| URL | http://<imageservice-url>/rasterAttributeTable |
|---|---|
| Parent Resource | Image Service |
| Required Capability | Image |
Description
This resource is supported from 10.1 onwards.
The raster attribute table resource returns categorical mapping of pixel values (e.g. a class, group, category, or membership). This resource is supported if hasRasterAttributeTable property of the service is true.
Resource Hierarchy
Parameters
| Parameter | Details |
|---|---|
| f |
Description: The response format. The default response format is html.
Values: html | json |
Example Usage
Example 1: Return attribute table for a land cover image service.
http://myserver.arcgisonline.com:port/arcgis/rest/services/LandCover/ImageServer/rasterAttributeTableJSON Response Syntax
{
"objectIdFieldName" : "<objectIdFieldName>",
"fields" : [
{"name" : "<fieldName1>", "type" : "<fieldType1>", "alias" : "<fieldAlias1>", "length" : "<length1>"},
{"name" : "<fieldName2>", "type" : "<fieldType2>", "alias" : "<fieldAlias2>", "length" : "<length2>"}
],
"features" : [
<feature1>, <feature2>
]
}
JSON Response Example
{
"objectIdFieldName": "OBJECTID",
"fields": [
{
"name": "OID",
"type": "esriFieldTypeOID",
"alias": "OID"
},
{
"name": "Value",
"type": "esriFieldTypeInteger",
"alias": "Value"
},
{
"name": "Count",
"type": "esriFieldTypeDouble",
"alias": "Count"
},
{
"name": "ClassName",
"type": "esriFieldTypeString",
"alias": "ClassName",
"length": 50
},
{
"name": "Red",
"type": "esriFieldTypeSmallInteger",
"alias": "Red"
},
{
"name": "Green",
"type": "esriFieldTypeSmallInteger",
"alias": "Green"
},
{
"name": "Blue",
"type": "esriFieldTypeSmallInteger",
"alias": "Blue"
}
],
"features": [
{
"attributes": {
"OID": 0,
"Value": 11,
"Count": 19841817,
"ClassName": "open water",
"Red": 102,
"Green": 140,
"Blue": 190
}
},
{
"attributes": {
"OID": 1,
"Value": 12,
"Count": 662596,
"ClassName": "perennial ice/snow",
"Red": 255,
"Green": 255,
"Blue": 255
}
}
]
}