startElement('extensions'); | |
618 | foreach ($var as $extension) { | |
619 | $xml->writeRaw($extension); | |
620 | } | |
621 | if ($this->format == '1.1') | |
622 | $xml->endElement(); | |
623 | } | |
35c309cc AS |
624 | $var = $track->getSegments(false); |
625 | if ($var !== null) { | |
626 | foreach ($var as $segment) { | |
627 | $this->writeTrackSegment($segment, $xml); | |
628 | } | |
629 | } | |
630 | $xml->endElement(); | |
631 | } | |
632 | ||
633 | /** | |
634 | * Write XML for a track segment element. | |
635 | * | |
636 | * @param TrackSegment $segment The segment to write. | |
637 | * @param XMLWriter $xml Where to write. | |
638 | * @return void | |
639 | */ | |
640 | protected function writeTrackSegment(TrackSegment $segment, XMLWriter $xml) | |
641 | { | |
642 | $xml->startElement('trkseg'); | |
643 | $var = $segment->getPoints(false); | |
644 | if ($var !== null) { | |
645 | foreach ($var as $point) { | |
646 | $this->writePoint($point, 'trkpt', $xml); | |
647 | } | |
648 | } | |
649 | if ($this->format == '1.1') { | |
650 | $var = $segment->getExtensions(false); | |
43086e87 | 651 | if ($var !== null && !$var->isEmpty()) { |
35c309cc AS |
652 | $xml->startElement('extensions'); |
653 | foreach ($var as $extension) { | |
654 | $xml->writeRaw($extension); | |
655 | } | |
656 | $xml->endElement(); | |
657 | } | |
658 | } | |
659 | $xml->endElement(); | |
660 | } | |
661 | ||
88564339 | 662 | } |