xlay

This repository contains some code that can read Sprint Layout (xlay) files.

Overall LAY file structure

Overall board record structure

NOTE: The number of connections (M) is determined as number of objects of type THT_PAD or SMD_PAD. In other words, connection record are skipped for non-pad objects.

LAY file specific data types

It seems that Sprint Layout is written in Delphi. This may be the reason that LAY files use some uncommon data types:

• fixstr: Length prefixed fixed size ANSI strings
• varstr: Length prefixed variable size ANSI strings
• u8bool: Short (one byte) boolean type