tilelive-imageserver

This is a tilelive source for ArcGIS ImageServer endpoints.

The documentation used for implementation is here.

Usage

imageserver: URIs are supported, with the following parameters available:

• source: the ImageServer URL
• rasterFunction: the rasterFunction provided by the source server to apply to the data. (Optional)
• minzoom: optional, default 0
• maxzoom: optional, default 14
• baseTileSize: base tile size in pixels (default 256)
• scale: integer to scale base tile size (default 1)
• format: image format, currently png and jpg are supported.

Examples:

• USGS 3DEP Multidimensional Hillshade: imageserver:///?source=https://elevation.nationalmap.gov/arcgis/rest/services/3DEPElevation/ImageServer/&rasterFunction=Hillshade Multidirectional&maxzoom=14

Source/Data Testing

Local testing:

1. node test.js should place a single tile in the root directory if sucessful.

Testing with tessera:

1. Install this source globally with npm install -g .
2. Install tessera
3. Run tessera with the tilelive module included: tessera --require=tilelive-imageserver "imageserver:///?source=https://elevation.nationalmap.gov/arcgis/rest/services/3DEPElevation/ImageServer/&rasterFunction=Hillshade Multidirectional&maxzoom=14"
4. View localhost:8080 in browser