Model Dragger is an efficient way to modify the shape's position and orientation in a 3D scene.
Here is a Model Editor in a other software:

Figure 1.1 Model Editor on a Equipment

Figure 1.2 Locator Handle of Model Editor
Shape Movement
You can move the shape by drag the handler in one constrain axis when mouse move on to it, as the following pictures show:

Figure 1.3 Linear Movement in the constrain direction
You can also move the shape constrained in the plane by the Planar Movement Handles:

Figure 1.4 Planar Movement
Shape Rotation
You can rotate the shape by the Rotation Handles,

Figure 1.5 Rotation Handles
OpenSceneGraph Dragger for Reference
In OpenSceneGraph this are some Draggers to edit the model's position, such as:
1.TabPlaneDragger in OpenSceneGraph

2.TabPlaneTrackballDragger in OpenSceneGraph

3.TrackballDragger in OpenSceneGraph

4.Translate1DDragger in OpenSceneGraph

5.Translate2DDragger in OpenSceneGraph

6.TranslateAxisDragger in OpenSceneGraph

Conclusion
Model Dragger is a tool to modify the shape's position and orientation in 3D software.
I will implement such tool in occQt, If you are interested, you can join in!
Model Dragger is an efficient way to modify the shape's position and orientation in a 3D scene.


Here is a Model Editor in a other software:
Figure 1.1 Model Editor on a Equipment
Figure 1.2 Locator Handle of Model Editor
Shape Movement
You can move the shape by drag the handler in one constrain axis when mouse move on to it, as the following pictures show:

Figure 1.3 Linear Movement in the constrain direction
You can also move the shape constrained in the plane by the Planar Movement Handles:

Figure 1.4 Planar Movement
Shape Rotation
You can rotate the shape by the Rotation Handles,

Figure 1.5 Rotation Handles
OpenSceneGraph Dragger for Reference
In OpenSceneGraph this are some Draggers to edit the model's position, such as:

1.TabPlaneDragger in OpenSceneGraph
2.TabPlaneTrackballDragger in OpenSceneGraph

3.TrackballDragger in OpenSceneGraph

4.Translate1DDragger in OpenSceneGraph

5.Translate2DDragger in OpenSceneGraph

6.TranslateAxisDragger in OpenSceneGraph

Conclusion
Model Dragger is a tool to modify the shape's position and orientation in 3D software.
I will implement such tool in occQt, If you are interested, you can join in!