Orbit Hud rotation of Earth with frames

assets/www/huds/index_orbit.html

@@ -300,8 +300,8 @@ function setXYplane(){
 function includeEarth(){
 	
 	containerEarth	= new THREE.Object3D();
-	containerEarth.rotateX(Math.PI/2);
-	containerEarth.rotateZ(-23.4 * Math.PI/180);
+	//containerEarth.rotateX(Math.PI/2);
+	//containerEarth.rotateZ(-23.4 * Math.PI/180);
 	containerEarth.position.z	= 0;
 	containerEarth.name = "EARTH";
 	scene.add(containerEarth);
@@ -340,7 +340,9 @@ function includeEarth(){
 	earthMesh.name = "EARTH-PLANET";
 	containerEarth.add(earthMesh)
 	onRenderFcts.push(function(delta, now){
-		earthMesh.rotation.y += 1/32 * delta * accel_time;		
+		//earthMesh.rotation.y += 1/32 * delta * accel_time;
+		var offset_quat = new THREE.Quaternion().setFromUnitVectors( new THREE.Vector3(0,1,0), new THREE.Vector3(0,0,1) );
+		earthMesh.quaternion.multiplyQuaternions(value_earth_rotation,offset_quat);
 	})
 
 	//Earth axis

src/cs/si/stavor/model/ModelSimulation.java

 package cs.si.stavor.model;
 
+import org.apache.commons.math3.geometry.euclidean.threed.Rotation;
 import org.apache.commons.math3.geometry.euclidean.threed.RotationOrder;
 import org.apache.commons.math3.geometry.euclidean.threed.Vector3D;
 import org.orekit.attitudes.Attitude;
 import org.orekit.bodies.CelestialBodyFactory;
 import org.orekit.errors.OrekitException;
 import org.orekit.frames.Frame;
+import org.orekit.frames.FramesFactory;
 import org.orekit.orbits.KeplerianOrbit;
 import org.orekit.propagation.SpacecraftState;
 import org.orekit.time.AbsoluteDate;
 import org.orekit.time.TimeScale;
 import org.orekit.time.TimeScalesFactory;
+import org.orekit.utils.IERSConventions;
 import org.xwalk.core.XWalkView;
 
 import android.view.View;
@@ -59,6 +62,9 @@ public class ModelSimulation {
 			if(sunFrame==null){
 				sunFrame = CelestialBodyFactory.getSun().getInertiallyOrientedFrame();
 			}
+			if(earthFixedFrame==null){
+				earthFixedFrame = CelestialBodyFactory.getEarth().getBodyOrientedFrame();
+			}
 			if(utc==null){
 				utc = TimeScalesFactory.getUTC();
 			}
@@ -147,7 +153,7 @@ public class ModelSimulation {
     private AbsoluteDate tmp_time;
     private Vector3D tmp_vel;
     private TimeScale utc;
-    private Frame sunFrame;
+    private Frame sunFrame, earthFixedFrame;
     public void updateSimulation(SpacecraftState scs, int sim_progress){
     	if(selectedBrowser.equals(Browsers.Attitude)){
 	    	ModelState new_state = new ModelState();
@@ -229,8 +235,17 @@ public class ModelSimulation {
     	}else if(selectedBrowser.equals(Browsers.Orbit)){
     		ModelStateOrbit new_state = new ModelStateOrbit();
     		
-    		//TODO
-    		new_state.value_earth_rotation = new Quat();
+
+			AbsoluteDate date = scs.getAttitude().getDate();
+    		
+    		try {
+    			//Frame fix_frame = FramesFactory.getITRF(IERSConventions.IERS_2010, true);
+    			//Frame fix_frame = FramesFactory.getITRF2008(true);
+				Rotation rot = scs.getFrame().getTransformTo(earthFixedFrame, date).getRotation();
+	    		new_state.value_earth_rotation = new Quat(rot);
+			} catch (OrekitException e) {
+				e.printStackTrace();
+			}
 	    	//XGGDEBUG: correct values
     		
     		Vector3D spacecraft = scs.getPVCoordinates().getPosition();