protected function getCurrentScale()
{
if ($this->unitsPerMeter === null) {
$this->unitsPerMeter = self::NO_PROJECTION;
$projRep = new MapProjection($this->mapProjection);
if (!$projRep->isGeographic()) {
$unitsPerMeter = $projRep->getUnitsPerMeter();
if ($unitsPerMeter) {
$this->unitsPerMeter = $unitsPerMeter;
}
}
}
if ($this->unitsPerMeter != self::NO_PROJECTION) {
$metersPerPixel = $this->getHorizontalRange() / $this->imageWidth / $this->unitsPerMeter;
return $metersPerPixel / self::LIFE_SIZE_METERS_PER_PIXEL;
} else {
$range = $this->getHorizontalRange();
$zoomLevel = ceil(log(360 / $range, 2));
return oldPixelScaleForZoomLevel($zoomLevel);
}
}
public function projectPoint($point) {
list($x, $y) = self::getXYFromPoint($point);
error_log("projecting $x, $y");
if ($this->srcProj == $this->dstProj) {
return array('lon' => $x, 'lat' => $y);
}
$result = $point;
if ($this->srcProjSpec) {
$fromProjection = new MapProjection($this->srcProjSpec);
if (!$fromProjection->isGeographic()) {
$fromProjection->setXY(array('x' => $x, 'y' => $y));
$result = $fromProjection->getLatLon();
}
}
if ($this->dstProjSpec) {
$toProjection = new MapProjection($this->dstProjSpec);
if (!$toProjection->isGeographic()) {
list($x, $y) = self::getXYFromPoint($result);
$toProjection->setLatLon(array('lon' => $x, 'lat' => $y));
$result = $toProjection->getXY();
}
}
list($x, $y) = self::getXYFromPoint($result);
error_log("result: $x, $y");
return $result;
}
