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The Code: ArcMap Layers to LYR Files with PythonĬommenting inside the code sample will help explain most of of the details.
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For example, the name of a layer nested inside a group layer within another group layer may look something like Group1\Group2\LayerName. In 'Python ArcGIS 10.1 Programming Cookbook' you’ll learn how to write geoprocessing scripts using a pragmatic approach designed around an approach of accomplishing specific tasks in a Cookbook style format. If a layer does belong to a group layer, the group layer structure will be included in the long name. If a layer does not belong to a group layer, the long name will equal the layer name. Long Name Property: This property is valuable when trying to determine whether a layer belongs to a group layer. Use features like bookmarks, note taking and highlighting while reading Programming ArcGIS 10.1 with Python Cookbook.
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Download it once and read it on your Kindle device, PC, phones or tablets. If they are equal, it’s a root level layer (group or stand-alone). Programming ArcGIS 10.1 with Python Cookbook - Kindle edition by Pimpler, Eric. How can we determine if we are at a root level? Line 17 in the code below checks if the layer.name value is equal to the layer.longName value. This is the requirement and approach that will be used in this code example. Saved group layers do include the details about the children layers.
This could be a single layer of data, or a group layer. Export just the layers at the root level of the table of contents.Small changes to the code below would be required for this approach. This means we would export single layers, or the deepest children of group layers (could have a group of groups with layers, etc). Export just the Layers that have data, and none of the group layers.Most of the time it seems like people are looking to accomplish one of the following: Second, the ArcPy module is required to read the Map document (MXD) contents.Īs mentioned earlier, we could export every layer, including all child layers. We need the Python OS module for easy access to some path options - this isn’t required, but makes life easy. The goal is to export LYR files by looping through the table of contents.
Pretty basic requirements for this task and based on using almost any version of ArcGIS 10.x (tested on 10.3.1 and 10.5). The child layers are still exported inside their parent LYR file. Through this tutorial I aim to give you guys a very in-depth understanding of the cap. To add some variation, we will only export layers that sit at the root level of the map’s table of contents. Welcome to this Complete Beginners Guide to ArcGIS Desktop tutorial. Although it’s a short script, it shows how easy it is to use Python with ArcPy to jump into ArcMap layer properties. A tiny Python script to show how to export ArcMap Layers to LYR Files with Python.
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