There are many geoprocessing tools that work with CAD data. CAD drawings including AutoCAD Civil 3D and its design content can be a useful source of information to build asset views stored in ArcGIS from the construction and design information found in CAD files. Common CAD geoprocessing usesĭata migration is one of the primary uses of geoprocessing on CAD data sources. Geoprocessing tools that work with read-only files will also accept the CAD file as input. You can, for example, iterate through a folder of CAD drawings using the iterators of ModelBuilder, or treat a CAD file as a file in a Python script.
Geoprocessing tools that accept read-only datasets accept the CAD file feature dataset as valid input. You can use geoprocessing tools to further extract useful information from geometry and CAD element parameters as GIS data and create geometries and derived GIS features. Using tools such as Frequency can help you understand the composition of your CAD drawings and help in reporting such as building bills of materials and quantity takeoffs. CAD feature classes in analysis and GIS data creationĬAD feature layers and feature classes are valid read-only inputs to many analysis and data creation geoprocessing tools. Alternately, CAD feature classes can be defined as ArcGIS Pro feature layers with the Make Layer tool and used in scripts and models where the required input to a tool is a feature layer rather than a feature class. CAD feature classes as map layersĪdding a CAD dataset to a map generates a CAD group layer of feature layers that are organized by their source CAD layers by default. The automation of the analysis and conversion of CAD data can be accomplished using Python and ModelBuilder workflows, or you can use analysis tools directly on CAD feature layers without conversion. Geoprocessing tools such as Copy, Feature Class To Feature Class, Merge, Append, and Copy Features can all accomplish the task of permanently converting CAD in-memory feature classes to ArcGIS datasets such as geodatabases or shapefiles. The CAD feature dataset is a valid read-only dataset and its feature classes can be used by most geoprocessing tools that support feature layers. CAD feature classes in analysis and GIS data creationĪutoCAD (DWG/DXF) and Microstation (DGN) files are read directly as ArcGIS feature datasets and are valid input to geoprocessing tools, Python scripts, and ModelBuilder iterators as read-only datasets and feature classes without a need to convert the data.
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