Keyhole Markup Language (KML) is an XML-based format for storing geographic data and associated content and is an official Open Geospatial Consortium (OGC) standard. KML is a common format for sharing geographic data with non-GIS users as it can be easily delivered on the Internet.
Referenced by: operationalLayers
Properties
| Property | Details |
|---|---|
| blendMode | Blend modes are used to create various effects by blending colors of top and background layers. normal blend mode is the default.Valid values: average, color, color-burn, color-dodge, darken, destination-atop, destination-in, destination-out, destination-over, difference, exclusion, hard-light, hue, invert, lighten, lighter, luminosity, minus, multiply, normal, overlay, plus, reflect, saturation, screen, soft-light, source-atop, source-in, source-out, vivid-light, xor |
| effect | Effect provides various filter functions to achieve different visual effects similar to how image filters (photo apps) work. |
| id | A unique identifying string for the layer. |
| itemId | Optional string containing the item ID if it's registered on ArcGIS Online or your organization's portal. |
| layerType | String indicating the layer type. Valid value of this property KML |
| maxScale | A number representing the maximum scale at which the layer will be visible. The number is the scale's denominator. |
| minScale | A number representing the minimum scale at which the layer will be visible. The number is the scale's denominator. |
| opacity | The degree of transparency applied to the layer on the client side, where 0 is full transparency and 1 is no transparency. |
| refreshInterval | Refresh interval of the layer in minutes. Non-zero value indicates automatic layer refresh at the specified interval. Value of 0 indicates auto refresh is not enabled. |
| 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. |
| type | Deprecated. Use layerType instead. |
| url | The URL to the layer. |
| visibility | Boolean property determining whether the layer is initially visible in the web map. |
| visibilityTimeExtent | Represents time extent that will control when a layer should be visible based on webmap's current time. Visibility time extent only affects the layer visibility and will not filter the data. |
| visibleFolders[] | Array of numeric IDs of folders that will be made visible. |
Example
Live sample web maps showing the KML layer as an operationalLayer
{
"id": "kml_9012",
"url": "http://rmgsc.cr.usgs.gov/outgoing/geomac/ActiveFirePerimeters.kml",
"visibility": true,
"opacity": 1,
"title": "ActiveFirePerimeters",
"type": "KML",
"layerType": "KML",
"visibleFolders": [
0,
1
]
}