AutoCAD

How to Unhide Lines in AutoCAD?

Understanding Hidden Lines in AutoCAD

Hidden lines are crucial in technical drawings as they provide information about edges and surfaces that are not directly visible. They are represented by short dashes and help make interpretations of designs clearer.

Steps to Unhide Lines in AutoCAD

  1. Select the Viewport:

    • Click on the layout viewport where you have your drawing. This is essential to apply changes only to the specific view you want to affect.
  2. Access the Properties Palette:

    • Navigate to the View tab on the ribbon.
    • Locate and click on the Palettes panel to access the Properties palette. This palette contains options related to the selected viewport.
  3. Modify Shade Plot Settings:

    • Within the Properties palette, find the section titled Misc.
    • Look for the Shade Plot field. Here, you will have the option to choose different shading methods.
    • Change the setting to Legacy Hidden. This will allow hidden lines to be displayed appropriately in your drawing.
  4. Adjust Line Type Scales:

    • If your hidden lines still do not appear, ensure the correct line type scale is applied.
    • Select the line type that isn’t showing and open its properties.
    • Adjust the LTSCALE variable using the command line. Type LTSCALE, press Enter, and input a larger value if necessary. This setting controls the visibility of dashed lines.
  5. Using Commad for Object Isolation:

    • If certain lines are hidden due to object isolation, you need to restore them.
    • Right-click within the drawing area and look for the Isolate Objects option in the context menu.
    • Click on End Object Isolation. This command will allow all hidden objects to be visible again.
  6. Viewport Command for Paper Space:
    • If you want to view hidden lines specifically in paper space, type MVIEW into the command line.
    • When prompted, choose S for shade plot and then H for hidden.
    • Select the viewport that needs to display the hidden lines.

Frequently Asked Questions

What should I do if hidden lines are still not showing?

  • If hidden lines are still missing, ensure that your layers are turned on and not frozen. Check the layer properties for any visibility issues.

Can I recover hidden lines if I’ve accidentally deleted them?

  • If you’ve removed lines, you can use the Undo command to revert your last actions. Alternatively, if saved, you can open a previous version of the drawing.

Is there an easier way to manage visibility settings for multiple layers?

  • Use the Layer Properties Manager where you can bulk toggle visibility for various layers at once, making management much more efficient.

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.