Raster Layer Definition

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

Referenced by: Image Service Layer (ArcGISImageServiceLayer), 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.
drawingInfo	Contains the drawing information.
elevationInfo	Define how features and other scene elements are aligned to ground or other layers. Elevation info affects the image service layer only when using a flow renderer.
presetRenderers[]	An array of preset renderers for image service layers, each contains associated information of multidimensional variable or raster function template.

Raster Layer Definition with presetRenderers 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"
      }
    }
  ]
}

Raster Layer Definition with flowRenderer and elevationInfo Example

{
  "elevationInfo": {
    "mode": "relativeToGround",
    "offset": 400
  },
  "drawingInfo": {
    "renderer": {
      "visualVariables": [],
      "density": 0.8,
      "color": [
        0,
        255,
        255,
        255
      ],
      "maxPathLength": 200,
      "trailWidth": 1,
      "flowSpeed": 10,
      "trailLength": 100,
      "flowRepresentation": "flow_from",
      "type": "flowRenderer",
      "authoringInfo": {
        "type": "flow",
        "visualVariables": []
      }
    }
  }
}