AutoCAD

How to Display Length in AutoCAD?

Understanding Length Display in AutoCAD

Displaying the length of lines and objects in AutoCAD is a crucial function for accurate drafting and design. This guide will walk you through several methods to effectively display lengths, ensuring your designs are both precise and professional.

Using the LENGTHEN Command

The LENGTHEN command enables quick access to the lengths of existing lines and entities. To utilize this feature:

  1. Open the command line by pressing Ctrl+1 or typing ‘LENGTHEN’ in the command bar.
  2. Follow the prompts to select the line or object whose length you wish to determine.
  3. AutoCAD will display the length in the command line, providing instant feedback.

Live Length Display Using F12

For a real-time length display while drawing:

  1. Activate the dynamic input feature by pressing F12.
  2. As you draw a line, the length will be shown next to the cursor, allowing you to monitor the size of your drawn elements live.

Measuring Length with the Distance Tool

For measuring distances between specific points:

  1. Navigate to the Home tab.
  2. Click on Utilities within the Measure panel.
  3. Select Distance from the Measurement Tools. This will prompt you to select two points.
  4. Click on the first point, then the second point, and AutoCAD will display the distance between them in the command line.

Calculating Angle and Length Simultaneously

If you need to determine both the length and angle of a line:

  1. Find the Home tab and click on the Draw panel to select the Line tool.
  2. Place your starting point by clicking on the drafting area.
  3. Move your cursor in the desired direction. Type the length followed by an angle in the command line. For instance, for a length of 6.5 units at an angle of 30 degrees, type 6.5< and @30.
  4. Press Enter to confirm your input.

Adjusting Dimension Display Settings

If your dimensions are not appearing as expected, you may need to modify the dimension style settings:

  1. Open the Dimension Style Manager from the Annotate tab.
  2. Select the dimension style you wish to edit and click on Modify.
  3. Navigate to the Fit tab and adjust the Scale for Dimension Features if necessary.
  4. Confirm your changes by clicking OK, then close the Dimension Style Manager.

FAQs

1. What should I do if AutoCAD is not displaying line lengths?

Check your layer settings to ensure visibility. Turn on any layers that may be hidden, and adjust the text style if dimensions appear but the text does not show properly.

2. How can I quickly measure angles in AutoCAD?

Use the Analyze tab and select Angle Information. You can click to select two lines or input points as necessary to measure the angle accurately.

3. What is the recommended number of layers for effective drawing management in AutoCAD?

It's advisable to create several layers beyond the default Layer 0 to enhance organization in your drawings, allowing for distinct separation of different elements and features.

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.