protected Vec4 getSurfacePoint(LatLon latlon, double elevation) {
Vec4 point = null;
SceneController sc = this.getApp().getWwd().getSceneController();
Globe globe = this.getApp().getWwd().getModel().getGlobe();
if (sc.getTerrain() != null) {
point =
sc.getTerrain()
.getSurfacePoint(
latlon.getLatitude(),
latlon.getLongitude(),
elevation * sc.getVerticalExaggeration());
}
if (point == null) {
double e = globe.getElevation(latlon.getLatitude(), latlon.getLongitude());
point =
globe.computePointFromPosition(
latlon.getLatitude(),
latlon.getLongitude(),
(e + elevation) * sc.getVerticalExaggeration());
}
return point;
}
protected Vec4 getPoint(LatLon latlon, double elevation) {
SceneController sc = this.getApp().getWwd().getSceneController();
Globe globe = this.getApp().getWwd().getModel().getGlobe();
double e = globe.getElevation(latlon.getLatitude(), latlon.getLongitude());
return globe.computePointFromPosition(
latlon.getLatitude(),
latlon.getLongitude(),
(e + elevation) * sc.getVerticalExaggeration());
}
protected void assembleVertexControlPoints(DrawContext dc) {
Terrain terrain = dc.getTerrain();
ExtrudedPolygon polygon = this.getPolygon();
Position refPos = polygon.getReferencePosition();
Vec4 refPoint = terrain.getSurfacePoint(refPos.getLatitude(), refPos.getLongitude(), 0);
int altitudeMode = polygon.getAltitudeMode();
double height = polygon.getHeight();
Vec4 vaa = null;
double vaaLength = 0; // used to compute independent length of each cap vertex
double vaLength = 0;
int i = 0;
for (LatLon location : polygon.getOuterBoundary()) {
Vec4 vert;
// Compute the top/cap point.
if (altitudeMode == WorldWind.CONSTANT || !(location instanceof Position)) {
if (vaa == null) {
// Compute the vector lengths of the top and bottom points at the reference position.
vaa = refPoint.multiply3(height / refPoint.getLength3());
vaaLength = vaa.getLength3();
vaLength = refPoint.getLength3();
}
// Compute the bottom point, which is on the terrain.
vert = terrain.getSurfacePoint(location.getLatitude(), location.getLongitude(), 0);
double delta = vaLength - vert.dot3(refPoint) / vaLength;
vert = vert.add3(vaa.multiply3(1d + delta / vaaLength));
} else if (altitudeMode == WorldWind.RELATIVE_TO_GROUND) {
vert =
terrain.getSurfacePoint(
location.getLatitude(),
location.getLongitude(),
((Position) location).getAltitude());
} else // WorldWind.ABSOLUTE
{
vert =
terrain
.getGlobe()
.computePointFromPosition(
location.getLatitude(),
location.getLongitude(),
((Position) location).getAltitude() * terrain.getVerticalExaggeration());
}
Position vertexPosition = this.wwd.getModel().getGlobe().computePositionFromPoint(vert);
this.controlPoints.add(
new ControlPointMarker(
MOVE_VERTEX_ACTION, vertexPosition, vert, this.vertexControlAttributes, i));
i++;
}
}
public void doActionOnButton3() {
// Sector sector = Sector.fromDegrees( 44d, 46d, -123.3d, -123.2d );
ArrayList<LatLon> latlons = new ArrayList<LatLon>();
latlons.add(LatLon.fromDegrees(45.50d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.51d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.52d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.53d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.54d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.55d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.56d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.57d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.58d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.59d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.60d, -123.3d));
ElevationModel model = this.wwd.getModel().getGlobe().getElevationModel();
StringBuffer sb = new StringBuffer();
for (LatLon ll : latlons) {
double e = model.getElevation(ll.getLatitude(), ll.getLongitude());
sb.append("\n").append(e);
}
Logging.logger().info(sb.toString());
}
protected void movePolygon(Point previousMousePoint, Point mousePoint) {
// Intersect a ray through each mouse point, with a geoid passing through the reference
// elevation.
// If either ray fails to intersect the geoid, then ignore this event. Use the difference
// between the two
// intersected positions to move the control point's location.
View view = this.wwd.getView();
Globe globe = this.wwd.getModel().getGlobe();
Position refPos = this.polygon.getReferencePosition();
if (refPos == null) return;
Line ray = view.computeRayFromScreenPoint(mousePoint.getX(), mousePoint.getY());
Line previousRay =
view.computeRayFromScreenPoint(previousMousePoint.getX(), previousMousePoint.getY());
Vec4 vec = AirspaceEditorUtil.intersectGlobeAt(this.wwd, refPos.getElevation(), ray);
Vec4 previousVec =
AirspaceEditorUtil.intersectGlobeAt(this.wwd, refPos.getElevation(), previousRay);
if (vec == null || previousVec == null) {
return;
}
Position pos = globe.computePositionFromPoint(vec);
Position previousPos = globe.computePositionFromPoint(previousVec);
LatLon change = pos.subtract(previousPos);
this.polygon.move(new Position(change.getLatitude(), change.getLongitude(), 0.0));
}
protected void initializePolygon(WorldWindow wwd, Polygon polygon, boolean fitShapeToViewport) {
// Creates a rectangle in the center of the viewport. Attempts to guess at a reasonable size
// and height.
Position position = ShapeUtils.getNewShapePosition(wwd);
Angle heading = ShapeUtils.getNewShapeHeading(wwd, true);
double sizeInMeters =
fitShapeToViewport ? ShapeUtils.getViewportScaleFactor(wwd) : DEFAULT_SHAPE_SIZE_METERS;
java.util.List<LatLon> locations =
ShapeUtils.createSquareInViewport(wwd, position, heading, sizeInMeters);
double maxElevation = -Double.MAX_VALUE;
Globe globe = wwd.getModel().getGlobe();
for (LatLon ll : locations) {
double e = globe.getElevation(ll.getLatitude(), ll.getLongitude());
if (e > maxElevation) maxElevation = e;
}
polygon.setAltitudes(0.0, maxElevation + sizeInMeters);
polygon.setTerrainConforming(true, false);
polygon.setLocations(locations);
}