x2svg is software to graphically lay out files like XML Schema, DTDs and Java property files as scalable vectorgraphics (SVG). Diagrams can be converted into PDF, PNG, TIF and EPS files directly from within x2svg. A simple GUI and ant integration exist.
aSVERD is a little system for generating Entity Relationship Diagrams (ERD) as Scalable VectorGraphics (SVG). SVG can be viewed and zoomed in a Web Browser. The diagrams can be edited with an SVG editor and round-trip updated against the database.