Một ứng dụng có thể sử dụng phương pháp để xác định tỷ lệ của tất cả các thành phần màu sắc. Ví dụ, đoạn mã sau đây tạo ra một cây bút hoàn toàn mờ đục màu xanh lá cây và bàn chải. Xem Chương 3 cho thêm chi tiết về các phương pháp này. | This document was created by an unregistered ChmMagic please go to http to register it. Thanks. Team LiB PREVIOUS I NEXT This document was created by an unregistered ChmMagic please go to http to register it. Thanks Team LiB 4 PREVIOUS NEXT This document was created by an unregistered ChmMagic please go to http to register it. Thanks The Graphics Class and Transformation In Chapter 3 we saw that theGraphics class provides some transformation-related members. Before we move to other transformation-related classes let s review the transformation functionality defined in the Graphics class as described inTable . We will see how to use these members in the examples throughout this chapter. The Transform property of the Graphics class represents the world transformation of aGraphics object. It is applied to all items of the object. For example if you have a rectangle an ellipse and a line and set the Transform property of the Graphics object it will be applied to all three items. The Transform property is a Matrix object. The following code snippet creates aMatrix object and sets theTransform property Table . Transformation-related members defined in the Graphics class Member Description MultiplyTransform Method that multiplies the world transformation of a Graphics object and aMatrix object. The Matrix object specifies the transformation action scaling rotation or translation . ResetTransform Method that resets the world transformation matrix of aGraphics object to the identity matrix. RotateTransform Method that applies a specified rotation to the transformation matrix of aGraphics object. ScaleTransform Method that applies a specified scaling operation to the transformation matrix of a Graphics object by prepending it to the object s transformation matrix. Transform Property that represents the world transformation for aGraphics object. Both get and set. TransformPoints Method that transforms an array of
