camera controls : consitency between editor and viewer

src/main/java/fr/ill/ics/n3d/gui/CameraControls.java

@@ -5,6 +5,7 @@ import javafx.geometry.Point3D;
 import javafx.scene.Camera;
 import javafx.scene.Node;
 import javafx.scene.transform.Affine;
+import javafx.scene.transform.NonInvertibleTransformException;
 import javafx.scene.transform.Rotate;
 import javafx.scene.transform.Translate;
 
@@ -291,14 +292,28 @@ public class CameraControls {
 	public void translate(Point2D delta, boolean isControlDown, boolean isShiftDown, boolean isAltDown) {
 		double modifier = modifier(isControlDown, isShiftDown);
 		
-		Point3D translation = null;
+		Point3D xAxis = Rotate.X_AXIS;
+		Point3D yAxis = Rotate.Y_AXIS;
+		try {
+			xAxis = transform.inverseDeltaTransform(Rotate.X_AXIS).normalize();
+			yAxis = transform.inverseDeltaTransform(Rotate.Y_AXIS).normalize();
+		} catch (NonInvertibleTransformException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+
+		Point3D translation = new Point3D(0, 0, 0);
+		translation = translation.add(xAxis.multiply(- translationSensitivity * delta.getX()));
+		translation = translation.add(yAxis.multiply(- translationSensitivity * delta.getY()));
+		/*
 		if (isAltDown) {
 			translation = new Point3D(0, translationSensitivity * delta.getY(), 0);
 		} else {
-			translation = new Point3D(translationSensitivity * delta.getX(), 0, translationSensitivity * delta.getY());
+			translation = new Point3D(translationSensitivity * delta.getX(), translationSensitivity * delta.getY(), 0);
 		}
 		Rotate lonRot = new Rotate(longitude, Rotate.Y_AXIS);
 		translation = lonRot.transform(translation);
+		*/
 		center = center.add(translation.multiply(modifier));
 
 		update();