public function GetLayerKml($resId, $format = "kml")
{
//Check for unsupported representations
$fmt = $this->ValidateRepresentation($format, array("kml", "kmz"));
$width = $this->GetRequestParameter("width", null);
$height = $this->GetRequestParameter("height", null);
$drawOrder = $this->GetRequestParameter("draworder", null);
$dpi = $this->GetRequestParameter("dpi", 96);
$bbox = $this->GetRequestParameter("bbox", null);
$extents = null;
if ($width == null) {
$this->BadRequest($this->app->localizer->getText("E_MISSING_REQUIRED_PARAMETER", "width"), $this->GetMimeTypeForFormat($format));
}
if ($height == null) {
$this->BadRequest($this->app->localizer->getText("E_MISSING_REQUIRED_PARAMETER", "height"), $this->GetMimeTypeForFormat($format));
}
if ($drawOrder == null) {
$this->BadRequest($this->app->localizer->getText("E_MISSING_REQUIRED_PARAMETER", "draworder"), $this->GetMimeTypeForFormat($format));
}
if ($bbox == null) {
$this->BadRequest($this->app->localizer->getText("E_MISSING_REQUIRED_PARAMETER", "bbox"), $this->GetMimeTypeForFormat($format));
} else {
$parts = explode(",", $bbox);
if (count($parts) == 4) {
$extents = new MgEnvelope($parts[0], $parts[1], $parts[2], $parts[3]);
}
}
$sessionId = "";
if ($resId->GetRepositoryType() == MgRepositoryType::Session) {
$sessionId = $resId->GetRepositoryName();
} else {
$sessionId = $this->GetRequestParameter("session", "");
}
$this->EnsureAuthenticationForSite($sessionId, true);
$siteConn = new MgSiteConnection();
if ($sessionId !== "") {
$userInfo = new MgUserInformation($sessionId);
$siteConn->Open($userInfo);
} else {
$siteConn->Open($this->userInfo);
$site = $siteConn->GetSite();
$sessionId = $site->CreateSession();
$userInfo = new MgUserInformation($sessionId);
$siteConn->Open($userInfo);
}
$csFactory = new MgCoordinateSystemFactory();
$csObj = $csFactory->CreateFromCode("LL84");
$scale = MgUtils::GetScale($extents, $csObj, $width, $height, $dpi);
$writer = new MgSlimChunkWriter($this->app);
$doc = new MgKmlDocument($writer);
$resSvc = $siteConn->CreateService(MgServiceType::ResourceService);
$featSvc = $siteConn->CreateService(MgServiceType::FeatureService);
$ldfContent = $resSvc->GetResourceContent($resId);
$xml = new DOMDocument();
$xml->loadXML($ldfContent->ToString());
$destExtent = self::GetLayerExtent($csFactory, $xml, $csObj, $featSvc, $resSvc);
$doc->StartDocument();
$doc->WriteString("<visibility>1</visibility>");
if ($destExtent != null) {
$widthMeters = $csObj->ConvertCoordinateSystemUnitsToMeters($destExtent->GetWidth());
$heightMeters = $csObj->ConvertCoordinateSystemUnitsToMeters($destExtent->GetHeight());
$dimension = sqrt($widthMeters * $heightMeters);
$vlNodes = $xml->getElementsByTagName("VectorLayerDefinition");
$glNodes = $xml->getElementsByTagName("GridLayerDefinition");
$dlNodes = $xml->getElementsByTagName("DrawingLayerDefinition");
if ($vlNodes->length == 1) {
$scaleRangeNodes = $vlNodes->item(0)->getElementsByTagName("VectorScaleRange");
for ($i = 0; $i < $scaleRangeNodes->length; $i++) {
$scaleRange = $scaleRangeNodes->item($i);
$minElt = $scaleRange->getElementsByTagName('MinScale');
$maxElt = $scaleRange->getElementsByTagName('MaxScale');
$minScale = "0";
$maxScale = 'infinity';
// as MDF's VectorScaleRange::MAX_MAP_SCALE
if ($minElt->length > 0) {
$minScale = $minElt->item(0)->nodeValue;
}
if ($maxElt->length > 0) {
$maxScale = $maxElt->item(0)->nodeValue;
}
if ($minScale != 'infinity') {
$minScale = intval($minScale);
}
if ($maxScale != 'infinity') {
$maxScale = intval($maxScale);
} else {
$maxScale = 1000000000000.0;
}
// as MDF's VectorScaleRange::MAX_MAP_SCALE
if ($scale > $minScale && $scale <= $maxScale) {
$this->AppendScaleRange($resId, $destExtent, $dimension, $minScale, $maxScale, $dpi, $drawOrder, $format, $sessionId, $doc);
}
}
} else {
if ($glNodes->length == 1) {
}
}
}
$doc->EndDocument();
}