There are many properties available in the ArcMap Layer Properties dialog box that are not exposed to the arcpy scripting environment (for example, display properties, field aliases, selection symbology, and so on). It includes the full workspace path and name of the dataset. The layer definition in JavaScript Object Notation (JSON) format. Returns a layer's data source connection information as a Python dictionary. If it is not valid, the connection will not be replaced. query now supports true curves in an input geometry parameter. Group layers and other sublayers (for example, annotation classes) are treated just like ordinary layers. Returns True if a layer's data source is broken. If this function is executed prior to opening a map document (.mxd) with the MapDocument function or a layer file with the Layer function, then SDE layers will render. If the connection to ArcGIS for Server is through a local area network (LAN), this value will be null. Not all layers support the contrast property (for example, annotation layers and fabric layers), so it is good practice to test for this ahead of time using the supports method. Returns True if a layer is a group layer. For more information about working with the CIM and samples, see Python CIM Access. A layer's maximum scale threshold for 2D maps and its maximum distance above ground for 3D maps. Enter any value between +100 percent and -100 percent. Provides the ability to set or get the layer's minimum scale threshold. Layer definition query and symbology not updating using arcpy - what am I missing? A definition query is a SQL statement where clause that limits the data available for display, query, or other data operations (buffers, intersections, etc.) Provides the ability to get or set the brightness value. Extrudes 2D features in a layer to display 3D symbology. A string that includes the location and name of the output layer (.lyr) file. Note: Python Lists are used for setting the oidList but Python Sets get returned from the getSelectionSet method on the Layer object. Similar to the example above, since some SDE layers may be secured with password information, a temporary SDE connection file is created. The default, normal brightness, is 0 percent. The supports property will return a True if a layer supports that property. Returns True if a layer is a raster layer. It then uses time information (start time and end time) to calculate the time extent of a time-enabled layer. A layer's brightness value. Used to determine if a particular layer type supports a property on the layer object. A transparency value of more than 90 percent usually results in the layer not being drawn at all. The name of a particular layer property that will be tested. There are numerous types of layers and not all of them support the same properties. Applies an SQL query to a database, and the results are represented in either a layer or table view. The da cursors require you to list the fields you want to work with. A value of True will return the layer's symbolized extent; otherwise, it will return the geometric extent. The symbolized extent takes into account the area the symbology covers so that it does not get cut off by the data frame's boundary. A modified CIM definition object originally retrieved using getDefinition. gdb" # Make a layer from the feature class arcpy. ServiceType —The property displaying the type of service. The variable that references a layer file on disk will place a lock on the (.lyr) file. Not all layers support the brightness property (for example, group layers and feature layers), so it is good practice to test for this ahead of time using the supports method. The Layer object is essential for managing layers that reside within a map document (.mxd) or within a layer (.lyr) file. The layer definition in JavaScript Object Notation (JSON) format. For example, a map with a single group layer that contains three sublayers will return a list of four layer names, the group layer being the first and the three sublayers being the second, third, and fourth. Créé 07 mars. File geodatabases are not a valid input workspace for this tool. A string that represents the major version of the CIM. Query layers will only work with enterprise databases. If a map layer is being referenced, a file name is not initially set, so you will need to use the saveACopy method instead. There are two ways of determining if a layer is a group layer. Returns True if a layer is a GIS service layer. If set to True, the workspace will only be updated if the replace_workspace_path value is a valid workspace. A z-value is calculated for each vertex of the feature's base, and the feature is extruded to the various z-values creating a multifaceted top. The following script will reference a layer (.lyr) file, find all layers called Highways, turns on labels, and save the results to a new layer file. The following script modifies the symbology for a layer in a map document. The default value will use the current version. To perform case-insensitive queries, set ignore_case to True. Layers can be referenced from within a project using the listLayers method on the Map class or in a layer file (.lyr or .lyrx) stored on disk using the listLayers method on the LayerFile class. There are numerous types of layers and not all of them support the same properties. Create a database view using SQL tools or ArcGIS Create Database View GP tool and then modify its definition as needed. Controls the display of a layer. The Layer object is essential for managing layers that reside within a map document (.mxd) or within a layer (.lyr) file. emailAddress = ?1 and u. Sets a layer's selection using a Python list of Object IDs. All layer types support this property. By default, queries are case sensitive. This method provides an easy way to manage a layer's selection. A layer's longName value will include the group name in addition to the layer name. Esri basemaps are an example. Rather than creating individual layer objects for all possible layer types and property combinations, a supports method was created to help identify which layer types support which properties. If you have access to the Beta program you can take a look at the "Make Query Layer" tool in 10.1 Beta. import arcpy # Create an in memory feature layer from a feature class. If set to False, the method will set the source to match the workspace_path, regardless of a valid match. Rather than having to work with different, individual layer objects for all possible layer types and property combinations, a supports method is available to help identify which layer types support which individual layer properties. This code sample is available for these platforms: WPF UWP FORMS IOS ANDROID. Second, you can evaluate the longName property. Each supported layer symbology class has its own unique set of properties. Setting metadata is dependent on the isReadOnly property value. Not all layers support the serviceProperties property (for example, layers that are not ArcSDE or web service layers), so it is good practice to test for this ahead of time using the supports method. A layer's full name including group layer and composite layer structure. Your GIS can host a variety of maps, web layers, analytical tools, apps and individual files.Using the gis module, you can search for, access and manage all your folders, contents and automate such maintenance workflows as scripts.. Enter any value between +100% and -100%. Provides access to connection information for ArcSDE and web service layers. The following script clears all layer definition queries and turns off labels for all layers in a map named Yosemite National Park. # arcpy. For a more detailed discussion, parameter information, scenarios, and code samples, please refer to the Updating and fixing data sources with arcpy.mapping help topic. Returns: number of objects in select() query. Python Sets or Lists can be used for the oidList but sets get returned from the getSelectionSet method on the Layer object. For more detailed discussion, parameter information, scenarios, and code samples, refer to the Updating and fixing data sources help topic. import arcpy, os arcpy.env.overwriteOutput = True grab = arcpy.GetParameterAsText(0)prep_list = grab.split(";" Does ESRI have a way to use PY to read data from a Query Layer data source? A Python set of object IDs to use along with the appropriate selection method. If your web tool replaces the service layers with staged vector layers after running ConvertWebMapToArcGISProject, updateLayerFromJSON will apply the renderer (or other layer properties) as specified in the webmap_json to the corresponding vector layers staged in the layout template. If set to True, the layer will draw; if set to False, the layer will not be drawn. In other words, secured layers will not be rendered in any output. Returns True if a layer will cause rasterization of other vector layers in the data frame when the map is printed or exported. import arcpy schoolsLayer = "Schools" suburbsLayer = "Suburbs" # get an update cursor as we will be changing values rows = arcpy.UpdateCursor(suburbsLayer) # loop through each suburb in the layer for row in rows: polygon = row.SHAPE arcpy.SelectLayerByLocation_management(schoolsLayer,"INTERSECT",polygon) for you. UserName —Property displaying the user name used to access a secured service. 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