Eigenschafteneditor

From FreeCAD Documentation
This page is a translated version of the page Property editor and the translation is 19% complete.
Outdated translations are marked like this.

Einführung

Der Eigenschafteneditor erscheint wenn der Reiter Modell der Combo-Ansicht auf der Oberfläche aktiv ist; er ermöglicht die Verwaltung der öffentlich zugänglichen Eigenschaften der Objekte im Dokument.

Generell ist der Eigenschafteneditor dazu gedacht, nur ein Objekt zur Zeit zu behandeln. Die im Eigenschafteneditor angezeigten Werte gehören zum ausgewählten Objekt des aktiven Dokuments. Es gibt jedoch einige Eigenschaften, wie Farben, die für viele ausgewählte Objekte gleichzeitig gesetzt werden können. Wenn kein Element ausgewählt wurde, bleibt der Eigenschafteneditor leer.

Nicht alle Eigenschaften können immer geändert werden; je nach dem spezifischen Status der Eigenschaft sind einige von ihnen unsichtbar (nicht aufgeführt) oder schreibgeschützt (nicht bearbeitbar).

The Data properties of a Part Box

Eigenschaftentypen

Eine Eigenschaft ist eine Information wie eine Zahl oder eine Textzeichenfolge, die an ein FreeCAD-Dokument oder ein Objekt im Dokument angehängt ist.

App::PropertyBool
App::PropertyFloat
App::PropertyAngle
App::PropertyDistance
App::PropertyInteger
App::PropertyString
App::PropertyVector
App::PropertyPlacement

Ansicht- und Daten-Eigenschaften

The Property editor has two tabs giving access to two classes of properties:

  • Data properties, related to the "physical" parameters of the object. The Data properties define the essential characteristics of the object. They exist at all times, even when FreeCAD is used in console mode, or as a library. This means that if you load a document in console mode, you can edit the radius of a circle or the length of a line, even if you cannot see the result on the screen.
  • View properties, related to the "visual" appearance of the object. The View properties are tied to the ViewObject of the object, and are only accessible when the graphical user interface (GUI) is loaded. They are not accessible when using FreeCAD in console mode, or as a headless library.

Grundlegende Eigenschaften

Different objects may have different properties. However, many objects have the same properties because they are derived from the same internal class.

Most geometrical objects that can be created and displayed in the 3D view are derived from a Part::Feature. See Part Feature for the basic properties these objects have.

For 2D geometry, most objects are derived from a Part::Part2DObject (itself derived from a Part::Feature) which is the base of Sketches, and most Draft objects. See Part Part2DObject for the basic properties these objects have.

Context menu

To display the context menu of the Property editor right-click the background of the editor, or right-click a property.

Right-clicking the background shows three options:

  • Add property: adds a dynamic property to the object.
  • Show hidden: if active, hidden Data and View properties are shown in the editor.
  • Auto expand: if active, all nodes in the editor are expanded when an object is selected.

When right-clicking a property the following additional options are available:

  • Expression...: brings up the Expression editor, which allows using expressions in the property value.
  • Status:
  • Hidden: if active, sets the property as hidden, meaning that it will only be displayed in the Property editor if Show hidden is active.
  • Output: if active, sets the property as output.
  • NoRecompute: if active, sets the property as not recomputed when the document is recomputed. This is useful when a property should be kept unaffected by other updates.
  • ReadOnly: if active, sets the property as read-only. The property won't be editable in the Property editor and the Expression... option no longer available. It may however still be possible to change the property via a dialog.
  • Transient: if active, sets the property as transient. The value of a transient property is not saved to file. When opening a file, it is instantiated with its default value.
  • Touched: if active, the object becomes touched, and ready for recompute.
  • EvalOnRestore: if active, the property is evaluated when the document is restored.
  • CopyOnChange: if active, the property is copied when changed in a Link. The Link's DatenLink Copy on Change property must be set to Tracking or Enabled for this to work. This is related to Variant Links.

Skripten

See FeaturePython Custom Properties.

Preferences

See Combo view.