/**
* Compute the amount of rotation to apply to a label in order to keep it oriented toward its
* orientation position.
*
* @param screenPoint Geographic position of the text, projected onto the screen.
* @param orientationScreenPoint Orientation position, projected onto the screen.
* @return The rotation angle to apply when drawing the label.
*/
protected Angle computeRotation(Vec4 screenPoint, Vec4 orientationScreenPoint) {
// Determine delta between the orientation position and the label position
double deltaX = screenPoint.x - orientationScreenPoint.x;
double deltaY = screenPoint.y - orientationScreenPoint.y;
if (deltaX != 0) {
double angle = Math.atan(deltaY / deltaX);
return Angle.fromRadians(angle);
} else {
return Angle.POS90; // Vertical label
}
}
protected Cursor selectResizeCursor(Angle azimuth) {
while (azimuth.degrees < 0) azimuth = azimuth.addDegrees(360);
if (azimuth.degrees < 22.5) return Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR);
else if (azimuth.degrees < 67.5) return Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR);
else if (azimuth.degrees < 112.5) return Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR);
else if (azimuth.degrees < 157.5) return Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR);
else if (azimuth.degrees < 202.5) return Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR);
else if (azimuth.degrees < 247.5) return Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR);
else if (azimuth.degrees < 292.5) return Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR);
else if (azimuth.degrees < 337.5) return Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR);
else // if (azimuth.degrees < 360)
return Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR);
}
protected void setCursor(MeasureTool.ControlPoint controlPoint) {
// TODO: handle 'rotating' mode cursor is this.isRotating() - when using Alt key on regular
// shapes
if (controlPoint == null) {
setComponentCursor(null);
} else {
if (this.measureTool.isRegularShape()) {
if (this.measureTool.isCornerControl(controlPoint)) {
Angle azimuth =
LatLon.greatCircleAzimuth(
controlPoint.getPosition(), this.measureTool.getCenterPosition());
// Account for view heading in cursor selection
azimuth = azimuth.subtract(this.measureTool.getWwd().getView().getHeading());
setComponentCursor(selectResizeCursor(azimuth));
} else if (this.measureTool.isCenterControl(controlPoint)) {
setComponentCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
}
} else {
// Line, path and polygon
setComponentCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
}
}
}
public AppFrame() {
super(true, true, false);
IconLayer layer = new IconLayer();
layer.setPickEnabled(true);
layer.setAllowBatchPicking(false);
layer.setRegionCulling(true);
UserFacingIcon icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0), Angle.fromRadians(0), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0.1), Angle.fromRadians(0.0), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0.0), Angle.fromRadians(0.1), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0.1), Angle.fromRadians(0.1), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0), Angle.fromDegrees(180), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
ApplicationTemplate.insertAfterPlacenames(this.getWwd(), layer);
this.getWwd()
.addSelectListener(
new SelectListener() {
@Override
public void selected(SelectEvent event) {
if (event.getEventAction().equals(SelectEvent.ROLLOVER)) {
PickedObjectList pol = event.getObjects();
System.out.println(" Picked Objects Size " + pol.size());
for (PickedObject po : pol) {
System.out.println(
" Class "
+ po.getObject().getClass().getName()
+ " isTerrian="
+ po.isTerrain());
}
}
}
});
this.getWwd().getSceneController().setDeepPickEnabled(true);
}