Add ability to anchor an overlay

examples/editModels.js

@@ -76,38 +76,42 @@ function controller(wichSide) {
     this.oldModelRadius;
     
     this.laser = Overlays.addOverlay("line3d", {
-                                     position: this.palmPosition,
+                                     position: { x: 0, y: 0, z: 0 },
-                                     end: this.tipPosition,
+                                     end: { x: 0, y: 0, z: 0 },
                                      color: LASER_COLOR,
                                      alpha: 1,
                                      visible: false,
-                                     lineWidth: LASER_WIDTH
+                                     lineWidth: LASER_WIDTH,
+                                     anchor: "MyAvatar"
                                      });
     
     this.guideScale = 0.02;
     this.ball = Overlays.addOverlay("sphere", {
-                                    position: this.palmPosition,
+                                    position: { x: 0, y: 0, z: 0 },
                                     size: this.guideScale,
                                     solid: true,
                                     color: { red: 0, green: 255, blue: 0 },
                                     alpha: 1,
                                     visible: false,
+                                    anchor: "MyAvatar"
                                     });
     this.leftRight = Overlays.addOverlay("line3d", {
-                                         position: this.palmPosition,
+                                         position: { x: 0, y: 0, z: 0 },
-                                         end: this.tipPosition,
+                                         end: { x: 0, y: 0, z: 0 },
                                          color: { red: 0, green: 0, blue: 255 },
                                          alpha: 1,
                                          visible: false,
-                                         lineWidth: LASER_WIDTH
+                                         lineWidth: LASER_WIDTH,
+                                         anchor: "MyAvatar"
                                          });
     this.topDown = Overlays.addOverlay("line3d", {
-                                       position: this.palmPosition,
+                                       position: { x: 0, y: 0, z: 0 },
-                                       end: this.tipPosition,
+                                       end: { x: 0, y: 0, z: 0 },
                                        color: { red: 0, green: 0, blue: 255 },
                                        alpha: 1,
                                        visible: false,
-                                       lineWidth: LASER_WIDTH
+                                       lineWidth: LASER_WIDTH,
+                                       anchor: "MyAvatar"
                                        });
     
 
@@ -170,10 +174,11 @@ function controller(wichSide) {
     }
     
     this.moveLaser = function () {
-        var endPosition = Vec3.sum(this.palmPosition, Vec3.multiply(this.front, LASER_LENGTH_FACTOR));
+        var startPosition = Vec3.subtract(this.palmPosition, MyAvatar.position);
+        var endPosition = Vec3.sum(startPosition, Vec3.multiply(this.front, LASER_LENGTH_FACTOR));
         
         Overlays.editOverlay(this.laser, {
-                             position: this.palmPosition,
+                             position: startPosition,
                              end: endPosition,
                              visible: true
                              });
@@ -219,11 +224,11 @@ function controller(wichSide) {
                              position: newPosition,
                              modelRotation: newRotation
                              });
-            print("Moving " + this.modelID.id);
+//            print("Moving " + this.modelID.id);
 //            Vec3.print("Old Position: ", this.oldModelPosition);
 //            Vec3.print("Sav Position: ", newPosition);
-            Quat.print("Old Rotation: ", this.oldModelRotation);
+//            Quat.print("Old Rotation: ", this.oldModelRotation);
-            Quat.print("New Rotation: ", newRotation);
+//            Quat.print("New Rotation: ", newRotation);
             
             this.oldModelRotation = newRotation;
             this.oldModelPosition = newPosition;
@@ -301,7 +306,7 @@ var rightController = new controller(RIGHT);
 
 function moveModels() {
     if (leftController.grabbing && rightController.grabbing && rightController.modelID.id == leftController.modelID.id) {
-        print("Both controllers");
+        //print("Both controllers");
         var oldLeftPoint = Vec3.sum(leftController.oldPalmPosition, Vec3.multiply(leftController.oldFront, leftController.x));
         var oldRightPoint = Vec3.sum(rightController.oldPalmPosition, Vec3.multiply(rightController.oldFront, rightController.x));
         
@@ -319,7 +324,7 @@ function moveModels() {
         
         var newPosition = Vec3.sum(middle,
                                    Vec3.multiply(Vec3.subtract(leftController.oldModelPosition, oldMiddle), ratio));
-        Vec3.print("Ratio : " + ratio + " New position: ", newPosition);
+        //Vec3.print("Ratio : " + ratio + " New position: ", newPosition);
         var rotation = Quat.multiply(leftController.rotation,
                                      Quat.inverse(leftController.oldRotation));
         rotation = Quat.multiply(rotation, leftController.oldModelRotation);

interface/src/ui/overlays/Overlay.cpp

@@ -23,7 +23,8 @@ Overlay::Overlay() :
     _parent(NULL),
     _alpha(DEFAULT_ALPHA),
     _color(DEFAULT_BACKGROUND_COLOR),
-    _visible(true)
+    _visible(true),
+    _anchor(NO_ANCHOR)
 {
 }
 
@@ -51,8 +52,15 @@ void Overlay::setProperties(const QScriptValue& properties) {
     if (properties.property("alpha").isValid()) {
         setAlpha(properties.property("alpha").toVariant().toFloat());
     }
-
+    
     if (properties.property("visible").isValid()) {
         setVisible(properties.property("visible").toVariant().toBool());
     }
+    
+    if (properties.property("anchor").isValid()) {
+        QString property = properties.property("anchor").toVariant().toString();
+        if (property == "MyAvatar") {
+            setAnchor(MY_AVATAR);
+        }
+    }
 }

interface/src/ui/overlays/Overlay.h

@@ -28,6 +28,11 @@ class Overlay : public QObject {
     Q_OBJECT
     
 public:
+    enum Anchor {
+        NO_ANCHOR,
+        MY_AVATAR
+    };
+    
     Overlay();
     ~Overlay();
     void init(QGLWidget* parent);
@@ -38,11 +43,13 @@ public:
     bool getVisible() const { return _visible; }
     const xColor& getColor() const { return _color; }
     float getAlpha() const { return _alpha; }
+    Anchor getAnchor() const { return _anchor; }
 
     // setters
     void setVisible(bool visible) { _visible = visible; }
     void setColor(const xColor& color) { _color = color; }
     void setAlpha(float alpha) { _alpha = alpha; }
+    void setAnchor(Anchor anchor) { _anchor = anchor; }
 
     virtual void setProperties(const QScriptValue& properties);
 
@@ -51,6 +58,7 @@ protected:
     float _alpha;
     xColor _color;
     bool _visible; // should the overlay be drawn at all
+    Anchor _anchor;
 };
 
  

interface/src/ui/overlays/Overlays.cpp

@@ -8,6 +8,7 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include <Application.h>
 
 #include "Cube3DOverlay.h"
 #include "ImageOverlay.h"
@@ -57,8 +58,19 @@ void Overlays::render2D() {
 }
 
 void Overlays::render3D() {
+    glm::vec3 myAvatarPosition = Application::getInstance()->getAvatar()->getPosition();
+    
     foreach(Overlay* thisOverlay, _overlays3D) {
+        glPushMatrix();
+        switch (thisOverlay->getAnchor()) {
+            case Overlay::MY_AVATAR:
+                glTranslatef(myAvatarPosition.x, myAvatarPosition.y, myAvatarPosition.z);
+                break;
+            default:
+                break;
+        }
         thisOverlay->render();
+        glPopMatrix();
     }
 }