PointPlacemark & PointPlacemarkAttributes Pitch

[mainstringargs]

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Description of the Change

Fix ability to set pitch on PointPlacemark

Why Should This Be In Core?

Setting pitch on PointPlacemark is not currently working as expected

Benefits

Allows developers to properly set pitch on PointPlacemark

Potential Drawbacks

N/A

Applicable Issues

Submitted previously as an issue on the main WorldWind repo, but has not been implemented: https://github.com/NASAWorldWind/WorldWindJava/issues/151

[mainstringargs]

Here is a SSCCE:

package gov.nasa.worldwindx;

import gov.nasa.worldwind.WorldWind;
import gov.nasa.worldwind.avlist.AVKey;
import gov.nasa.worldwind.geom.Position;
import gov.nasa.worldwind.layers.RenderableLayer;
import gov.nasa.worldwind.render.*;
import gov.nasa.worldwind.util.WWUtil;
import gov.nasa.worldwindx.examples.*;

import java.awt.*;

public class Placemarks extends ApplicationTemplate {
    public static class AppFrame extends ApplicationTemplate.AppFrame {
        public AppFrame() {
            super(true, true, false);

            final RenderableLayer layer = new RenderableLayer();

            PointPlacemark pp = new PointPlacemark(Position.fromDegrees(28, -102, 30000));
            pp.setLabelText("PointPlacemark");
            pp.setLineEnabled(false);
            pp.setAltitudeMode(WorldWind.ABSOLUTE);
            PointPlacemarkAttributes attrs = new PointPlacemarkAttributes();
            attrs.setImageAddress("gov/nasa/worldwindx/examples/images/georss.png");
            attrs.setScale(1.0);
            attrs.setImageOffset(Offset.CENTER);

            pp.setAttributes(attrs);
            layer.addRenderable(pp);

            // Add the layer to the model.
            insertBeforeCompass(getWwd(), layer);

            Thread t = new Thread(new Runnable() {

                @Override
                public void run() {
                    for(double i = 0.0; i<360; i+=.1) {
                        attrs.setPitch(i);

                        System.out.println("Pitch is now "+i);

                        try {
                            Thread.sleep(25);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }

                        AppFrame.this.getWwd().redrawNow();
                    }

                }
            });
            t.start();
        }
    }

    public static void main(String[] args) {
        ApplicationTemplate.start("WorldWind Placemarks", AppFrame.class);
    }
}