TechDraw RadiusDimension

From FreeCAD Documentation
Jump to navigation Jump to search
Other languages:
Deutsch • ‎English • ‎español • ‎français • ‎italiano • ‎polski • ‎română • ‎русский

TechDraw RadiusDimension.svg TechDraw RadiusDimension

Menu location
TechDraw → Dimensions → Insert Radius Dimension
Workbenches
TechDraw
Default shortcut
None
Introduced in version
-
See also
TechDraw DiameterDimension

Description

The Radius Dimension tool adds a radius dimension to a View. The dimension may be applied to any Edge in the drawing which is a circle or circular arc. The distance will initially be the projected distance (ie as shown on the drawing), but this may be changed to the actual 3D distance using the TechDraw LinkDimension.svg TechDraw LinkDimension tool.

TechDraw Dimension Radius example.png

Measuring a circle, indicating the radius

Usage

  1. Select a circle or circular arc in the drawing. (Note some arcs which appear to be circular are actually ellipses or BSplines. You cannot make a radius dimension in these cases)
  2. Press the TechDraw RadiusDimension.svg Radius Dimension button
  3. A dimension will be added to the View. The dimension may be dragged to the desired position.
  4. If needed, add tolerances as described in this page.

To change the properties of a dimension object either double-clicking it in the drawing or in the Tree view. This will open the dimension dialog.

Limitations

Dimension objects are vulnerable to the "topological naming problem". See TechDraw LengthDimension for more information.

Properties

See TechDraw LengthDimension.

Scripting

See also: TechDraw API and FreeCAD Scripting Basics.

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

dim1 = FreeCAD.ActiveDocument.addObject('TechDraw::DrawViewDimension','Dimension')
dim1.Type = "Radius"
dim1.References2D=[(view1, 'Edge1')]
rc = page.addView(dim1)