/usr/share/doc/libkml-dev/examples/helloworld/createkml.cc is in libkml-dev 1.3.0-5.
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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
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//
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// createkml.cc
// This program uses the KmlFactory to create a Point Placemark and
// prints the resultant KML on standard output.
#include <iostream>
#include <string>
#include "kml/dom.h"
// libkml types are in the kmldom namespace
using kmldom::CoordinatesPtr;
using kmldom::KmlPtr;
using kmldom::KmlFactory;
using kmldom::PlacemarkPtr;
using kmldom::PointPtr;
int main() {
// Get the factory singleton to create KML elements.
KmlFactory* factory = KmlFactory::GetFactory();
// Create <coordinates>.
CoordinatesPtr coordinates = factory->CreateCoordinates();
// Create <coordinates>-122.0816695,37.42052549<coordinates>
coordinates->add_latlng(37.42052549,-122.0816695);
// Create <Point> and give it <coordinates>.
PointPtr point = factory->CreatePoint();
point->set_coordinates(coordinates); // point takes ownership
// Create <Placemark> and give it a <name> and the <Point>.
PlacemarkPtr placemark = factory->CreatePlacemark();
placemark->set_name("Cool Statue");
placemark->set_geometry(point); // placemark takes ownership
// Create <kml> and give it <Placemark>.
KmlPtr kml = factory->CreateKml();
kml->set_feature(placemark); // kml takes ownership.
// Serialize to XML
std::string xml = kmldom::SerializePretty(kml);
// Print to stdout
std::cout << xml;
}
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