Voxel Layer

A voxel layer represents multidimensional spatial and temporal information in a 3D volumetric visualization. You can analyze the volume by slicing, creating sections or isosurfaces. For example, you can visualize atmospheric or oceanic data, a geological underground model, or space-time cubes as voxel layers.

Referenced by: operationalLayers

Properties

Property Details
disablePopup disablePopups allows a client to ignore popups defined by the service item.
id A unique identifying string for the layer.
itemId Optional string containing the item ID of the service if it's registered on ArcGIS Online or your organization's portal.
layerDefinition Additional properties that define drawing of a voxel layer.
See layerDefinition properties table.
layerType String indicating the layer type.
Valid value of this property Voxel
listMode To show or hide the layer in the layer list.
Valid values:
  • hide
  • show
showLegend Boolean value indicating whether to display the layer in the legend. Default value is true.
title A user-friendly string title for the layer that can be used in a table of contents. If this is not included, a title is derived from the service.
url The URL to the layer.
visibility Boolean property determining whether the layer is initially visible

layerDefinition properties

Property Details
sections Array of metadata about sections. A section is a static plane through the voxel layer showing the variable the section was created at.
style Voxel style describes how the layer will be drawn including rendering and voxel representions that will be visible.

voxelLayer Example

{
  "disablePopup": false,
  "id": "b8fd4a0871d4dc7822ac6d6bf233d46",
  "title": "ocean",
  "layerType": "Voxel",
  "url": "https://arcgis.com/tiles/0z60TleH1Y2qkUzY/arcgis/rest/services/ocean/SceneServer",
  "visibility": true,
  "layerDefinition": {
    "sections": [
      {
        "enabled": true,
        "id": 1,
        "href": "resources/sections/0ccc4cf611e1f0700111b066b939f366.bin.gz",
        "label": "Section 1",
        "point": [
          3,
          4,
          1
        ],
        "normal": [
          1,
          1,
          1
        ],
        "sizeInPixel": [
          32,
          32
        ],
        "variableId": 1
      }
    ],
    "style": {
      "currentVariableId": 0,
      "renderMode": "volume",
      "enableSections": true,
      "volumeStyles": [
        {
          "dynamicSections": [
            {
              "point": [
                10,
                5,
                2
              ],
              "normal": [
                -0.7808688094430305,
                -0.6246950475544243,
                0
              ],
              "label": "Section 1"
            }
          ],
          "volumeId": 0
        }
      ],
      "variableStyles": [
        {
          "variableId": 0,
          "transferFunction": {
            "alphaStops": [
              {
                "alpha": 0.5,
                "position": 0.25
              },
              {
                "alpha": 0.75,
                "position": 0.5
              }
            ],
            "interpolation": "nearest",
            "stretchRange": [
              327.131,
              2941.46
            ],
            "colorStops": [
              {
                "color": [
                  0,
                  48,
                  246,
                  255
                ],
                "position": 0
              },
              {
                "color": [
                  0,
                  52,
                  243,
                  255
                ],
                "position": 0.00392
              }
            ]
          }
        }
      ]
    }
  }
}

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