C++ LineStringPtr::set_altitudemode方法代码示例

/**
 * @brief KmlExport::exportToKML Triggers logfile export to KML.
 */
bool KmlExport::exportToKML()
{
    bool ret = open();
    if (!ret) {
        qDebug () << "Logfile failed to open during KML export";
        return false;
    }

    // Parses logfile and generates KML document
    ret = preparseLogFile();
    if (!ret) {
        qDebug () << "Logfile preparsing failed";
        return false;
    }

    // Call parser.
    parseLogFile();

    // Add track to <Document>
    document->add_feature(trackFolder);

    // Add timespans to <Document>
    document->add_feature(timestampFolder);

    // Add ground track to <Document>
    {
        LineStringPtr linestring = factory->CreateLineString();
        linestring->set_extrude(false); // Do not extrude to ground
        linestring->set_altitudemode(kmldom::ALTITUDEMODE_CLAMPTOGROUND);
        linestring->set_coordinates(wallAxes[0]);

        MultiGeometryPtr multiGeometry = factory->CreateMultiGeometry();
        multiGeometry->add_geometry(linestring);

        PlacemarkPtr placemark = factory->CreatePlacemark();
        placemark->set_geometry(multiGeometry);
        placemark->set_styleurl("#ts_2_tb");
        placemark->set_name("Ground track");

        document->add_feature(placemark);
    }

    // Add wall axes to <Document>
    FolderPtr folder = factory->CreateFolder();
    for (int i=0; i<numberOfWallAxes; i++) {
        LineStringPtr linestring = factory->CreateLineString();
        linestring->set_extrude(false); // Do not extrude to ground
        linestring->set_altitudemode(kmldom::ALTITUDEMODE_ABSOLUTE);
        linestring->set_coordinates(wallAxes[i]);

        MultiGeometryPtr multiGeometry = factory->CreateMultiGeometry();
        multiGeometry->add_geometry(linestring);

        PlacemarkPtr placemark = factory->CreatePlacemark();
        placemark->set_geometry(multiGeometry);
        placemark->set_styleurl("#ts_1_tb");

        folder->add_feature(placemark);
        folder->set_name("Wall axes");
    }
    document->add_feature(folder);

    // Create <kml> and give it <Document>.
    KmlPtr kml = factory->CreateKml();
    kml->set_feature(document);  // kml takes ownership.

    // Serialize to XML
    std::string kml_data = kmldom::SerializePretty(kml);

    // Save to file
    if (QFileInfo(outputFileName).suffix().toLower() == "kmz") {
        if (!kmlengine::KmzFile::WriteKmz(outputFileName.toStdString().c_str(), kml_data)) {
            qDebug() << "KMZ write failed: " << outputFileName;
            QMessageBox::critical(new QWidget(),"KMZ write failed", "Failed to write KMZ file.");
            return false;
        }
    } else if (QFileInfo(outputFileName).suffix().toLower() == "kml") {
        if (!kmlbase::File::WriteStringToFile(kml_data, outputFileName.toStdString())) {
            qDebug() << "KML write failed: " << outputFileName;
            QMessageBox::critical(new QWidget(),"KML write failed", "Failed to write KML file.");
            return false;
        }
    } else {
        qDebug() << "Write failed. Invalid file name:" << outputFileName;
        QMessageBox::critical(new QWidget(),"Write failed", "Failed to write file. Invalid filename");
        return false;
    }


    return true;
}

/**
 * @brief KmlExport::CreateLineStringPlacemark Adds a line segment which is colored according to the
 * vehicle's speed.
 * @param startPoint Beginning point along line
 * @param endPoint End point point along line
 * @return Returns the placemark containing the line segment
 */
PlacemarkPtr KmlExport::CreateLineStringPlacemark(const LLAVCoordinates &startPoint, const LLAVCoordinates &endPoint, quint32 newPlacemarkTime)
{
    CoordinatesPtr coordinates = factory->CreateCoordinates();
    coordinates->add_latlngalt(startPoint.latitude, startPoint.longitude, startPoint.altitude);
    coordinates->add_latlngalt(endPoint.latitude,   endPoint.longitude,   endPoint.altitude);

    LineStringPtr linestring = factory->CreateLineString();
    linestring->set_extrude(true); // Extrude to ground
    linestring->set_altitudemode(kmldom::ALTITUDEMODE_ABSOLUTE);
    linestring->set_coordinates(coordinates);

    StyleMapPtr styleMap = factory->CreateStyleMap();


    // Add custom balloon style (gets rid of "Directions to here...")
    // https://groups.google.com/forum/?fromgroups#!topic/kml-support-getting-started/2CqF9oiynRY
    BalloonStylePtr balloonStyle = factory->CreateBalloonStyle();
    balloonStyle->set_text("$[description]");

    {
        double currentVelocity = (startPoint.groundspeed + endPoint.groundspeed)/2;

        // Set the linestyle. The color is a function of speed.
        LineStylePtr lineStyle = factory->CreateLineStyle();
        lineStyle->set_color(mapVelocity2Color(currentVelocity));

        PolyStylePtr polyStyle = factory->CreatePolyStyle();
        polyStyle->set_color(mapVelocity2Color(currentVelocity, 100));

        // Link the style to the icon
        StylePtr style = factory->CreateStyle();
        style->set_balloonstyle(balloonStyle);
        style->set_linestyle(lineStyle);
        style->set_polystyle(polyStyle);

        PairPtr pair = factory->CreatePair();
        pair->set_styleselector(style);
        pair->set_key(kmldom::STYLESTATE_NORMAL);

        styleMap->add_pair(pair);
    }

    {
        double currentVelocity = (startPoint.groundspeed + endPoint.groundspeed)/2;

        // Set the linestyle. The color is a function of speed.
        LineStylePtr lineStyle = factory->CreateLineStyle();
        lineStyle->set_color(mapVelocity2Color(currentVelocity));

        PolyStylePtr polyStyle = factory->CreatePolyStyle();
        polyStyle->set_color(mapVelocity2Color(currentVelocity, 100));
        polyStyle->set_fill(false);

        // Link the style to the icon
        StylePtr style = factory->CreateStyle();
        style->set_balloonstyle(balloonStyle);
        style->set_linestyle(lineStyle);
        style->set_polystyle(polyStyle);

        PairPtr pair = factory->CreatePair();
        pair->set_styleselector(style);
        pair->set_key(kmldom::STYLESTATE_HIGHLIGHT);

        styleMap->add_pair(pair);
    }

    PlacemarkPtr placemark = factory->CreatePlacemark();
    placemark->set_geometry(linestring);
    placemark->set_styleselector(styleMap);
    placemark->set_visibility(true);

    // Create the timespan
    TimeSpanPtr timeSpan = factory->CreateTimeSpan();
    QDateTime startTime = QDateTime::currentDateTimeUtc().addMSecs(newPlacemarkTime); // FIXME: Make this a function of the true time, preferably gotten from the GPS
    QDateTime endTime = QDateTime::currentDateTimeUtc().addMSecs(newPlacemarkTime);
    timeSpan->set_begin(startTime.toString(dateTimeFormat).toStdString());
    timeSpan->set_end(endTime.toString(dateTimeFormat).toStdString());

    // Set the name
    QDateTime trackTime = QDateTime::currentDateTimeUtc().addMSecs(newPlacemarkTime); // FIXME: Make it a function of the realtime preferably gotten from the GPS
    placemark->set_name(trackTime.toString(dateTimeFormat).toStdString());

    // Add a nice description to the track placemark
    placemark->set_description(informationString.toStdString());

    // Set the timespan
    placemark->set_timeprimitive(timeSpan);

    return placemark;
}

void ogr2altitudemode_rec (
    GeometryPtr poKmlGeometry,
    int iAltitudeMode,
    int isGX )
{

    PointPtr poKmlPoint;
    LineStringPtr poKmlLineString;
    PolygonPtr poKmlPolygon;
    MultiGeometryPtr poKmlMultiGeometry;

    size_t nGeom;
    size_t i;

    switch ( poKmlGeometry->Type (  ) ) {

    case kmldom::Type_Point:
        poKmlPoint = AsPoint ( poKmlGeometry );

        if ( !isGX )
            poKmlPoint->set_altitudemode ( iAltitudeMode );
        else
            poKmlPoint->set_gx_altitudemode ( iAltitudeMode );

        break;

    case kmldom::Type_LineString:
        poKmlLineString = AsLineString ( poKmlGeometry );

        if ( !isGX )
            poKmlLineString->set_altitudemode ( iAltitudeMode );
        else
            poKmlLineString->set_gx_altitudemode ( iAltitudeMode );

        break;

    case kmldom::Type_LinearRing:
        break;

    case kmldom::Type_Polygon:
        poKmlPolygon = AsPolygon ( poKmlGeometry );

        if ( !isGX )
            poKmlPolygon->set_altitudemode ( iAltitudeMode );
        else
            poKmlPolygon->set_gx_altitudemode ( iAltitudeMode );

        break;

    case kmldom::Type_MultiGeometry:
        poKmlMultiGeometry = AsMultiGeometry ( poKmlGeometry );

        nGeom = poKmlMultiGeometry->get_geometry_array_size (  );
        for ( i = 0; i < nGeom; i++ ) {
            ogr2altitudemode_rec ( poKmlMultiGeometry->
                                   get_geometry_array_at ( i ), iAltitudeMode,
                                   isGX );
        }

        break;

    default:
        break;

    }

}