How To Get Area Of Polygon In AutoCAD?

Understanding Area Calculation in AutoCAD

When working with geometrical designs in AutoCAD, accurately measuring the area of polygons is often essential. This guide provides a step-by-step approach to determining the area of polygons, including complex shapes.

Utilizing the AREA Command

1. Access the Command: Start by opening your AutoCAD project. Type AREA into the command line and hit Enter.

2. Select Method: You’ll see options for how you wish to select your shape. Choose “Object” when prompted.

3. Select the Shape: Click directly on the boundary of the polygon whose area you wish to calculate. For closed shapes, AutoCAD will highlight the selected object.

4. View Results: After selection, the area will be calculated automatically. Results, including the perimeter, will display in the command line at the top of the screen.

Area Calculation for Irregular Shapes

In cases where the shape is irregular, you can also compute the area by breaking it down into simpler components. Follow these steps:

1. Divide the Shape: Identify segments in your irregular shape that can be categorized into basic shapes like triangles or rectangles.

2. Measure Individual Areas: Use the AREA command on each of these regular shapes.

3. Total the Areas: Sum the individual areas to obtain the total area of the irregular polygon.

Selecting Geometry for Accurate Area Computation

Proper selection of the area is crucial for accurate measurements. Two main selection methods are available:

1. Rectangular Selection:

   • Click once to start the selection box.
   • Drag your mouse to create a rectangle around the polygon and click again to finalize your selection.

2. Lasso Selection:

   • Click and hold the mouse button while dragging around the shape. Release the button to finalize the selection.

Choosing the Right Units in AutoCAD

The unit of measurement plays a crucial role in the accuracy of your area calculation. Upon setting up your project in AutoCAD 2025:

1. Unit Settings: Define your work units before starting your design. If using millimeters, for instance, ensure that all subsequent area measurements are reported in square millimeters.

2. Consistency: Maintain the same unit throughout your project to prevent discrepancies in measurements.

Resources for Advanced Area Calculations

For specific shapes or complex designs, various online tutorials and resources can guide you further:

• Watch tutorials on calculating areas of irregular shapes and polygons on platforms like YouTube.
• Familiarize yourself with various commands in AutoCAD that facilitate area calculations.

Frequently Asked Questions

1. Can I calculate the area of a group of shapes at once in AutoCAD?
Yes, you can use the BOUNDARY option with the AREA command to select multiple closed shapes in one go.

2. What should I do if my polygon overlaps with other elements?
Consider isolating the polygon by temporarily hiding or freezing other layers to avoid confusion during the selection process.

3. How do I change the unit of measurement for my AutoCAD drawing?
Access the “Units” dialogue box through the command line or the settings menu and adjust the Unit Type according to your project’s requirements.