AutoCAD

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Using Wipeout in AutoCAD

Wipeout is a powerful tool in AutoCAD that allows users to hide underlying objects within a specified area, effectively creating a mask. To utilize the Wipeout command, start by either typing WI on the command line or selecting the Wipeout option from the Draw menu. After initiating the command, define the area of interest by clicking and dragging your cursor. Complete the action by pressing the Enter key, and the designated area will be masked. Alternatively, you can create a Wipeout boundary using a polyline, which may offer more precision in defining irregular shapes.

Incorporating Wipeouts into Text

To add a Wipeout effect around text, you need to enter WIPEOUT in the command line and hit Enter. Next, select the offset option if you wish to adjust the distance from the text. You can control the visibility of the Wipeout frame surrounding the text by utilizing the WIPEOUTFRAME variable. Set this variable to 1 to display the frame or to 0 to hide it.

Understanding Wipeout Frame

A Wipeout frame creates a polygonal region that obscures objects beneath it, using the current background color. This frame can be toggled on or off, depending on your needs. You can choose to have the frame displayed onscreen while ensuring it remains hidden during printing.

Preventing Wipeout Frame from Printing

If you wish to exclude the Wipeout frame from appearing in printed versions of your drawing, access the settings through the Options dialog. Navigate to the Display tab and locate the option for showing the frame. Uncheck this option to ensure the frame does not appear in printed outputs. Remember to regenerate the drawing by typing REGEN in the command line to update the display.

Hiding a Wipeout

To hide an existing Wipeout object, follow these steps:

  1. Right-click anywhere in the drawing area to bring up the context menu.
  2. Select the Options setting from the menu.
  3. In the dialog box that appears, navigate to the Display tab. Find the section labeled Display Performance and adjust the "Show Text Boundary Frame Only" option as needed.
  4. Click OK to apply the changes and then type REGEN in the command prompt to refresh your drawing.

Converting a Polyline to Wipeout

If you have a closed polyline and want to convert it into a Wipeout, you can do this easily:

  1. Click on the Wipeout button in the Draw toolbar or select it from the Draw menu.
  2. Type WIPEOUT in the command line and press Enter.
  3. Follow the prompts to select your polyline as the boundary for the Wipeout mask.

Difference Between Text and MText in AutoCAD

Text and MText (multiline text) serve different purposes in AutoCAD. Regular text, often referred to as single-line text (TEXT or DTEXT), is limited to a single line with basic properties. Conversely, MText allows for more complex formatting, enabling users to include multiple lines and various fonts and styles within a single text object. MText is particularly advantageous when creating detailed annotations or notes in a drawing.

Stretching Text in AutoCAD

The TEXTFIT command is specifically designed for adjusting the size of existing single-line text. By using this command, you can stretch or compress text to fit within a defined area, such as a title block. To adjust the start point of the text, follow the prompts to select a new starting point, then define the endpoint.

Addressing Disappearing Text in AutoCAD

Should you encounter issues with blocks or text disappearing, particularly when editing attributed blocks, it’s often due to changes made to attribute values or repositioning elements. Care should be taken when modifying these attributes to avoid losing visibility.

Working with Regions in AutoCAD

Regions are essentially 2D areas created from closed loops of various objects, including polylines, lines, arcs, and circles. Each distinct closed loop is converted into its own region, which can then be manipulated separately in your drawings. Open or self-intersecting curves will not be converted into regions.

Applying Wipeouts to Viewports

To apply a Wipeout to a viewport, you will need to choose the "hidden" option or explore the other available options to see which best fits your requirements. Ensure that you’re working in the Layout or Sheet tab and navigate to the model space of the desired viewport before executing the wipeout command.

Creating Objects with Wipeout

To create a new Wipeout object, access the tool via the Draw toolbar. Follow the prompts to define the area to be acted upon, customizing the shape as needed.

Converting an Arc to a Line in AutoCAD

To convert an arc into a line segment, use specific commands or tools within AutoCAD. These features often allow for quick transformations, maintaining the integrity of your drawing while adapting elements as necessary.

The Main Difference Between Text and MText Commands

TEXT or DTEXT commands deal with creating single-line entities that maintain uniformity regarding fonts and spacing. On the other hand, the MText command allows for a multiline entity with capabilities that include diverse font options, paragraph formatting, bullet points, and numbered lists.

Understanding Multiline Text

Multiline Text (MText) provides functionality for creating longer text blocks, supporting indentation, lists, and multiple styling options. Unlike simple text that spans only one line, MText can accommodate a paragraph format, making it preferable for comprehensive documentation within AutoCAD.

FAQ

1. How can I control the visibility of Wipeout frames in AutoCAD?
You can control the visibility of Wipeout frames by using the WIPEOUTFRAME system variable, setting it to 1 to show the frame and 0 to hide it.

2. Can Wipeout be used effectively in layouts?
Yes, Wipeout can be utilized in layouts; just ensure you’re in the correct model space of the viewport for the Wipeout to mask the desired areas.

3. Will Wipeouts affect printing quality?
Wipeouts act as masks and will not affect underlying quality. Adjust the Wipeout frame settings to ensure they don’t appear in printed versions where not wanted.

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.