Download PDF by Jack Xu: Practical WPF Graphics Programming
By Jack Xu
Книга functional WPF snap shots Programming useful WPF images Programming Книги Графика, дизайн, звук Автор: Jack Xu Год издания: 2007 Формат: pdf Издат.:UniCAD Страниц: 690 Размер: 3.31 ISBN: 978-0-9793725-1-3 Язык: Английский0 (голосов: zero) Оценка:Все что надо по графике WPF в одной книге... Понятнакак букварь. Примеры всех возможностей 3D и second графики. Построение: графиков, 3D примитивов и многого другого.Не пожалеете.
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Extra resources for Practical WPF Graphics Programming
All coordinates and sizes in the default WPF system are measured in units of 96 dots per inch (DPI), called device-independent pixels. In this system, you can create adaptive layouts to deal with different resolutions, making sure your controls and graphics objects stretch accordingly when the window is stretched. The rendering area in WPF can be defined using layout elements deriving from the Panel class, including Canvas, DockPanel, Grid, StackPanel, VirtualizingStatckPanel, WrapPanel, etc. However, it is also possible to use a custom layout component as the rendering area by overriding the default behavior of any of these layout elements.
You can zoom in or zoom out by moving the slider with your mouse. When you increase the scaling factor further, you might obtain unexpected results, such as those shown in the figure. Namely, the graphics objects are extended outside of the canvas1 control specified by the black border line. Chapter 2: WPF Graphics Basics in 2D | 21 Figure 2-8 The line and rectangle objects are scaled. This can easily be fixed by specifying the ClipToBounds property of the canvas to true:
This area of interest is called the “Window”. In order to draw graphics objects on the screen, you need to map this “Window” to the default WPF coordinate system. We call this mapped “Window” in the default 28 | Chapter 2: WPF Graphics Basics in 2D coordinate system a 2D viewport. The concept of the window and viewport in 2D space is illustrated in Figure 2-12. Figure 2-11 Draw a line and a polyline in the custom coordinate system. Figure 2-12 Window and viewport in 2D space. Chapter 2: WPF Graphics Basics in 2D | 29 In the previous section, we defined the default limits for the X and Y axes in the custom (world) coordinate system.
Practical WPF Graphics Programming by Jack Xu