How to Use the Erase Command in AutoCAD 2014
The following steps show you how to use the Erase command in command-first mode with several different selection options in AutoCAD 2014. The selection techniques used in this example apply to most AutoCAD editing commands:
Open a drawing that contains objects, or start a new drawing and create lines, arcs, or circles.
Don’t be too particular in drawing them because you blow them away in this step list.
Press Esc to make sure that no command is active and no objects are selected.
If any objects are selected when you start an editing command, the command, in most cases, operates on those objects (selection-first editing) instead of prompting you to select objects (command-first editing). It’s a good idea to use the command-first editing style until you’re thoroughly familiar with it. Later, you can experiment with selection-first editing, if you like. (Just reverse the sequence of commanding and selecting.)
Click the Erase button in the Modify panel on the Home tab.
AutoCAD displays the Select objects prompt at the command line, and if dynamic input is enabled on the status bar, the Dynamic Input tooltip.
Select two or three individual objects by clicking each one.
AutoCAD adds each object to the selection set. All the objects you select remain highlighted, and AutoCAD continues to display the Select objects prompt.
Specify a window selection box that completely encloses several objects.
Move the crosshairs to a point below and to the left of the objects, click, release the mouse button, move the crosshairs above and to the right of the objects, and click again.
All objects that are completely within the box are selected.
Specify a crossing selection box that completely encloses a few objects and cuts through several others.
Move the crosshairs to a point below and to the right of some objects, click, release the mouse button, move the crosshairs above and to the left of some of the objects, and click and release again.
All objects that are completely within, crossing through, or touching the box are selected. AutoCAD continues to display the Select objects prompt.
Type WP and press Enter to activate the WPolygon (Window Polygon) selection option.
AutoCAD prompts you to pick points that define the selection polygon.
Pick a series of points and press Enter.
After you press Enter, AutoCAD selects all objects that are completely within the polygon. AutoCAD continues to display the Select objects prompt until you press Enter.
Press Enter to end object selection.
AutoCAD erases all selected objects and returns to an empty command prompt.
Did you notice how you can use a combination of object selection methods to build a selection set and then press Enter to execute the command on the selected objects? Most AutoCAD editing commands work this way in command-first mode.
If after erasing a selection set, you realize that you didn’t mean to do away with so many objects, click the Undo command or button on the Quick Access toolbar to restore them. But AutoCAD has one additional unerase trick — the aptly named OOPS command. When you type OOPS and press Enter, AutoCAD restores the last selection set that you erased — even if you’ve run other commands after Erase.
The Erase command isn’t the only way to remove unwanted objects from the drawing. The easiest method in any workspace is to simply select an item and press the Delete key on the keyboard.