What Is Boundary Command in AutoCAD?

In AutoCAD, the Boundary command is a powerful tool that allows you to create a closed boundary around a specific area or region. It is commonly used in architectural drawings, civil engineering projects, and various other design and drafting applications.

What does the Boundary Command do?

The Boundary command helps you define and create a closed polyline or region by selecting a set of objects or existing geometry. It analyzes the selected objects and creates a boundary that encloses the entire area within those objects.

This command is particularly useful when you want to calculate areas, create specific regions for hatching or filling, or separate different sections of your drawing.

How to use the Boundary Command?

To use the Boundary command in AutoCAD, follow these steps:

  1. Launch AutoCAD and open the drawing where you want to create a boundary.
  2. Select the Boundary command from the Modify panel of the Ribbon, or type “Boundary” in the command line and press Enter.
  3. In the prompt, choose one of the available options:
    • Pick Points: Select individual points on existing geometry to define your boundary manually. This option gives you precise control over your boundary creation.
    • Select Objects: Choose existing objects as your boundary. AutoCAD will automatically detect closed boundaries within those selected objects.
    • Add: Add additional objects to an existing boundary.
    • Create Region: Convert your boundary into a region, making it suitable for applying hatching or other region-specific operations.
  4. After selecting your desired option, follow the on-screen prompts to complete the boundary creation process.

Tips for using the Boundary Command effectively:

Here are some tips to help you make the most of the Boundary command:

  • Accuracy: Ensure that your selected objects form a closed loop. Gaps or overlaps may result in unexpected boundaries.
  • Object Selection Order: The order in which you select objects can affect the resulting boundary. Experiment with different selection orders if you encounter issues.
  • Edit Boundaries: Once created, you can edit boundaries using various editing commands like Edit Polyline, Fillet, or Delete Segment.
  • Merging Boundaries: If multiple boundaries overlap and you want to create a single boundary, use the Hatch command with the option “Pick Points” to merge them together.

In conclusion,

The Boundary command is an essential tool in AutoCAD that allows you to create closed boundaries around specific areas or regions. By understanding how to use this command effectively and following best practices, you can enhance your drafting workflow and produce accurate and visually appealing drawings.

Experiment with different options and explore the possibilities of the Boundary command in AutoCAD. It will undoubtedly become an invaluable asset in your design toolkit!