public function geos()
{
// If it's already been set, just return it
if ($this->geos && FOX_geo::geosInstalled()) {
return $this->geos;
}
// It hasn't been set yet, generate it
if (FOX_geo::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(FOX_geometry $geometry)
{
// If geos is installed, then we take a shortcut and let it write the WKT
if (FOX_geo::geosInstalled()) {
$writer = new GEOSWKTWriter();
$writer->setTrim(true);
return $writer->write($geometry->geos());
}
if ($geometry->isEmpty()) {
return strtoupper($geometry->geometryType()) . ' EMPTY';
} else {
$data = $this->extractData($geometry);
if ($data) {
return strtoupper($geometry->geometryType()) . ' (' . $data . ')';
} else {
return null;
}
}
}