https://github.com/m-lab/bigquery-maptiles

A service that manages the conversion of M-Lab BigQuery results into static world map tiles
https://github.com/m-lab/bigquery-maptiles

Last synced: about 1 month ago
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A service that manages the conversion of M-Lab BigQuery results into static world map tiles

• Host: GitHub
• URL: https://github.com/m-lab/bigquery-maptiles
• Owner: m-lab
• License: apache-2.0
• Created: 2019-08-23T21:13:00.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2023-08-22T23:11:01.000Z (over 1 year ago)
• Last Synced: 2024-10-29T14:53:41.587Z (about 2 months ago)
• Language: HTML
• Size: 10.7 KB
• Stars: 3
• Watchers: 14
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# bigquery-maptiles

Build container:

```sh

docker build -t bigquery-maptiles .

```

Generate input data:

```sh

docker run -e PROJECT=mlab-sandbox -v $PWD:/maptiles \

    -v ~/.config/gcloud:/root/.config/gcloud -it bigquery-maptiles \

    ./prep-geojson-input.sh mlab-sandbox

```

NOTE: if the html and tiles are served from different domains we'll need to

apply a CORS policy to GCS.

## CORS

NOTE: may not be needed if served from an iframe.

* create a GCS bucket for the tile data.

* set defacl on bucket:

  ```sh

  gsutil defacl set public-read gs://bigquery-maptiles-mlab-sandbox/

  ```

* set cors policy on bucket, so requests evaluate `Access-Control-Allow-Origin`

  headers correctly.

  ```sh

  gsutil cors set cors.json  gs://bigquery-maptiles-mlab-sandbox

  ```

  `cors.json` contains, a project-specific origin (origin URLs are examples):

  ```

  [

    {

      "origin": ["http://localhost:4000", "https://grafana.mlab-sandbox.measurementlab.net"],

      "responseHeader": ["Content-Type"],

      "method": ["GET", "HEAD", "DELETE"],

      "maxAgeSeconds": 3600

    }

  ]

  ```