Std Group

Description
Std Group (internally called App DocumentObjectGroup) is a general purpose container that allows you to group different types of objects in the Tree view, regardless of their data type. It is used as a simple folder to categorize and organize the objects in your model, in order to keep a logical structure. Std Groups may be nested inside other Std Groups.

The Std Group tool is not defined by a particular workbench, but by the base system, thus it is found in the that is available in all workbenches.

To group 3D objects as a single unit, with the intention of creating assemblies, use Std Part instead.



Usage

 * 1) Do one of the following:
 * 2) * Right-click the name of the document in the Tree view and in the context menu choose.
 * 3) * Press the button.
 * 4) An empty Group is created.
 * 5) To add objects to the Group, select them in Tree view, and drag and drop them onto the Group.
 * 6) To remove objects from the Group, drag them out of the Group, and onto the document label at the top of the Tree view.
 * 7) Objects can also be added and removed by editing the  property of the Group.

Properties
The Std Group, internally called App DocumentObjectGroup ( class), is derived from the basic App DocumentObject ( class) and inherits all its properties.

The Std Group has the same properties as the App FeaturePython, which is the most basic instance of an App DocumentObject. It also has the following additional properties in the property editor. Hidden properties can be shown by using the command in the context menu of the property editor.

Data

 * : a list of referenced objects. By default, it is empty.
 * : whether the group is touched or not.

Scripting
FreeCAD Scripting Basics and scripted objects.

See Part Feature for the general information on adding objects to the document.

A Std Group (App DocumentObjectGroup) is created with the method of the document. Once a Group exists, other objects can be added to it with the or  methods.

This basic doesn't have a Proxy object so it can't be fully used for sub-classing.

For Python subclassing you should create a object.

For example, a FEM Analysis is an object with a custom icon and additional properties.

Links

 * Use case in Arch Tutorial
 * Document structure
 * Organizing your model