Driving Dimensions for Google SketchUp for Mac

From LEDAS:

LEDAS Driving Dimensions for SketchUp is a plug-in for parametric modification of 3D geometric models in very simple and intuitive way. With Driving Dimensions one can modify any dimension (length, distance, radius, or angle) in any SketchUp model in just one click. All driving dimensions set in one model are satisfied simultaneously. The simplicity of the user interface of Driving Dimensions plug-in hides very strong mathematical algorithms in the field of geometric constraint solving. Parametric design has never been so easy even for beginners.

Version 1.3 of Driving Dimensions plug-in is compatible with Google SketchUp 6.0 and 7.1 (both free and Pro) running on 32-bit versions Windows 2000/XP/Vista/7 as well as on Mac OS X v.10.6. For more information on the plug-in visit http://DrivingDimensions.com/SketchUp, where one can find detailed on-line help, text and video tutorials, and a set of sample parametric 3D models.

The Driving Dimensions plug-in for SketchUp is available in two versions: free and Pro. The free version is not intended for commercial purposes and does not allow users to add more than twenty five driving dimensions to one model. The price for the Pro version is very moderate: a single-user license costs only $45 (this includes one-year version update) and is available for easy purchase at share-it online store accessible from http://DrivingDimensions.com/store/SketchUp/