void Kml::generateGroundOverlayLayer(Layer* pLayer, bool visible, int order, const Layer* pGeoLayer, int frame)
{
VERIFYNRV(pGeoLayer != NULL && pLayer != NULL);
PerspectiveView* pView = dynamic_cast<PerspectiveView*>(pLayer->getView());
VERIFYNRV(pView != NULL);
// block adding current actions to the view's undo buffer
UndoLock lock(pView);
double originalAngle = pView->getRotation();
// get rotation for north up
double angle(0.0);
RasterElement* pRaster = dynamic_cast<RasterElement*>(pGeoLayer->getDataElement()); // get the primary raster element
VERIFYNRV(GeoAlgorithms::getAngleToNorth(pRaster, pView, angle) != false);
pView->rotateTo(angle);
// since north up only rotates, check for left-right reversed
LocationType ll, ul, ur, lr;
pView->getVisibleCorners(ll, ul, ur, lr);
bool imageFlipped(ll.mX > ur.mX);
if (imageFlipped)
{
pView->flipHorizontal();
}
pView->refresh();
XERCES_CPP_NAMESPACE_QUALIFIER DOMElement* pGroundOverlay = mXml.addElement("GroundOverlay");
mXml.pushAddPoint(pGroundOverlay);
string name = pLayer->getDisplayName();
if (name.empty())
{
name = pLayer->getName();
}
if (frame >= 0)
{
name += " frame " + StringUtilities::toDisplayString(frame+1);
}
mXml.addText(name, mXml.addElement("name"));
mXml.addText(pLayer->getDisplayText(), mXml.addElement("description"));
mXml.addText(visible ? "1" : "0", mXml.addElement("visibility"));
mXml.addText(QString::number(order).toAscii().data(), mXml.addElement("drawOrder"));
QString layerId = QString::fromStdString(pLayer->getId());
if (mExportImages)
{
QByteArray bytes(5 * 1024 * 1024, '\0');
QBuffer buffer(&bytes);
QString fileName = layerId;
if (frame >= 0)
{
fileName += QString("/frame%1").arg(frame);
mXml.pushAddPoint(mXml.addElement("TimeStamp"));
QDateTime dt = QDateTime::currentDateTime();
dt.setTime(QTime(0, 0, frame));
mXml.addText(dt.toString(Qt::ISODate).toStdString(), mXml.addElement("when"));
mXml.popAddPoint();
}
fileName += ".png";
if (ImageHandler::getSessionItemImage(pLayer, buffer, "PNG", frame))
{
mImages[fileName] = bytes;
mXml.pushAddPoint(mXml.addElement("Icon"));
mXml.addText(fileName.toStdString(), mXml.addElement("href"));
mXml.popAddPoint();
}
}
else
{
layerId = QUrl::toPercentEncoding(layerId);
QString imageUrl(QString("http://localhost:%1/images/%2.png").arg(KMLServer::getSettingKmlServerPort()).arg(
layerId));
if (frame >= 0)
{
imageUrl += QString("?frame=%1").arg(frame);
mXml.pushAddPoint(mXml.addElement("TimeStamp"));
QDateTime dt = QDateTime::currentDateTime();
dt.setTime(QTime(0, 0, frame));
mXml.addText(dt.toString(Qt::ISODate).toStdString(), mXml.addElement("when"));
mXml.popAddPoint();
}
mXml.pushAddPoint(mXml.addElement("Icon"));
mXml.addText(imageUrl.toStdString(), mXml.addElement("href"));
mXml.popAddPoint();
}
generateBoundingBox(pGeoLayer);
// add ExtendedData
const DynamicObject* pMeta = pLayer->getDataElement()->getMetadata();
VERIFYNRV(pMeta);
const DataVariant& ked(pMeta->getAttributeByPath("KML/ExtendedData"));
if (ked.isValid())
{
std::string kedString = ked.toXmlString();
XmlReader reader(Service<MessageLogMgr>()->getLog(), false);
XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument* kedDoc = reader.parseString(ked.toXmlString());
if (kedDoc != NULL)
{
XERCES_CPP_NAMESPACE_QUALIFIER DOMNode* pKedNode = kedDoc->getDocumentElement();
if (pKedNode != NULL)
{
bool extraPop = false;
if (std::string(A(pKedNode->getNodeName())) != "ExtendedData")
{
mXml.pushAddPoint(mXml.addElement("ExtendedData"));
extraPop = true;
}
pKedNode = mXml.peekAddPoint()->getOwnerDocument()->importNode(pKedNode, true);
mXml.peekAddPoint()->appendChild(pKedNode);
if (extraPop)
{
mXml.popAddPoint();
}
}
}
}
mXml.popAddPoint(); // GroundOverlay
// restore original rotation
if (imageFlipped)
{
pView->flipHorizontal();
}
pView->rotateTo(originalAngle);
pView->refresh();
}
