developmentseed/ckanext-mvt

CKAN extension to generate Vector Tiles from vector data

ckanext-mvt

This extension contains two plugins that adds large-size GeoJSON previewing to CKAN by converting the resources to Mapbox Vector Tiles:

• A plugin that takes a GeoJSON, converts it to MVT and uploads it to S3
• A plugin to preview the S3 tiles

Requirements

Tested with CKAN 2.4

Installation

To install ckanext-mvt:

1. Activate your CKAN virtual environment, for example:

   . /usr/lib/ckan/default/bin/activate
   

2. Install the ckanext-mvt Python package into your virtual environment:

   pip install ckanext-mvt (doesn't currently work)
   

3. Add mvt to the ckan.plugins setting in your CKAN config file (by default the config file is located at /etc/ckan/default/production.ini).

4. Restart CKAN. For example if you've deployed CKAN with Apache on Ubuntu:

   sudo service apache2 reload
   

Config Settings

# S3 configuration
ckanext.mvt.s3.bucket = s3-bucket-name
ckanext.mvt.s3.access_key = S3_ACCESS_KEY
ckanext.mvt.s3.secret_key = S3_SECRET_KEY

# Max size the resource can be for processing
ckanext.mvt.max_size = 524288000

Development Installation

To install ckanext-mvt for development, activate your CKAN virtualenv and do:

git clone https://github.com/developmentseed/ckanext-mvt.git
cd ckanext-mvt
python setup.py develop
pip install -r dev-requirements.txt

ckanext-mvt's Issues

Improve Readme

More accurate:

• installation instruction
• configuration options

Layer switcher

Implement layer switcher

Store baselayer config in .ini

Add tests + CI