About GDL Center

GRAPHISOFT’s GDL knowledge base. GDL Center aims to aggregate the wealth of GDL knowledge in a single, easy-to-search website, and build a community for people interested in GDL.

Sign in, sign up

You can read all the pages and posts without registering and signing in, but signing in is necessary to use the forum or comment the articles. You’ll only need a GRAPHISOFT ID to use these functions. Register on this link or use the “Sign up” option in the top-right corner.

GDL documentation

You can find all official released GDL related manuals of GRAPHISOFT in the GDL Docs menu in the header. From version 19, the GDL reference guide can be found here as well.

GDL basics for beginners

There were many questions about how to start dealing with GDL, so we have prepared these lectures to help with the first steps, check them in Learning. The lectures are based on our previous university course, which helped many architects to start using GDL.

Tips and Tricks for advanced GDL developers

Many of us – GDL developers – usually have questions about how to solve specific tasks with the tools available in GDL. We would like to build a continuously expanding knowledge base of how to solve these kind of problems. You can discuss the provided solutions instantly under the posts. If you have any topic you would like to read about in Tips&Tricks you can request them in the forum, or directly in mail: gdlcenter@graphisoft.com.


In the Forums of the site you can discuss any topic you have in mind in “General discussions” or ask the GRAPHISOFT Library Team about specific problems concerning your library parts.
Read more about the forum’s functions and rules.

Questions and comments

GDL Center is developed and maintained by GRAPHISOFT Library Team. Please send enquiries about GDL Center to: gdlcenter@graphisoft.com.