rok4 2.2.3

Python core libraries for ROK4 project

ROK4 Python libraries

The rok4 package help to use ROK4 project concepts, like Tile Matrix Sets, data pyramids or layers.

Installation

Required system packages :

• debian : apt install python3-rados python3-gdal

The rok4 package is available on :

• PyPI : pip install rok4
• GitHub : pip install https://github.com/rok4/core-python/releases/download/<version>/rok4-<version>-py3-none-any.whl

Usage

from rok4.tile_matrix_set import TileMatrixSet

try:
    tms = TileMatrixSet("file:///path/to/tms.json")
except Exception as exc:
    print(exc)

Following environment variables could be used, by module :

• storage : more details in the module developer documentation
  • ROK4_READING_LRU_CACHE_SIZE : Cache size (0 for no limit)
  • ROK4_READING_LRU_CACHE_TTL : Cache validity time (0 for no limit)
  • ROK4_CEPH_CONFFILE : Ceph configuration file
  • ROK4_CEPH_USERNAME : Ceph cluster user
  • ROK4_CEPH_CLUSTERNAME : Ceph cluster name
  • ROK4_S3_KEY : Key(s) for S3 server(s)
  • ROK4_S3_SECRETKEY : Secret key(s) for S3 server(s)
  • ROK4_S3_URL : URL(s) for S3 server(s)
  • ROK4_SSL_NO_VERIFY : Disable SSL conrols for S3 access (any non empty value)
• tile_matrix_set :
  • ROK4_TMS_DIRECTORY : Root directory (file or object) for tile matrix sets
• style :
  • ROK4_STYLES_DIRECTORY : Root directory (file or object) for styles

More examples in the developer documentation