libDPE - A PHP Library to Generate Energy and Climate Performance Diagnostic Diagrams ​

I developed this library for the website of a real estate agency. The display of these diagrams is mandatory in real estate listings under French legislation.

The creation of this project required studying the legal texts related to these diagrams, as well as considering the official resources associated with them (templates, fonts).

Here are some examples of the diagrams that can be generated with libDPE:

libDPE allows you to generate PNG files of these diagrams or return them directly to the user's browser via a PHP script that serves the content with the image/png MIME type.

All the details are available on the project's GitHub page.