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Restrict Cursor Movement
Several tools are available that you can use to restrict or lock the movement
of your cursor.
Adjust Grid and Grid Snap
To enhance drawing speed and efficiency, you can display and snap to a
rectangular grid. You can also control its spacing, angle, and alignment.
The grid is a rectangular pattern of lines or dots that covers the entire XY plane
of the user coordinate system (UCS). Using the grid is similar to placing a
sheet of grid paper under a drawing. The grid helps you align objects and
visualize the distances between them. The grid is not plotted.
Grid Snap restricts the movement of the crosshairs to intervals that you define.
When Snap is turned on, the cursor seems to adhere, or "snap," to an invisible
rectangular grid when you create or modify objects. Snap is useful for specifying
precise points with the arrow keys or the pointing device.
Grid mode and Snap mode are independent but are often used in combination
with each other.
Control the Display Style and Area of the Grid
You can display the grid either as a rectangular pattern of dots or as rectangular
pattern of lines. The grid displays dots when SHADEMODE is set to 2D
Wireframe. The grid displays lines when SHADEMODE is set to Hidden.
The LIMITS command controls the drawing area covered by the grid. As an
option, you can override the limits to make the grid cover the entire XY plane
of the user coordinate system (UCS). You can access this option in the Drafting
Settings dialog box or use the GRIDDISPLAY system variable.
Control the Frequency of Major Grid Lines
If the grid is displayed as lines rather than dots, darker lines called major grid
lines display at intervals. When working in decimal units or with feet and
inches, major grid lines are especially useful for measuring distances quickly.
You can control the frequency of major grid lines in the Drafting Settings
dialog box.
Use Precision Tools | 151
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