• 1. Computer Graphics
  • 1.1. Screen
    • 1.1.1. Have a Look!
    • 1.1.2. Pixels and Resolution
    • 1.1.3. Coordinate System of a Screen
    • 1.1.4. Unit-Summary
  • 1.2. Colours
  • 1.3. Rasterisation
  • 1.4. Anti-Aliasing
  • 1.5. Geometric Transformations
  • 1.6. Curves
  • 1.7. Paths
  • 1.8. Self Assessment
  • 1.9. Summary
  • 1.10. Recommended Reading
  • 1.11. Glossary
  • 1.12. Bibliography
  • 1.13. Metadata

1.1. Screen

Learning Objectives

• You will be able to chart the coordinate system of the screen.
• You will be able to distinguish between images with a high resolution and images with a low resolution

Introduction

On screens all objects are visualised with tiny picture elements, so called pixels. The screen is composed of variable numbers of pixels depending on the screen type. The number of pixels of an image can vary as well depending on the image resolution. In this unit we will deepen these aspects. Since the coordinate system of a screen differs from the coordinate system of a printed medium that you are normally used to, we will show and explain you the main aspects of the screen's coordinate system as well as the resolution of a screen.

A monitor

Update: 26.1.2012 (eLML) - Contact - Print (PDF) - © CartouCHe 2004-2007 (Creative Commons) - layout based on YAML