Method setFile

src/serializers/GltfSerializer.cpp:524–752

}

void GltfSerializer::setFile(IfcParse::IfcFile* f) {
	if (!settings_.get<ifcopenshell::geometry::settings::WriteGltfEcef>().get()) {
		return;
	}

	boost::optional<std::string> crs_epsg;
	boost::optional<std::array<double, 3>> crs_x_axis;
	boost::optional<std::array<double, 3>> eastings_northings_elevation;

	aggregate_of_instance::ptr coordops;
	try {
		coordops = f->instances_by_type("IfcCoordinateOperation");
	} catch (IfcParse::IfcException&) {
		// Ignored. Schema likely doesn't support IfcCoordinateOperation.
	}
	if (coordops) {
		for (auto& coordop : *coordops) {
			IfcUtil::IfcBaseClass* source_crs = coordop->as<IfcUtil::IfcBaseEntity>()->get("SourceCRS");
			if (source_crs->declaration().is("IfcGeometricRepresentationContext")) {
				IfcUtil::IfcBaseClass* target_crs = coordop->as<IfcUtil::IfcBaseEntity>()->get("TargetCRS");
				auto name_attr = target_crs->as<IfcUtil::IfcBaseEntity>()->get("Name");
				if (coordop->declaration().is("IfcMapConversion")) {
					
					if (!name_attr.isNull()) {
						std::string epsg_code = name_attr;
						crs_epsg = epsg_code;

						// @todo in which unit are these?
						double eastings = coordop->as<IfcUtil::IfcBaseEntity>()->get("Eastings");
						double northings = coordop->as<IfcUtil::IfcBaseEntity>()->get("Northings");
						double height = coordop->as<IfcUtil::IfcBaseEntity>()->get("OrthogonalHeight");
						height = 0.;

						eastings_northings_elevation = { { eastings, northings, height} };

						auto xaxis_attr = coordop->as<IfcUtil::IfcBaseEntity>()->get("XAxisAbscissa");
						auto yaxis_attr = coordop->as<IfcUtil::IfcBaseEntity>()->get("XAxisOrdinate");
						if (!xaxis_attr.isNull() && !yaxis_attr.isNull()) {
							double xaxis = xaxis_attr;
							double yaxis = yaxis_attr;

							crs_x_axis = { { xaxis, yaxis, 0. } };
						}
					}
				}
			}
		}
	}

	if (!crs_epsg) {
		auto sites = f->instances_by_type("IfcSite");

		if (sites && sites->size() == 1) {
			auto lat_attr = (*sites->begin())->as<IfcUtil::IfcBaseEntity>()->get("RefLatitude");
			auto lon_attr = (*sites->begin())->as<IfcUtil::IfcBaseEntity>()->get("RefLongitude");

			if (!lat_attr.isNull() && !lon_attr.isNull()) {
				std::vector<int> lat_dms = lat_attr;