rasterLayerDefinition | Web Map Specification

An object that defines the drawing information for image service based layers.

Referenced by: Image Service Layer (ArcGISImageServiceLayer), Image Service Vector Layer (ArcGISImageServiceVectorLayer), Tiled Image Service Layer (ArcGISTiledImageServiceLayer), Web Coverage Service Layer (WCS)

Properties

Property	Details
activePresetRendererName	The name of the active preset renderer, if the image service layer’s current renderer is from preset renderers. Must be one of the following values: `String` `Null`
definitionExpression	SQL-based definition expression string that narrows the data to be displayed in the layer. Must be one of the following values: `String` `Null`
drawingInfo	Contains the drawing information.
presetRenderers[]	An array of preset renderers for image service layers, each contains associated information of multidimensional variable or raster function template.

Example

{
  "drawingInfo": {
    "renderer": {
      "colorRamp": {
        "type": "algorithmic",
        "algorithm": "esriHSVAlgorithm",
        "fromColor": [
          0,
          0,
          255,
          255
        ],
        "toColor": [
          0,
          255,
          0,
          255
        ]
      },
      "dra": false,
      "gamma": [
        1
      ],
      "max": 255,
      "min": 0,
      "statistics": [
        [
          -1,
          1,
          0,
          0.1
        ]
      ],
      "useGamma": false,
      "stretchType": "minMax",
      "type": "rasterStretch"
    }
  },
  "activePresetRendererName": "NDVI",
  "presetRenderers": [
    {
      "name": "NDVI",
      "method": "rasterFunctionTemplate",
      "value": "Raw NDVI",
      "bandIds": [
        0
      ],
      "renderer": {
        "colorRamp": {
          "type": "algorithmic",
          "algorithm": "esriHSVAlgorithm",
          "fromColor": [
            0,
            0,
            255,
            255
          ],
          "toColor": [
            0,
            255,
            0,
            255
          ]
        },
        "dra": false,
        "gamma": [
          1
        ],
        "max": 255,
        "min": 0,
        "statistics": [
          [
            -1,
            1,
            0,
            0.1
          ]
        ],
        "useGamma": false,
        "stretchType": "minMax",
        "type": "rasterStretch"
      }
    },
    {
      "name": "VARI",
      "method": "rasterFunctionTemplate",
      "value": "Raw VARI",
      "bandIds": [
        0
      ],
      "renderer": {
        "colorRamp": {
          "type": "multipart",
          "colorRamps": [
            {
              "type": "algorithmic",
              "algorithm": "esriHSVAlgorithm",
              "fromColor": [
                56,
                168,
                0,
                255
              ],
              "toColor": [
                255,
                255,
                0,
                255
              ]
            },
            {
              "type": "algorithmic",
              "algorithm": "esriHSVAlgorithm",
              "fromColor": [
                255,
                255,
                0,
                255
              ],
              "toColor": [
                255,
                0,
                0,
                255
              ]
            }
          ]
        },
        "dra": false,
        "gamma": [
          1
        ],
        "max": 255,
        "min": 0,
        "statistics": [
          [
            -0.2,
            0.2,
            0,
            0.1
          ]
        ],
        "useGamma": false,
        "stretchType": "minMax",
        "type": "rasterStretch"
      }
    }
  ]
}