In ArcGIS for Desktop, you are never working directly with actual CAD data. You can also use Query Builder to help you build and verify the expression. This tool uses an SQL expression input parameter that you can store with the model or type at runtime. In ModelBuilder, a common technique is to use the Feature Class To Feature Class tool as the first tool in the workflow. The advantage of working in a map document is that you can visually confirm your You can use the Identify window to determine which drawing layers or other CAD attributes uniquely distinguish the CAD features you want to load. In a map (.mxd) document, the best practice is to use Query Builder and save the query with the feature layer. Extracting CAD featuresĮxtracting CAD features is accomplished by creating a selection or by defining an SQL query that filters the geometry by drawing layer, color or line type, or other property attributes. The following sections discuss the tools and ETL strategies you can use to load CAD data into a geodatabase. Although different scenarios require different tools and strategies, workflows for loading CAD data follow a common ETL (extract, transform, and load) pattern. Many of them are the same tools you might use with native ArcGIS feature data stored in shapefiles and geodatabases. You can choose from several geoprocessing tools and data loaders to load CAD data into a geodatabase.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |