Stack rasters

This endpoint allows you to stack raster data in multiple layers/timestamps. You can retrieve the raster stack as raw data of style it as a png.

Description	Retrieves a tif or png file of the (styled) raster stack.
Endpoint	/path/raster/timestamp/tile/{z}/{x}/{y}?token={token}
Method	GET

Access Level Rules

Minimum Access Level

view

Processing Units

Minimum processing units

1

Parameters

Name	Description	Required	Default
stack	An array of objects. Each object should have a pathId, timestampId and bandNumber. The mentioned bands will be stacked in the order they are in the array.	true
style	An id of a style to apply. Or an object describing a valid style. Valid object for style can be found here: https://docs.ellipsis-drive.com/developers/api-v3/path-raster/styles/add-style	true
x	The x coordinate of the tile	true
y	The y coordinate of the tile	true
z	The zoom level of the tile	true
token	User’s login token. Default null.	false, token can also be passed in the header
mask	A geojson polygon in wgs84 coordinates to mask the tileService	false

Example of a valid stack request

// example of a valid stack:
stack=[
        {"pathId": "69661175-6aa6-4258-8114-f3f4093561ca", "timestampId": "e2233ac8-5357-48bd-a785-694af842e48e", "bandNumber": 1},
        {"pathId": "848b0931-62a3-41eb-a3c7-4c8203313381", "timestampId": "2c7ffef4-b906-4a64-921a-7e3493c6739e", "bandNumber": 1}
    ]

This creates a raster with two bands. Each band coming from the specified band, timestamp and layer combination.

Mind that the stack is only defined in places where all the bands making up the stack are defined. All other location will be transparent. If the referenced bands do not intersect anywhere there visualization will be transparent everywhere!

A valid style for the above mentioned stack would be:

{
        "method":"formula",
        "name":"Visualization of my stack"
        "parameters":{      
          "formula": "band2 - band1",
          "alpha": 1,
          "continuous": true,
          "transitionPoints":[{"color":"#2A5C84","value":25},{"color":"#74AE56","value":129.5},{"color":"#FFE733","value":234},{"color":"#FF8C01","value":338.5},{"color":"#ED2938","value":443}]
    }
}

This visualizes the difference between the first and second band in the stack.