Chapter 7: Working With Geometry


          How to Find Angles and Distances

          Understanding the Angle, Distance, and Polar Function

          Using Trigonometry to Solve a Problem

          Gathering Information

          Finding Points Using Trigonometry

          Conclusion

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Introduction

It is inevitable that your work with AutoLISP will involve some geometric manipulations. With the box program in chapter 2, you have
already created a program that derives new point locations based on user input. There, you learned how to take coordinate lists apart,
then re-assemble them to produce a new coordinate. In this chapter, you will be introduced to other AutoLISP functions that will help
you determine locations in your drawings coordinate system and in the process, you will review some basic trigonometry.

Next -> How to Find Angles and Distances