MapServer

​MapServer is an open source platform for publishing spatial data and interactive mapping applications to the web. MapServer allows you to render data from TileDB arrays and combine other sources and formats such as GeoJSON to render cartographic quality maps.
Installation
You can run the MapServer and TileDB examples as follows;
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docker run -it --rm -u 0 -v /local/path:/data tiledb/tiledb-geospatial /bin/bash
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MapServer configuration
We will use the following MapServer mapfile;
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MAP
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  IMAGETYPE      PNG
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  SIZE           400 300
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  EXTENT         -77.8751 34.1472 -77.7869 34.267
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  CONFIG         "TILEDB_CONFIG" "./aws.config"
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​
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  PROJECTION
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    "init=epsg:4326"
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  END
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​
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  WEB
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    METADATA
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      "wms_title" "TileDB tutorial"
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      "wms_onlineresource" "https://myhost/mapserv"
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      "wms_enable_request" "*"
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    END
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  END
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  LAYER
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    NAME    "tiledb_coastal"
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    TYPE    RASTER
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    DATA    "s3://tiledb-mapserver/tiledb_mosaic"
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    CONNECTIONOPTIONS
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      "TILEDB_CONFIG" "aws.config"
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    END
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    OFFSITE 0 0 0
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    PROJECTION
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      "init=epsg:4326"
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    END
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    METADATA
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      "wms_title" "TileDB Sample 2017 NOAA NGS Ortho-rectified Oblique Imagery of the East Coast"
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    END
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  END # tiledb_coastal raster layer ends here
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​
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END # end of map file
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And sample data from https://coast.noaa.gov/dataviewer/#/, in this case the 2017 NOAA NGS Ortho-rectified Oblique Imagery of the East Coast.
The use of CONNECTIONOPTIONS is in the MapServer 8.0 release.
The following GDAL commands are used to produce a single tiledb array from multiple sources.
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gdalbuildvrt mosaic.vrt *.tif
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gdal_translate -OF TILEDB -CO COMPRESSION=ZSTD -CO BLOCKXSIZE=1024 -CO BLOCKYSIZE=1024 mosaic.vrt tiledb_mosaic
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As in our TileDB and GDAL tutorials, we store the S3 credentials in an aws.config file. Note that this aws.config file should be stored in a location that is accessible by your web server but is not public.
To test rendering a map with MapServer we use the shp2img command;
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shp2img -m tutorial.map -l tiledb_coastal -e -77.82 34.17 -77.80 34.20 -s 250 250  -o ~/Desktop/test.png -map_debug 3
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We have tested this mapfile on an AWS m5a.2xlarge instance and successfully created a map from a query to a TileDB array stored on S3.

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Contents

Installation

MapServer configuration