Ellipse

Definition

An ellipse in IFCs is defined by giving the center point and X-axis direction. In addition the length of the major and minor axis have to be defined.

Used by views

• Arch. design >> Quantities take off
• Arch. design >> Thermal load calculations / HVAC system design
• CAD / visualization

Data structure

IfcEllipse
Position
2D placement [all]
SemiAxis1
SemiAxis2

Uses concepts

2D placement [all]

Used by concepts

2D geometry
Composite curve

Copyright © 2000-2002 BLIS-Project [BLIS, Registered Organization]
Author: Jiri Hietanen (jiri@blis-project.org)
All rights reserved.