Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Applications use coordinate spaces and transformations to scale, rotate, translate, shear, and reflect graphics output. A coordinate space is a planar space that locates two-dimensional objects by using two reference axes that are perpendicular to each other. There are four coordinate spaces: world, page, device, and physical device (client area, desktop, or page of printer paper).
A transformation is an algorithm that alters ("transforms") the size, orientation, and shape of objects. Transformations also transfer a graphics object from one coordinate space to another. Ultimately, the object appears on the physical device, which is usually a screen or printer.
This chapter is divided into three topics:
- About Coordinate Spaces and Transformations
- Using Coordinate Spaces and Transformations
- Coordinate Space and Transformation Reference