Drawing a Pie Chart

Table of contents:

SUMMARY

In this chapter we have seen that the Graphics object plays a major role in drawing and represents a canvas to draw graphics curves, shapes, and images.

We started this chapter by discussing the Graphics class properties. Then we discussed various Graphics class methods, which are divided into three categories: draw, fill, and miscellaneous. We saw how to use the draw methods to draw lines, rectangles, ellipses, curves, images, paths, and other graphics objects. We also discussed differences between the draw and fill methods and how to use the fill methods to fill rectangles, ellipses, curves, and graphics paths. We then discussed miscellaneous methods, covering the Clear, MeasureString, FromImage, FromHdc, and FromHwnd methods.

This chapter also presented a couple of real-world applications, showing how to write an application to draw line and pie charts. We also used various methods and properties of the Graphics class to write a PaintBrush-like application, GDI+Painter. Using this application, you can draw lines, rectangles, and ellipses and save the resulting image as a bitmap file.

Having completed this chapter, you should have a good understanding of the Graphics class, its methods and properties, and how to use those methods and properties to write real-world applications.

Pens and brushes are two of the most frequently used objects in the graphics world. In this chapter we discussed pens and brushes briefly. Chapter 4 is dedicated to pens and brushes. You will learn how to create different kinds of pens and brushes to write interactive graphics applications. At the end of Chapter 4 we will add different pen and brush options to GDI+Painter, making it more interactive.

GDI+: The Next-Generation Graphics Interface

Your First GDI+ Application

The Graphics Class

Working with Brushes and Pens

Colors, Fonts, and Text

Rectangles and Regions

Working with Images

Advanced Imaging

Advanced 2D Graphics

Transformation

Printing

Developing GDI+ Web Applications

GDI+ Best Practices and Performance Techniques

GDI Interoperability

Miscellaneous GDI+ Examples

Appendix A. Exception Handling in .NET



GDI+ Programming with C#
GDI+ Programming with C#
ISBN: 073561265X
EAN: N/A
Year: 2003
Pages: 145

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