Media layer displays one media on the map positioned by 4 control points.
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. |
| georeference | The georeference used to place a media in a MediaLayer. |
| id | A unique identifying string for the layer. |
| itemId | Optional string containing the item ID of the Media Layer item registered on ArcGIS Online or your organization's portal. |
| layerType | String indicating the layer type. Valid value of this property MediaLayer |
| maxScale | A number representing the maximum scale at which the layer will be visible. The number is the scale's denominator. |
| mediaType | Indicates the type of media the url points to. The currently only supported type is image in jpeg or png format. It is applicable only when url is defined.Valid value of this property image |
| 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. |
| title | A user-friendly string title for the layer that can be used in a table of contents. |
| url | URL to the media file. The url is relative when the media file is stored as an item resource. It is not applicable when itemId is defined. See related mediaType property. |
| 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. |
Example
Sample media layer with media stored as a resource in the web map item
{
"id": "MediaLayer_1234",
"layerType": "MediaLayer",
"mediaType": "image",
"url": "./resources/media/23ba39fd-e5fa-4169-a65f-1b0c8dc122ef.png",
"visibility": true,
"opacity": 1,
"title": "Cosmic Cliffs",
"blendMode": "multiply",
"minScale": 0,
"maxScale": 0,
"georeference": {
"coefficients": [
0.00041916284273128335,
-0.00012801254624143232,
-107.88221857339221,
-0.00011708772565063326,
-0.000023939400565098393,
38.006978138302806,
-0.000003076164047493454,
0.0000011840018297336857
],
"controlPoints": [
{
"x": 89,
"y": 1918
},
{
"x": 83,
"y": 101
},
{
"x": 1508,
"y": 97
},
{
"x": 1517,
"y": 1906
}
],
"height": 2048,
"spatialReference": {
"wkid": 4267
},
"width": 1585
}
}Example
Sample media layer with media stored in the associated Media Layer item (referenced in itemId)
{
"id": "MediaLayer_1234",
"layerType": "MediaLayer",
"itemId": "58a541efc59545e6b7137f961d7de883",
"title": "Cosmic Cliffs"
}Example
Sample media layer with media stored in the associated Media Layer item, and georeference override
{
"id": "MediaLayer_1234",
"layerType": "MediaLayer",
"itemId": "58a541efc59545e6b7137f961d7de883",
"title": "Cosmic Cliffs",
"georeference": {
"coefficients": [
0.00041916284273128335,
-0.00012801254624143232,
-107.88221857339221,
-0.00011708772565063326,
-0.000023939400565098393,
38.006978138302806,
-0.000003076164047493454,
0.0000011840018297336857
],
"controlPoints": [
{
"x": 89,
"y": 1918
},
{
"x": 83,
"y": 101
},
{
"x": 1508,
"y": 97
},
{
"x": 1517,
"y": 1906
}
],
"height": 2048,
"spatialReference": {
"wkid": 4267
},
"width": 1585
}
}