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How to create an empty group layer in ArcPy?
You can create a .lyr file which contains a single empty group layer and add it to your map: groupLayer = arcpy.mapping.Layer(r”EmptyGroupLayer.lyr”) arcpy.mapping.AddLayer(dataFrame, groupLayer, “BOTTOM”) Then you can use the AddLayerToGroupfunction to add another layers under your group layer. Share Improve this answer Follow
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 add layers to a group layer?
Adding group layer, renaming it from folder name, then adding layers to it from that folder, using ArcPy/Python? – Geographic Information Systems Stack Exchange Adding group layer, renaming it from folder name, then adding layers to it from that folder, using ArcPy/Python?
How does the updatelayer function work in ArcGIS?
The UpdateLayer function allows you to replace all layer properties available in the ArcMap Layer Properties dialog box using a layer ( .lyr) file that contains the customizations. Group layers and other sublayers (for example, annotation classes) are treated just like ordinary layers.
How to export ArcMap layers to LYR files with Python?
Although it’s a short script, it shows how easy it is to use Python with ArcPy to jump into ArcMap layer properties. To add some variation, we will only export layers that sit at the root level of the map’s table of contents. The child layers are still exported inside their parent LYR file.
What’s the difference between lyrx and group layers?
There is a notable difference. Older .lyr files only store a single layer or a single group layer at the root level although a group layer can have multiple layers or group layers within it. Newer .lyrx files can store multiple layers and/or group layers at the root level.
Can a.lyrx file save multiple layers?
Newer .lyrx files can store multiple layers and/or group layers at the root level. Therefore, a reference to a layer file will be a reference to a list of layers. The ArcGIS Pro application can read legacy .lyr file types, but it can only save to .lyrx file types.