Drawing Basics
Most computer-based drawing is done on a two-dimensional plane using a basic set of objects. These objects are like building blocks. In the hands of a competent craftsman, they can be manipulated to create interesting effects and complex shapes. But before we can build the skyscraper, we must first set the basic foundation.
Understanding Windows Coordinate Systems
The default coordinate system in Windows has the origin (0, 0) in the upper-left corner of the drawing surface. The x-axis extends to the right, while the y-axis extends downward. The pixel is the unit of measurement in the default coordinate system. To draw to a surface, you specify what pixels you want your monitor to “turn on” to create the graphic. For instance, a ...
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