Compute Pixel Location

Description

The computePixelLocation operation is performed on an image service resource that uses ArcObjects11 or ArcObjectsRasterRendering as the service provider. With given input geometries, it calculates the corresponding pixel location in columns and rows for an image based on input geometry. A prerequisite is that the raster catalog item has a valid icsToPixel resource. The result of this operation includes x- and y-values for the column and row of each input geometry. It can also include a z-value for the height at the given location if elevation information is associated with the catalog raster item.

At 10.8.1 and later, Catalog is no longer a required capability for this operation. Image services of georeferenced single raster datasets also support this operation. You can provide arguments to the computePixelLocation operation as query parameters defined in the parameters table below.

Request parameters

Example usage

Below is a sample request URL that demonstrates how to compute the pixel location for the first raster catalog item of the image service for two points.

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https://machine.domain.com:6443/webadaptor/rest/services/myAO11imageservice/ImageServer/ computePixelLocation?geometries={"geometries":  [{ "x": 491374.849829215906,"y": 3762865.05682404758,"spatialReference": {"wkid": 32611} }, {"x": 491483.5473642843,"y": 3763001.33978307154,"spatialReference": {"wkid": 32611}}],"geometryType":"esriGeometryPoint"}&rasterId=1&spatialReference=&f=pjson

JSON Response syntax

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{
  "geometries": [
    {<geometry 1>},
    {<geometry n>}
  ]
}

JSON Response example

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{
  "geometries": [
    {
      "x": -45.5617949605311878,
      "y": -31.7513701334796679,
      "z": 634.186505622650088
    },
    {
      "x": 5510.59714930129667,
      "y": 3674.28411545968675,
      "z": 633.867370170692766
    }
  ]
}