What is the LONGNAME of a layer in ArcGIS?
A layer’s longName value will include the group name in addition to the layer name. For example, a layer named Layer1 in a group layer named Group1 will have a longName value of Group1\\Layer1. If the name value is equal to longName value, then the layer is not a group layer or the layer is not inside a group layer.
How to save a layer file in ArcGIS?
The layer object provides access to many of the common layer properties found in the ArcMap Layer Properties dialog box and it also provides methods for saving layer files. The Layer function, the ListLayers function and the listLegendItemLayers method on the Legend object all provide ways to reference a Layer object.
How do I delete a layer file in Python?
Currently, there is no alternative for secured web services. The variable that references a layer file on disk will place a lock on the ( .lyr) file. It is good practice to remove the object reference using the Python del command at the end of a script or within a Python try/except statement.
How does the listlayers function in ArcGIS work?
The ListLayers function returns index values that are generated from top to bottom as they appear in the table of contents or the way they appear in a layer ( .lyr) file. The same applies if a group layer is within another group layer.
How to determine if a layer is a group layer?
There are two ways of determining if a layer is a group layer. First, you can check to see if the layer supports the isGroupLayer property. Second, you can evaluate the longNameproperty. A layer’s longName value will include the group name in addition to the layer name.
How does get count work in ArcGIS Pro?
Returns the total number of rows for a table. If the input is a layer or table view containing a selected set of records, only the selected records will be counted. This tool honors the Extent environment. Only those features that are within or intersect the Extent environment setting will be counted.
Are there properties not exposed to ArcPy scripting environment?
Not all layer properties are accessible through the Layer object. 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).
When to return true in ArcGIS Network analyst layer?
Returns True if a layer is a feature layer. Returns True if a layer is a group layer. Returns True if a layer is an ArcGIS Network Analyst extension layer type. Returns True if a layer will cause rasterization of other vector layers in the data frame when the map is printed or exported.