TechDraw Dimension Link

From FreeCAD Documentation
Jump to: navigation, search
Other languages:
Deutsch • ‎English • ‎français • ‎italiano • ‎română • ‎русский
Arrow-left.svg Previous: TechDraw Dimension Angle3Pt.png New Angle3Pt
Next: New Ballon TechDraw Balloon.svg Arrow-right.svg

TechDraw Dimension Link.svg TechDraw Dimension Link

Menu location
TechDraw → Dimension Link
Workbenches
TechDraw
Default shortcut
None
Introduced in version
-
See also
TechDraw NewView, TechDraw NewProjGroup


Description

The Dimension Link tool creates a link between 3D geometry and 1 or more Dimensions on a Page. This link allows the Dimension to use actual 3D values instead of 2D projected values.

How to use

  1. Create your dimension on the drawing page as usual.
  2. Select the geometry in the 3D view, for example, an edge, that corresponds to one of your dimensions.
  3. Press the TechDraw Dimension Link.svg Dimension Link button.
  4. A dialog will open. Select one or more Dimensions to be linked to the selected 3D geometry.
  5. Press OK.

After the link operation is completed the DATAMeasureType property of the dimension changes from Projected to True.

Limitations

Dimension objects are vulnerable to "topological naming" issues. See the information in the TechDraw Dimension Length tool for more information. It is recommended that linking dimensions be one of the last steps in your drawing process.

The link tool will not stop you from making illogical links, so you need to choose the correct edge from the 3D view when creating the link.

There is currently no way to break a link; you can change the DATAMeasureType back to Projected so that the dimension will use the projected value instead of the linked value.

Note that if the Dimension to be linked is based on two vertices, you should select two vertices in the 3D view. Similarly if the Dimension is based on an edge, you should select an edge in the 3D view.

Properties

  1. The MeasureType property of a linked Dimension will be changed from "Projected" to "True".

Scripting

See also: TechDraw API and FreeCAD Scripting Basics.

The Dimension Link tool can be used in macros and from the Python console by using the following functions:

to be defined


Arrow-left.svg Previous: TechDraw Dimension Angle3Pt.png New Angle3Pt
Next: New Ballon TechDraw Balloon.svg Arrow-right.svg