Scalable Vector Graphics

Patterns are rendered as SVG — short for Scalable Vector Graphics — an XML-based vector image format and an open standard. While you don’t need to be an SVG expert, a basic understanding of the format will greatly help you to understand FreeSewing.

For example, the coordinate system and the way paths are structured are all related to the SVG drawing system, which is closely related to other 2D drawing technologies such as PostScript or PDF.