3D view

Introduction
The 3D view of FreeCAD is an instance of a Coin3D scenegraph. Coin3D is a library that implements the OpenInventor 2.1 scene description standard.



Actions
When the default Start Workbench is active, right clicking on the 3D view shows only one command:
 * : different button styles to use with a 3-button mouse or laptop trackpad.

However, once a Workbench is loaded, there are additional commands:
 * : creates different types of App::Link objects.
 * : pan and zoom the 3D view to fit all objects in the document in the screen.
 * : pan and zoom the 3D view to fit the currently selected object in the screen.
 * : solid, wireframe, and point options.
 * : isometric, top, bottom, left, right.
 * : create some measurements on the 3D view with the selected objects, or clear the measurements on the screen.
 * : docked, undocked, and fullscreen.

Additionally, depending on the workbench and object that is active, other command menus may become available. For example, with the Part Workbench and one object selected:
 * : color and sizes of lines and vertices, and color of faces.
 * : hide or show.
 * : set to be able to be selected or not. Change the property by toggling in the Property editor.
 * : select the object in the tree view.
 * : assign a random color to the object.
 * : delete the object.

For example, with the Draft Workbench and one object selected:

Details
Since FreeCAD uses Qt as its graphical toolkit, FreeCAD uses the Quarter library to use Coin3D in a Qt environment.

Moreover, it is possible to interact directly with the 3D view scenegraph from the Python console by using the Python library Pivy.

For more information see the power user documentation:
 * Scenegraph, description of Coin3D.
 * Pivy, usage of Coin3D from the Python console.
 * Third party libraries used by FreeCAD.