In the example below: From the initial zoom, if 'fatal' is chosen as a severity level, I expect five features in England and two Scotland. In this tutorial, you will apply server-side and client-side SQL filters to the Trails feature layer. As the sample shows, an attribute filter is specified by defining a query in the local layer's Where property. After the graphics are created, they are added to a FeatureLayer. Add an event handler to the selectFilter element to get the selected sql expression and call the setFeatureLayerFilter function. answered May 12 '17 at 13:09. Include Inherited Members Include Protected Members. Bei der Erstellung einer Feature-Layer-Sicht entsteht ein neuer Feature-Layer. NOTE: Highlighting features does not add new graphics to the map, it simply highlights the feature as part of the FeatureLayerView. If you want to show the "excluded" features for reference, you can set the effect property on the FeatureLayerView. The intersects spatial relationship returns features in the layer view that intersect the filter geometry. The boundaries of the geometries intersect, but not their interiors. Client-side filters execute very quickly. The crosses spatial relationship returns features in the layer view when the interior of a filter geometry comes into contact with the interior or boundary of features in the layer view. Creates a new instance of this class and initializes it with values from a JSON object generated from a product in the ArcGIS platform. A feature layer is a grouping of similar geographic features, for example, buildings, parcels, cities, roads, and earthquake epicenters. Mesh geometry types are currently not supported. To learn how to build this app, visit the Create a starter app tutorial. The ArcGIS API for JavaScript uses AMD modules. In the MapViewModel.cs, the class initializer method will simply call a single method, InitializeMap(). The highlightOptions property can be used to change the color used to highlight the feature. As long as a filter is set on a single feature layer, the filter displays the expected results. The query object representing the layer's filters and other definitions. The InitializeMap()method will populate the map and set the initial viewpoint. Add the element to the top-right of the view. It's important to keep the module references and function parameters in the same order. Features can be points, lines, or polygons (areas). Supported Platforms. To learn how to access and display data using a query, visit the Query a feature layer tutorial. See the Using fromJSON() topic in the Guide for details and examples of when and how to use this function. Create a feature layer for the trails and add it to the map. Creates a new instance of this class and initializes it with values from a JSON object generated from a product in the ArcGIS platform. The geometry to apply to the spatial filter. Only features of the same geometry can be compared. Another form of filtering is to use the hitTest method on the view to find features at a given screen location. This sample shows how to create a Feature Layer from client side graphics. See the ArcGIS REST API documentation for examples of the structure of various input JSON objects. The filter will use that buffer to display features in the layer or layer view that adhere to the to the indicated spatial relationship. This ensures the best user experience when switching or updating fields for attribute filters. Configure the Filter widget This widget can be set to open automatically when an app starts. Follow below steps to achieve this- don't add feature layer on the map Create an empty map with basemap and add a graphics layer on it. | Privacy | Terms of use | FAQ, "esri/views/layers/support/FeatureFilter", // display rain gauges where their water percent is over 30%, // and if the gauges are completely contained by the 10-mile, Any properties can be set, retrieved or listened to. L.esri.Layer.FeatureLayer is used to visualize and query vector geographic data hosted in ArcGIS Feature Layers. FeatureLayer Class Events. Suppose I want to limit the extent of a feature layer to a geometry (say a circle). Collapse All Expand All Members Options: Show All Members Options: Filtered. Once a FeatureFilter object's properties are defined, it can be used to set the filter property of the layer view. The filter of SceneLayerView with 3D object scene layers only supports the spatial relationships contains, intersects and disjoint. . Is there a way to set a geometry filter on a esri.layers.FeatureLayer? L.esri.Layers.FeatureLayer. You can apply a server-side filter to limit the features returned from a feature layer by setting the definitionExpression. Create filters. The possible values for this parameter are described below and the images highlight the geometries returned for the specified spatial relationship for given geometries. In this section, you will learn how to select and highlight a sub-set of a feature service’s data. The envelope-intersects spatial relationship returns features in the layer view that intersect the envelope (or extent) of the filter geometry. They do not return geometry or attribute information associated with the filtered features. Explore the capabilities of the feature layer that directly connects to your data. Types of spatial relationships that can be validated. The spatial relationship is determined by whether the boundaries or interiors of a geometry intersect. For example, you may want to know if a polygon representing a county completely contains points representing settlements. The above code will load the entire data set and display all of its features on the map. Copyright © 2021 Esri. Indicates the layer's supported capabilities. For i As Integer = 0 To myFeatureLayer.SelectionCount - 1 myFeatureLayer.SelectedGraphics.ToList()(i).UnSelect() Next i ' Select the Graphic from the e object … Converts an instance of this class to its ArcGIS portal JSON representation. Specifies a search distance from a given geometry in a spatial filter. You can create filters on hosted feature layers, hosted feature layer views, ArcGIS Server feature service layers, and related tables in ArcGIS Server map service layers; you cannot create filters on map notes or features imported from a file. No boundary, visit the create a feature layer function and call the setFeatureLayerViewFilter function passing it the. 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