Package dblayer implements the so-called a data access layer for the IntegrCiTy project. It aims to provide a link between the worlds of 3D semantic city models and technical simulation models.

This includes:

• retrieving/storing data from/to a database
• creating simulation models from information stored in a database
• retrieving/storing co-simulation setups from/to a database
• associating initial values and parameters of a simulator configuration with entries in the database and retrieving/storing them from/to the database

Examples for using package DBLayer can be found in subdirectory examples.

1. The basic functionality of the package (including access to PostgreSQL databases and the IntegrCiTy co-simulation platform ZerOBNL) can be installed from the command line:

pip install -e git+https://github.com/IntegrCiTy/dblayer#egg=dblayer

2. In addition, a working PostgreSQL implementation of the 3DCityDB has to be installed, including its extensions, the Energy ADE, the Utility Network ADE, the Scenario ADE and the Simulation Package. Such a database setup is referred to as extended 3DCityDB. See subfolder scripts for installation instructions.

NOTE: Consider to install the DBLayer package in a virtual environment (as suggested by the installation instructions for the zerobnl package).

Subfolder test contains extensive tests of the functionality provided by package dblayer. Install and run pytest to run the tests.

pip install pytest
pytest