Sql Server Spatial Autocad May 2026

CREATE TRIGGER trg_CheckClosed ON dbo.Parcels INSTEAD OF INSERT AS BEGIN IF EXISTS (SELECT * FROM inserted WHERE Shape.STIsClosed() = 0) BEGIN THROW 50001, 'Polygon is not closed', 1; END -- Insert valid data END; | AutoCAD Expectation | SQL Server Reality | Fix | | :--- | :--- | :--- | | 10,000 lines (instant load) | 10,000 polygons (slow load) | Create a spatial index with BOUNDING_BOX matching your DWG extents. | | Annotations rotate with view | Text is static | Store annotation as separate geometry points; use Map 3D's Dynamic Annotation . | | Undo/Redo is infinite | Undo requires a commit | Set AutoCAD Autosave to 5 minutes. | | Coordinate system: assumed | Coordinate system: explicit | Always set SRID (Spatial Reference ID). For DWG feet: SRID = 0 (geometry). For lat/lon: SRID = 4326 (geography). | Code Sample: Convert a DWG Polyline to SQL Server Geometry If you are writing a .NET plugin for AutoCAD using C#, you can directly insert into SQL Server:

// Inside AutoCAD's Editor using (SqlConnection conn = new SqlConnection(connectionString)) sql server spatial autocad

conn.Open(); string wkt = polyline.ToWkt(); // Using Teigha or RealDWG APIs SqlCommand cmd = new SqlCommand( "INSERT INTO Features (Geom) VALUES (geometry::STGeomFromText(@wkt, 0))", conn); cmd.Parameters.AddWithValue("@wkt", wkt); cmd.ExecuteNonQuery(); CREATE TRIGGER trg_CheckClosed ON dbo