AutoCAD

How to Create Calculations in AutoCAD?

Understanding Calculations in AutoCAD

Calculating within AutoCAD involves numerous operations, ranging from simple arithmetic to complex geometric measurements. The software provides a comprehensive set of tools that allow users to perform these calculations efficiently within their designs.

Formulating in AutoCAD

To create a formula in AutoCAD, follow these steps:

1. **Access the Field Tool**: Begin by navigating to the location in your drawing where you want the formula result to appear.

2. **Insert a Field**: Use the command for inserting fields, often found in the Ribbon under the Annotate tab. Look for the field option and select it.

3. **Choose Your Formula Type**: In the Field dialog, choose from options such as Sum, Average, or Count depending on what you intend to calculate.

4. **Specify the Data Range**: Click to select the range of cells or values that your formula will reference.

5. **Finalize the Formula**: Confirm your selections and click OK to insert the field. The calculated value should now be displayed in your drawing.

Performing Basic Calculations

Basic calculations such as addition and multiplication can be executed directly in AutoCAD’s interface:

1. **Select Dimensions**: Highlight the dimensions or values you wish to compute.

2. **Use the Quick Calculator**: Access the Quick Calculator from the Tools menu or by using the shortcut. This tool allows for various calculations.

3. **Multiply Values**: If you need to multiply, you can adjust the dimensions you selected. Open the Power Dimensioning tab, navigate to Edit Dim Text, and enter the multiplication factor in the Linear Scale box.

Calculating Area and Perimeter

Measuring area and perimeter within AutoCAD can be done as follows:

1. **Use the MEASUREGEOM Command**: This command enables you to measure dimensions directly in your drawing. Activate it from the Command line or the Measure tab.

2. **Select Object**: Click on the objects that define the area or perimeter you want to measure.

3. **View Results**: The area and perimeter will be displayed in the Command line as soon as you select the object(s). You can also use the BOUNDARY command to create a closed shape and the LIST command to retrieve detailed measurements.

Advanced Calculations with AutoCAD

For more complex calculations like converting units or summing varied object types, follow these steps:

1. **Scientific Calculator Access**: AutoCAD includes a scientific calculator that can handle unit conversions and complex arithmetic. Activate it through the Tools menu.

2. **Quick Select**: For counting objects, right-click in the drawing area, choose Quick Select, and specify the type of objects to quantify.

3. **Summation Formula**: In situations where you need to sum multiple areas or lengths, use the Field dialog once again to create a new field using the Sum formula and specify the range directly.

Setting Up Commands in AutoCAD

Customizing commands in AutoCAD allows you to streamline your workflow:

1. **Navigate to the Customize Tab**: Open the Customize tab to access the Command List.

2. **Create New Command**: Click on the button to create a new command. A default command will appear in both the Command List and Properties pane.

3. **Define the Command Name**: Enter a meaningful name for your command in the Properties pane.

4. **Apply Your Changes**: Click Apply to save your new command settings, making it ready for use.

FAQ

**1. Can AutoCAD perform complex calculations, such as conversions?**
Yes, AutoCAD has built-in functionalities such as the scientific calculator and various field commands that allow you to perform complex calculations and unit conversions efficiently.

**2. How do I calculate the area of a complex shape in AutoCAD?**
For complex shapes, use the BOUNDARY command to create a closed polygon around the shape. After creating the boundary, you can use the LIST command to obtain the area measurement.

**3. Are there pre-defined formulas I can utilize within AutoCAD?**
AutoCAD allows users to define and utilize formulas within fields for various calculations, including summing values and calculating averages using the Field dialog.

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.