TechDraw RadiusDimension

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Revision as of 13:44, 10 January 2017 by Wandererfan (talk | contribs)

TechDraw Dimension Radius

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

Description

The Dimension Radius 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.

How to use

  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 File:Dimension Radius.png Dimension Radius button
  3. A dimension will be added to the View. The dimension may be dragged to the desired position.

Options

None.

Properties

  • DataX: Horizontal position of the dimension text relative to the View.
  • DataY: Vertical position of the dimension text relative to the View.
  • DataFont: The name of the font to use for the dimension text.
  • DataFontsize: Dimension text size in mm.
  • DataFormatSpec: Allows additional text to be added to the dimension text. Dimension value will replace %value%.
  • DataLineWidth: Dimension line weight.
  • DataType: Length,radius,diameter, etc. Not normally manipulated by the end user.
  • DataMeasureType: "True" - based on 3D geometry or "Projected" - based on the drawing. Not normally manipulated directly by the end user.

Scripting

Radius dimensions can be added to Pages using Python.

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

Notes

  • All Dimensions are extremely vulnerable to the infamous "topological naming" issue. It is not possible at this time to keep references to 2D (projected) or 3D (actual) geometrical objects in sync with changes in the model. It is recommended that Dimensions be added towards the end of the drawing creation process.