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Showing content from https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-support-RasterInfo.html below:

RasterInfo | API Reference | ArcGIS Maps SDK for JavaScript 4.33

ESM: import RasterInfo from "@arcgis/core/layers/support/RasterInfo.js";

CDN: const RasterInfo = await $arcgis.import("@arcgis/core/layers/support/RasterInfo.js");

Class: @arcgis/core/layers/support/RasterInfo

Since: ArcGIS Maps SDK for JavaScript 4.12

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The raster attribute table associated with an imagery layer. It returns categorical mapping of pixel values such as class, group, or category, or membership.

Example

layer.when(function() {
  // accesses the raster attribute table of the layer
  let rasterAttributes = layer.serviceRasterInfo.attributeTable.features;
});

bandCount Property bandCount Number

Raster band count.

Since: ArcGIS Maps SDK for JavaScript 4.27 RasterInfo since 4.12, bandInfos added at 4.27.

This property provides additional information for each band in the raster. Raster products will include information such as the color name, wavelength range, the radiance gain, radiance bias, and solar irradiance. All other raster datasets will only contain the band index value.

Raster colormap that can be used to display the imagery layer. Each element in the array defines the pixel value and the red, green, and blue color values.

dataType Property dataType Stringreadonly

Raster data type controls how the data is rendered by default.

Value Description generic Uses the application defaults for resampling and stretching. elevation Applies bilinear resampling and a Min-Max stretch. thematic Applies nearest neighbor resampling and a Deviation stretch. processed No stretch is applied. scientific Uses the blue to red color ramp to display the data. vector-uv Uses the U (magnitude component) and V(direction component) components in the vector field renderer. vector-magdir Uses the magnitude and direction in the vector field renderer. standard-time Uses the blue to red color ramp to display the data --- pixel value represents time encoded using OLEDate.

Possible Values:"generic" |"elevation" |"thematic" |"processed" |"scientific" |"vector-uv" |"vector-u" |"vector-v" |"vector-magdir" |"vector-magnitude" |"vector-direction" |"standard-time"

declaredClass

Inherited

Property declaredClass Stringreadonly

The name of the class. The declared class name is formatted as esri.folder.className.

The minimum and maximum X and Y coordinates of a bounding box containing all the raster data.

hasMultidimensionalTranspose Property hasMultidimensionalTranspose Boolean

Since: ArcGIS Maps SDK for JavaScript 4.25 RasterInfo since 4.12, hasMultidimensionalTranspose added at 4.25.

Indicates whether the source multidimensional data has been transposed. This only applies to ImageryTileLayer that references multidimensional image service.

Since: ArcGIS Maps SDK for JavaScript 4.15 RasterInfo since 4.12, height added at 4.15.

Raster height (row count) in pixels.

Raster histograms return basic name-value pairs for number of bins, min and max bounding values, counts of pixels in each bin.

keyProperties Property keyProperties Object

Raster key properties.

Returns the multidimensional information associated with the raster service referenced in an imagery layer. If defined, it contains an information on variables and dimensions associated with the service. Multidimensional data is stored as variables where each variable is a multidimensional array represents data captured in multiple dimensions like times and depths/heights.

You can filter the multidimensional data with one or multiple dimensional slices by setting the mosaicRule.multidimensionalDefinition property on an ImageryLayer or by setting the multidimensionalDefinition property on an ImageryTileLayer or a WCSLayer.

Example

// update the statistics of the layer's stretch renderer.
const renderer = layer.renderer.clone();
 const dimensions = layer.rasterInfo.multidimensionalInfo;
// get the salinity variable's statistics
const salinity = dimensions.variables.find((variable) => variable.name === variableName);
renderer.statistics = salinity.statistics;
layer.renderer = renderer;

Since: ArcGIS Maps SDK for JavaScript 4.15 RasterInfo since 4.12, noDataValue added at 4.15.

The pixel value representing no available information. Can be a number (same value for all bands) or array (specific value for each band).

pixelSize Property pixelSize Object

Raster pixel size. Specifies the pixel size being identified on the x and y axis. Defaults to the base resolution of the dataset when not specified.

Properties

Pixel size along the x axis.

Pixel size along the y axis.

pixelType Property pixelType String

Pixel type for the raster data source.

Value Range of values that each cell can contain unknown Pixel type is unknown s8 -128 to 127 s16 -32768 to 32767 s32 -2147483648 to 2147483647 u8 0 to 255 u16 0 to 65535 u32 0 to 4294967295 f32 -3.402823466e+38 to 3.402823466e+38 f64 0 to 18446744073709551616

Possible Values:"unknown" |"s8" |"s16" |"s32" |"u1" |"u2" |"u4" |"u8" |"u16" |"u32" |"f32" |"f64" |"c64" |"c128"

Since: ArcGIS Maps SDK for JavaScript 4.27 RasterInfo since 4.12, sensorInfo added at 4.27.

The sensor information associated with an image service referenced by a layer.

The spatial reference of the raster.

Raster band statistics. These include the minimum value in the raster, maximum value, mean of all values, and standard deviation.

Properties

The minimum pixel value.

The maximum pixel value.

optional

The standard deviation of calculated pixel values.

optional

The average of calculated pixel values.

Since: ArcGIS Maps SDK for JavaScript 4.15 RasterInfo since 4.12, width added at 4.15.

Raster width (column count) in pixels.

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addHandles

Inherited

Method addHandles(handleOrHandles, groupKey)

Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, addHandles added at 4.25.

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

this.addHandles(handle);

// Destroy the object
this.destroy();

Parameters

Handles marked for removal once the object is destroyed.

groupKey *

optional

Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product. The object passed into the input json parameter often comes from a response to a query operation in the REST API or a toJSON() method from another ArcGIS product. See the Using fromJSON() topic in the Guide for details and examples of when and how to use this function.

Returns

Type Description * | null | undefined Returns a new instance of this class.

hasHandles

Inherited

Method hasHandles(groupKey){Boolean}

Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 4.25.

Returns true if a named group of handles exist.

Parameter

groupKey *

optional

A group key.

Returns

Type Description Boolean Returns true if a named group of handles exist.

Example

// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

removeHandles

Inherited

Method removeHandles(groupKey)

Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 4.25.

Removes a group of handles owned by the object.

Parameter

groupKey *

optional

A group key or an array or collection of group keys to remove.

Example

obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");

RasterMultidimensionalInfo Type Definition RasterMultidimensionalInfo Object

RasterMultidimensionalInfo contains dimensions for each variable in the service describing information about the images collected at multiple times, depths, or heights.

Properties

The multi dimensional variables. It stores information such as name, unit and dimensions. For example, a temperature variable can store temperature data and the salinity variable can store the salinity data measured daily at different depths.

Specification

Variable name.

optional

Variable description.

optional

Unit of the variable measured in.

A dimension may be used to represent real physical dimensions such as time or depth/height. It may also be used to represent more abstract quantities such as station id or station-time pair. For example, if your temperature data has a corresponding Date dimension field representing the day it was captured, and your salinity data has a Depth dimension field representing the depth at which it was measured, the Dimensions field for that variable would be Date and Depth.

optional

Variable statistics.

optional

Variable histograms.

Example

// update the statistics of the layer's stretch renderer.
const renderer = layer.renderer.clone();
 const dimensions = layer.rasterInfo.multidimensionalInfo;
// get the salinity variable's statistics
const salinity = dimensions.variables.find((variable) => variable.name === variableName);
renderer.statistics = salinity.statistics;
layer.renderer = renderer;

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