public function geos()
{
// If it's already been set, just return it
if ($this->geos && GeoPHP::geosInstalled()) {
return $this->geos;
}
// It hasn't been set yet, generate it
if (GeoPHP::geosInstalled()) {
$reader = new GEOSWKBReader();
$this->geos = $reader->readHEX($this->out('wkb', TRUE));
} else {
$this->geos = FALSE;
}
return $this->geos;
}
/**
* Serialize geometries into a WKT string.
*
* @param Geometry $geometry
*
* @return string The WKT string representation of the input geometries
*/
public function write(Geometry $geometry)
{
// If geos is installed, then we take a shortcut and let it write the WKT
if (GeoPHP::geosInstalled()) {
$writer = new GEOSWKTWriter();
$writer->setTrim(TRUE);
return $writer->write($geometry->geos());
}
if ($geometry->isEmpty()) {
return strtoupper($geometry->geometryType()) . ' EMPTY';
} else {
if ($data = $this->extractData($geometry)) {
return strtoupper($geometry->geometryType()) . ' (' . $data . ')';
}
}
}
static function geosToGeometry($geos)
{
if (!GeoPHP::geosInstalled()) {
return NULL;
}
$wkb_writer = new GEOSWKBWriter();
$wkb = $wkb_writer->writeHEX($geos);
$geometry = GeoPHP::load($wkb, 'wkb', TRUE);
if ($geometry) {
$geometry->setGeos($geos);
return $geometry;
}
}
