GeoRSS feeds may contain any combination of points, lines, and polygons. Web clients use a GeoRSS to JSON request service. This service returns one to many feature collections with different geometry types. The returned JSON specifies the point, lines, and polygons symbols used to display the features in that layer.
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. |
| layerType | String indicating the layer type. Valid value of this property GeoRSS |
| lineSymbol | Defined by the GeoRSS to JSON request service. If the GeoRSS feed does not have lines, this property is not added to the layer JSON. |
| 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. |
| pointSymbol | Defined by the GeoRSS to JSON request service. If the GeoRSS feed does not have points, this property is not added to the layer JSON. |
| polygonSymbol | Defined by the GeoRSS to JSON request service. If the GeoRSS feed does not have polygons, this property is not added to the layer JSON. |
| 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, please use layerType. |
| 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. |
Example
Live sample web map showing GeoRSS as an operationalLayer
{
"url": "http://dl.dropbox.com/u/2654618/data-mixed.xml",
"id": "GeoRSS_2755",
"type": "GeoRSS",
"layerType": "GeoRSS",
"title": "GeoRSS Layer",
"visibility": true,
"opacity": 1,
"blendMode": "darken",
"polygonSymbol": {
"color": [
243,
110,
32,
64
],
"outline": {
"color": [
243,
110,
32,
255
],
"width": 1.5,
"type": "esriSLS",
"style": "esriSLSSolid"
},
"type": "esriSFS",
"style": "esriSFSSolid"
},
"lineSymbol": {
"color": [
243,
110,
32,
255
],
"width": 1.5,
"type": "esriSLS",
"style": "esriSLSSolid"
},
"pointSymbol": {
"angle": 0,
"xoffset": 0,
"yoffset": 11.25,
"type": "esriPMS",
"url": "http://utility.arcgis.com/sharing/rss?image=true",
"imageData": "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",
"contentType": "image/png",
"width": 18.75,
"height": 22.5
}
}