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Lesson 30 Drawing Polygon & Pie

We have learned how to create the Graphics and the Pen objects to draw rectangle, ellipse , circle and text in the preceding Lessons, now we shall learn how to draw polygons and pie in Visual Basic 2015 IDE.

30.1: Drawing Polygons

Polygon is a closed plane figure bounded by three or more straight sides. In order to draw a polygon on the screen, we need to define the coordinates of all the points (also known as vertices) that joined up to form the polygon. The syntax to defines the points of a polygon with vertices A1, A2, A3,  A4…….An is as follows;

Dim A1 As New Point(X1,Y1)Dim A2 As New Point(X2,Y2)
Dim A3 As New Point(X3,Y3)
Dim A4 As New Point(X4,Y4)

Dim An as New Point(Xn,Yn)

To learn the details of drawing polygon and pie, we suggest you grab a copy of Visual Basic 2015 Made Easy.

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Visual Basic 2015 Made Easy is written by Dr. Liew, the webmaster of our popular online Visual Basic Tutorial, vbtutor.net. This book is a complete guide to mastering Visual Basic 2015, from beginner to intermediate programmers.  This book has been written to complement our free online Visual Basic 2015 tutorial with much more content. It is also an excellent reference text for high school or college-level computer science courses.  Reading this book will allow you to:  
  1. Understand the basic concepts of Visual Basic 2015 programming
  2. Create your own Visual Basic 2015 applications from scratch
  3. Get inspiration from a variety of interesting sample programs
  4. Modify the code samples easily to suit your needs
  5. Learn how to package and distribute your applications

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