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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwindx.examples;
import gov.nasa.worldwind.geom.*;
import gov.nasa.worldwind.layers.RenderableLayer;
import gov.nasa.worldwind.render.*;
import gov.nasa.worldwind.util.*;
import java.awt.*;
import java.util.Arrays;
/**
* Illustrates how to enable shape dragging in World Wind by using a {@link BasicDragger}. This creates
* multiple shapes on the surface terrain that can be dragged to a new location on the terrain. The shapes retain their
* form when dragged.
*
* @author dcollins
* @version $Id: DraggingShapes.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class DraggingShapes extends ApplicationTemplate
{
protected static class AppFrame extends ApplicationTemplate.AppFrame
{
protected static final String SURFACE_POLYGON_IMAGE_PATH = "gov/nasa/worldwindx/examples/images/georss.png";
public AppFrame()
{
// Add a basic dragger to the World Window's select listeners to enable shape dragging.
this.getWwd().addSelectListener(new BasicDragger((this.getWwd())));
// Create a layer of shapes to drag.
this.makeShapes();
}
protected void makeShapes()
{
RenderableLayer layer = new RenderableLayer();
layer.setName("Surface Shapes");
// Surface polygon over Florida.
ShapeAttributes attrs = new BasicShapeAttributes();
attrs.setOutlineMaterial(Material.WHITE);
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
attrs.setImageSource(SURFACE_POLYGON_IMAGE_PATH);
attrs.setImageScale(0.5);
double originLat = 28;
double originLon = -82;
Iterable locations = Arrays.asList(
LatLon.fromDegrees(originLat + 5.0, originLon + 2.5),
LatLon.fromDegrees(originLat + 5.0, originLon - 2.5),
LatLon.fromDegrees(originLat + 2.5, originLon - 5.0),
LatLon.fromDegrees(originLat - 2.5, originLon - 5.0),
LatLon.fromDegrees(originLat - 5.0, originLon - 2.5),
LatLon.fromDegrees(originLat - 5.0, originLon + 2.5),
LatLon.fromDegrees(originLat - 2.5, originLon + 5.0),
LatLon.fromDegrees(originLat + 2.5, originLon + 5.0),
LatLon.fromDegrees(originLat + 5.0, originLon + 2.5));
SurfaceShape shape = new SurfacePolygon(locations);
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface polygon spanning the international dateline.
attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.RED);
attrs.setOutlineMaterial(new Material(WWUtil.makeColorBrighter(Color.RED)));
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
locations = Arrays.asList(
LatLon.fromDegrees(20, -170),
LatLon.fromDegrees(15, 170),
LatLon.fromDegrees(10, -175),
LatLon.fromDegrees(5, 170),
LatLon.fromDegrees(0, -170),
LatLon.fromDegrees(20, -170));
shape = new SurfacePolygon(locations);
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface ellipse over the center of the United States.
attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.CYAN);
attrs.setOutlineMaterial(new Material(WWUtil.makeColorBrighter(Color.CYAN)));
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
shape = new SurfaceEllipse(LatLon.fromDegrees(38, -104), 1.5e5, 1e5, Angle.fromDegrees(15));
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface circle over the center of the United states.
attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.GREEN);
attrs.setOutlineMaterial(new Material(WWUtil.makeColorBrighter(Color.GREEN)));
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
shape = new SurfaceCircle(LatLon.fromDegrees(36, -104), 1e5);
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface circle over the North Pole
shape = new SurfaceCircle(LatLon.fromDegrees(90, 0), 1e6);
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface quadrilateral over the center of the United States.
attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.ORANGE);
attrs.setOutlineMaterial(new Material(WWUtil.makeColorBrighter(Color.ORANGE)));
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
shape = new SurfaceQuad(LatLon.fromDegrees(42, -104), 1e5, 1.3e5, Angle.fromDegrees(20));
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface square over the center of the United states.
attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.MAGENTA);
attrs.setOutlineMaterial(new Material(WWUtil.makeColorBrighter(Color.MAGENTA)));
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
shape = new SurfaceSquare(LatLon.fromDegrees(45, -104), 1e5);
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface sector over Mt. Shasta.
attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.YELLOW);
attrs.setOutlineMaterial(new Material(WWUtil.makeColorBrighter(Color.YELLOW)));
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
shape = new SurfaceSector(new Sector(
Angle.fromDegrees(41.0), Angle.fromDegrees(41.6),
Angle.fromDegrees(-122.5), Angle.fromDegrees(-121.7)));
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface sector over Lake Tahoe.
attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.CYAN);
attrs.setOutlineMaterial(new Material(WWUtil.makeColorBrighter(Color.CYAN)));
attrs.setInteriorOpacity(0.5);
attrs.setOutlineOpacity(0.8);
attrs.setOutlineWidth(3);
shape = new SurfaceSector(new Sector(
Angle.fromDegrees(38.9), Angle.fromDegrees(39.3),
Angle.fromDegrees(-120.2), Angle.fromDegrees(-119.9)));
shape.setAttributes(attrs);
layer.addRenderable(shape);
// Surface polyline spanning the international dateline.
attrs = new BasicShapeAttributes();
attrs.setOutlineMaterial(Material.RED);
attrs.setOutlineWidth(3);
attrs.setOutlineStippleFactor(2);
locations = Arrays.asList(
LatLon.fromDegrees(-10, 170),
LatLon.fromDegrees(-10, -170));
shape = new SurfacePolyline(locations);
shape.setAttributes(attrs);
((SurfacePolyline) shape).setClosed(false);
layer.addRenderable(shape);
// Add the layer to the model and update the layer panel.
insertBeforeCompass(this.getWwd(), layer);
this.getLayerPanel().update(this.getWwd());
}
}
public static void main(String[] args)
{
ApplicationTemplate.start("World Wind Dragging Shapes", AppFrame.class);
}
}