Book Image

Practical Autodesk AutoCAD 2023 and AutoCAD LT 2023 - Second Edition

By : Jaiprakash Pandey, Yasser Shoukry
Book Image

Practical Autodesk AutoCAD 2023 and AutoCAD LT 2023 - Second Edition

By: Jaiprakash Pandey, Yasser Shoukry

Overview of this book

AutoCAD is one of the most versatile software applications for architectural and engineering designs and the most popular computer-aided design (CAD) platform for 2D drafting and 3D modeling. This hands-on 2nd edition guide will take you through everything you need to know to make the most out of this powerful tool, from a simple tour of the user interface to using advanced tools. Starting with basic drawing shapes and functions, you'll get to grips with the fundamentals of CAD designs. You’ll then learn about effective drawing management using layers, dynamic blocks, and groups, and discover how to add annotations and plots like a professional. As you progress, the book will show you how to convert your 2D drawings into 3D models and shapes. You’ll also discover advanced features, such as isometric drawings, drawing utilities for managing and recovering complex files, quantity surveying, and multidisciplinary drawing files using xRefs. Finally, you’ll focus on rendering and visualizing your designs in AutoCAD. By the end of this book, you’ll have developed a solid understanding of CAD principles and be able to work with AutoCAD software confidently to build impressive 2D and 3D creations.
Table of Contents (21 chapters)
1
Part 1: Introduction and 2D Drafting
6
Part 2: Customization, Collaboration, and Using Reusable Content
12
Part 3: 3D Modeling

Making an ellipse

Conic curves are formed when a cone is intersected by a plane. As shown in the following diagram, when a plane not parallel to the base of a cone cuts it in a specific way, an ellipse is made. An example of an ellipse in the real world is the path of planets around the sun:

Figure 3.24: The conic curves made by intersecting cones along different planes

There are two ways of making an ellipse in AutoCAD. You can make it with a center and an endpoint or with endpoints of the axes. Both the ellipse commands are in the Draw panel in the Home tab under the Ellipse flyout, as shown:

Figure 3.25: The Center and Axis, End ellipse options in the Draw panel

To make a center ellipse, select the Center option from the ellipse flyout in the Draw panel:

Figure 3.26: The A ellipse is made with the Center ellipse option and the B ellipse is made with the Axis, End option

The command line will now prompt...