University of Technology Computer engineering and information technology Department Auto. CAD lecture(8) Drawing Commands Ellipse Issued by: Ms. c. Ameer Mosa Thoeny 1
University of Technology Computer engineering and information technology Department ELLIPSE: • To draw an ellipse , you need to know the first axis and one point of second axis that you define. Because Not all ellipses are horizontal or vertical. • You control the orientation when you stipulate the second point of the first axis. The second axis is automatically perpendicular to the first axis. 2
University of Technology Computer engineering and information technology Department Two methods or more can be used to create an ellipse. : 1. Specify one axis and the end of the second. Command: ellipse Specify axis end point of ellipse or[Arc/center]: x, y Specify other end point of axis: x, y Specify distance to other axis or[Rotation]: x, y 3
University of Technology Computer engineering and information technology Department 2. Specify the center and the end of each axis. Command: ellipse Specify axis endpoint of ellipse or [Arc/Center]: c Specify center of ellipse: 20, 30 Specify endpoint of axis: 20, 20 Specify distance to other axis or [Rotation]: 5 4
University of Technology Computer engineering and information technology Department Exercise: Using the two methods drawing ellipse to draw the figure bellow: 5