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Select the AutoCAD 2007 option on the Program menu or select the AutoCAD 2007 icon on the Desktop.

In this chapter, the different ways of creating lines and circles in AutoCAD 2007 are examined.ĥ Starting Up AutoCAD 2007 1. As one gains some experience in creating lines and circles, similar procedures can be applied to create other geometric entities. Ellipses and splines can be constructed by connecting arcs with different radii. Triangles and polygons are planar figures bounded by straight lines. In examining the different types of planar geometric entities, the importance of lines and circles becomes obvious. In learning to use a CAD system, lines and circles are the first two, and perhaps the most important two, geometric entities that one should master the skills of creating and modifying.Ĥ Straight lines and circles are used in almost all technical designs.

In order to become effective in using a CAD system, we must learn to create geometric entities quickly and accurately. The method and number of operations that are required to accomplish the constructions are different from one system to another. Many of the constructions used in technical designs are based upon two-dimensional planar geometry. This will require learning some new concepts and skills as well as learning a different vocabulary.ģ All CAD systems create designs using basic geometric entities.

It is necessary to begin with the basic alphabet and learn how to use it correctly and effectively through practice. Shih Oregon Institute of Technology MultiMedia CD by Jack Zecher Indiana University Purdue University Indianapolis Schroff Development Corporation SDCPUBLICATIONS MultiMedia CD by Jack Zecher An audio/visual presentation of the Tutorial exercises INSIDE: Visit our website to learn more about this and other books: Copyrighted Material Copyrighted Material Copyrighted Material Copyrighted Material AutoCAD 2007 Tutorial 1-1 Chapter 1 AutoCAD Fundamentals Create and Save AutoCAD Drawing Files Use the AutoCAD Visual Reference Commands Draw.Ģ Using the LINE and CIRCLE Commands Use the ERASE Command Define Positions Using the Basic Entry Methods Use the AutoCAD Pan Realtime Option Copyrighted Material Copyrighted Material Copyrighted Material Copyrighted Material 1-2 AutoCAD 2007 Tutorial Introduction Learning to use a CAD system is similar to learning a new language. 1 AutoCAD 2007 Tutorial First Level: 2D Fundamentals Text by Randy H.