Advanced 2D Graphics
In Chapters 7 and 8 we learned how to use advanced imaging functions of the Image, Bitmap, and other classes defined in the System.Drawing and System.Drawing.Imaging namespaces. In this chapter we will discuss advanced two-dimensional GDI+ programming. The .NET Framework library defines this functionality in a separate namespace: System.Drawing.Drawing2D. Among the advanced 2D techniques we will discuss are blending, matrices, graphics paths, and gradient brushes.
Note
Before using any class discussed in this chapter, an application should reference the System.Drawing.Drawing2D namespace by adding the following line:
using System.Drawing.Drawing2D
Apart from blending, gradient brushes, graphics containers, graphics paths, and matrix-related classes, the System.Drawing.Drawing2D namespace provides many enumerations. Some of the enumerations we have discussed in previous chapters; the rest will be covered in this chapter.
Table 9.1 lists the classes provided by System.Drawing.Drawing2D. Several of these classes were mentioned in previous chapters. We will discuss them here in more detail.
|
Class |
Description |
|---|---|
|
AdjustableArrowCap |
An adjustable, arrow-shaped line cap. |
|
Blend |
A blend pattern used by linear gradient brushes. |
|
ColorBlend |
An array of colors and positions in a multicolor gradient. |
|
CustomLineCap |
A custom user-defined line cap. |
|
GraphicsContainer |
The internal data of a graphics container. The BeginContainer and EndContainer methods are used to save the state of a Graphics object. |
|
GraphicsPath |
A graphics path, which contains a series of connected lines and curves. |
|
GraphicsPathIterator |
A graphics path can have many subpaths. This class provides a way to iterate through them. |
|
GraphicsState |
Graphics object state, which is returned by the BeginContainer method. |
|
HatchBrush |
A hatch brush. Discussed in Chapter 4. |
|
LinearGradientBrush |
Linear gradient brush. Discussed in Chapter 4. |
|
Matrix |
A 3x3 affine matrix that represents a geometric transformation. |
|
PathData |
Contains the graphical data of a graphics path. |
|
PathGradientBrush |
A brush that fills a graphics path with a gradient. |
|
RegionData |
Data of a region. |
GDI+: The Next-Generation Graphics Interface
- GDI+: The Next-Generation Graphics Interface
- Understanding GDI+
- Exploring GDI+ Functionality
- GDI+ from a GDI Perspective
- GDI+ Namespaces and Classes in .NET
- Summary
Your First GDI+ Application
- Your First GDI+ Application
- Drawing Surfaces
- The Coordinate System
- Tutorial: Your First GDI+ Application
- Some Basic GDI+ Objects
The Graphics Class
- The Graphics Class
- Graphics Class Properties
- Graphics Class Methods
- The GDI+Painter Application
- Drawing a Pie Chart
Working with Brushes and Pens
- Working with Brushes and Pens
- Understanding and Using Brushes
- Using Pens in GDI+
- Transformation with Pens
- Transformation with Brushes
- System Pens and System Brushes
- A Real-World Example: Adding Colors, Pens, and Brushes to the GDI+Painter Application
Colors, Fonts, and Text
- Colors, Fonts, and Text
- Accessing the Graphics Object
- Working with Colors
- Working with Fonts
- Working with Text and Strings
- Rendering Text with Quality and Performance
- Advanced Typography
- A Simple Text Editor
- Transforming Text
Rectangles and Regions
- Rectangles and Regions
- The Rectangle Structure
- The Region Class
- Regions and Clipping
- Clipping Regions Example
- Regions, Nonrectangular Forms, and Controls
Working with Images
- Working with Images
- Raster and Vector Images
- Working with Images
- Manipulating Images
- Playing Animations in GDI+
- Working with Bitmaps
- Working with Icons
- Skewing Images
- Drawing Transparent Graphics Objects
- Viewing Multiple Images
- Using a Picture Box to View Images
- Saving Images with Different Sizes
Advanced Imaging
- Advanced Imaging
- Rendering Partial Bitmaps
- Working with Metafiles
- Color Mapping Using Color Objects
- Image Attributes and the ImageAttributes Class
- Encoder Parameters and Image Formats
Advanced 2D Graphics
- Advanced 2D Graphics
- Line Caps and Line Styles
- Understanding and Using Graphics Paths
- Graphics Containers
- Reading Metadata of Images
- Blending Explained
- Alpha Blending
- Miscellaneous Advanced 2D Topics
Transformation
- Transformation
- Coordinate Systems
- Transformation Types
- The Matrix Class and Transformation
- The Graphics Class and Transformation
- Global, Local, and Composite Transformations
- Image Transformation
- Color Transformation and the Color Matrix
- Matrix Operations in Image Processing
- Text Transformation
- The Significance of Transformation Order
Printing
- Printing
- A Brief History of Printing with Microsoft Windows
- Overview of the Printing Process
- Your First Printing Application
- Printer Settings
- The PrintDocument and Print Events
- Printing Text
- Printing Graphics
- Print Dialogs
- Customizing Page Settings
- Printing Multiple Pages
- Marginal Printing: A Caution
- Getting into the Details: Custom Controlling and the Print Controller
Developing GDI+ Web Applications
- Developing GDI+ Web Applications
- Creating Your First ASP.NET Web Application
- Your First Graphics Web Application
- Drawing Simple Graphics
- Drawing Images on the Web
- Drawing a Line Chart
- Drawing a Pie Chart
GDI+ Best Practices and Performance Techniques
- GDI+ Best Practices and Performance Techniques
- Understanding the Rendering Process
- Double Buffering and Flicker-Free Drawing
- Understanding the SetStyle Method
- The Quality and Performance of Drawing
GDI Interoperability
Miscellaneous GDI+ Examples
- Miscellaneous GDI+ Examples
- Designing Interactive GUI Applications
- Drawing Shaped Forms and Windows Controls
- Adding Copyright Information to a Drawn Image
- Reading and Writing Images to and from a Stream or Database
- Creating Owner-Drawn List Controls
Appendix A. Exception Handling in .NET
