Translations:App DocumentObject/7/en

Some of the most important DocumentObjects are the following:
 * The App FeaturePython class, an empty object that can be used for different purposes, depending on the added properties.
 * The App GeoFeature class, the base object of all geometrical objects, that is, of objects that have a Placement property that defines their position in the 3D view.
 * The Part Feature class, derived from App GeoFeature, and the parent class of objects with 2D and 3D topological shapes.
 * The Mesh Feature class, derived from App GeoFeature, and the parent class of objects with 2D and 3D meshes.