AutoCAD

How to Divide Polygon in AutoCAD?

Techniques for Dividing Polygons in AutoCAD

Dividing a polygon in AutoCAD requires a systematic approach to achieve precise subdivisions. Here’s a detailed guide on how to accomplish this task effectively.

Step 1: Prepare Your Workspace

  • Open AutoCAD 2025 and set up your drawing environment by loading the relevant project.
  • Ensure that the polygon you intend to divide is visible on your workspace.

Step 2: Draw Your Polygon

  • If the polygon isn’t already defined, use the polygon tool found in the Home tab under the Draw panel.
  • Specify the center point and the number of sides to create your desired shape. Make sure it’s properly scaled according to your requirements.

Step 3: Define Division Points

  • Identify where you want to divide the polygon’s sides. For instance, if you aim to split it into equal parts, use the dimensions panel to calculate the division points accurately.

Step 4: Create Reference Lines

  • To facilitate the division, draw lines from the vertices or the calculated points to orient the cutting sections. These lines will guide where the polygon edges will be cut.
  • Use the Line tool from the Draw panel to connect the identified division points.

Step 5: Use the Split Tool

  • With the reference lines drawn, you can now split the polygon. Select the Modify tab and locate the Split tool.
  • Click on the polygon first and then on the lines to create the division.
  • For accurate results, ensure you confirm each cut by checking if AutoCAD prompts for confirmation.

Step 6: Final Adjustments and Cleanup

  • After splitting the polygon, delete any unnecessary reference lines to keep your drawing clean.
  • Review each section of the divided polygon to confirm that they align with your specifications.

Step 7: Save Your Work

  • Save the changes by navigating to File and selecting Save or using the shortcut Ctrl + S. Ensure you use a clear filename reflecting the updated drawing.

Frequently Asked Questions

Q1: How can I ensure that my divisions are equal?
To achieve equal divisions, use the measurement tools within AutoCAD to calculate points based on the total length of the polygon’s sides. Apply geometric constraints if necessary.

Q2: What if my polygon is irregular?
For irregular polygons, it’s often useful to first calculate the area and dimensions. Create a grid or reference points around the perimeter and measure distances between the intersections.

Q3: Is it possible to undo a split if I make an error?
Yes, you can easily undo any action in AutoCAD by typing UNDO in the command line or using the keyboard shortcut Ctrl + Z. Always ensure to save frequently to avoid losing progress.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.