CAD tip # 13788:

Question

CAD
% platform category

Green square - mathematical charade and parametric constraints in AutoCAD.

Inspired by a guess on Twitter:

The task - to find the area of the green square - seems to be insufficiently constrained - so the square area is not definable - see the AutoCAD simulation using parametric geometry with many constraints (equal lengths, perpendicularity, point to curve constraint...), associative hatches, a text field/label with the object property (area) and a LISP reactor to automatically update that field after grip editing :

You can download the DWG drawing with constraint definitions from the CAD Block Library - GreenSquare.dwg .

ACADACLT

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15.7.2023 31846×

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AutoCAD LT

applies to: AutoCAD · AutoCAD LT ·

See also:
Tip 14098:	How to use arc length parameter in Inventor sketch?
Tip 14088:	3 methods of creating true rectangles in AutoCAD.
Tip 13185:	Constraining object movement to a specified curve (rail) in AutoCAD.
Tip 12755:	How to create a polyline with multi-colored segments?
Tip 12046:	Random shape and appearance of an Inventor part or assembly.

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