Tools to generate tiles from WMS or Mapnik, to S3, Berkeley DB, MBTiles, or local filesystem in WMTS layout using Amazon cloud services.
Project description
TileCloud Chain
The goal of TileCloud Chain is to provide tools around tile generation on a chain like:
Source: WMS, Mapnik.
Optionally using an SQS queue, AWS host, SNS topic.
Destination in WMTS layout, on S3, on Berkeley DB (bsddb), on MBTiles, or on local filesystem.
Features:
- Generate tiles.
- Drop empty tiles.
- Drop tiles outside a geometry or a bbox.
- Use MetaTiles.
- Generate the legend images.
- Generate GetCapabilities.
- Generate OpenLayers example page.
- Obtain the hash of an empty tile.
- In the future, measure tile generation speed.
- Calculate cost and generation time.
- In the future, manage the AWS hosts that generate tiles.
- Delete empty tiles.
- Copy files between caches.
- Be able to use an SQS queue to dispatch the generation.
- Post processing the generated tiles.
- ...
Legacy features:
- bsddb support
- sqlite (mbtiles) support
- mapnik support (should be updated for Python3)
Get it
Create the config file tilegeneration/config.yaml see as example.
Support
Only the latest release is supported and version < 1.11 contains security issues.
From sources
Build it:
git submodule update --recursive
python3 -m venv .build/venv
.build/venv/bin/pip install -r requirements.txt
.build/venv/bin/pip install -e .
.build/venv/bin/pip install -r dev-requirements.txt
Run prospector
.build/venv/bin/prospector
Run the tests
Setup your environment:
touch tilecloud_chain/OpenLayers.js
docker build --tag camptocamp/tilecloud-chain .
docker-compose -p tilecloud up
To run the tests:
docker-compose -p tilecloud exec test python setup.py nosetests --logging-filter=tilecloud,tilecloud_chain --attr '!'nopy3
Documentation
As documentation you can read the https://github.com/camptocamp/tilecloud-chain/blob/master/tilecloud_chain/USAGE.rst.
VSCode
You can add that in your workspace configuration to use the JSON schema:
{
"yaml.schemas": {
"../tilecloud-chain/tilecloud_chain/schema.json": [
"tilecloud-chain/tilecloud_chain/tests/tilegeneration/*.yaml"
]
}
}
Contributing
Install the pre-commit hooks:
pip install pre-commit
pre-commit install --allow-missing-config
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