AutoCAD Using Object Snap Tracking

Using Object Snap Tracking

Object Snap tracking is the movement of cursor along the trace lines originating from the key points of objects. Object Snap Tracking works only when the Object Snap mode is turned on. In the following example, you will learn to use Object Snap Tracking for creating objects.

Example:

 Select the Object Snap Tracking button from the Status bar.

(OR)

 Open the Drafting Settings dialog box and click the Object Snap tab.

 Select the Object Snap Tracking On check box and click OK button.

 Use the Line tool and draw the objects as shown below.

 Press the ENTER key twice to start drawing lines from the last point.

 Press the F8 key to deactivate the ORTHOMODE, if it is active.

 Move the cursor and place it on the endpoint of the lower horizontal line.

 Move the cursor vertically upwards; you will notice that a trace line is displayed as shown below.

 Click on the trace line to create an inclined line.

 Snap the cursor to the endpoint of the lower horizontal line and click.

 Right-click and select Enter.

 Click the Circle button on the Draw panel of the ribbon.

 Place the cursor over the top endpoint of the left inclined line and move horizontally right;

you will notice that a horizontal trace line is displayed, as shown.

 Move the cursor over bottom horizontal line to display a vertical trace line from its midpoint,

as show below.

Using Zoom tools

Using the zoom tools, you can magnify or reduce a drawing. You can use these tools to view the

minute details of a very complicated drawing. The Zoom tools can be accessed from the Menu Bar,

Navigation Bar, and Command line, as shown.

Zooming with a Mouse Wheel

Zooming using the mouse wheel is one of the easiest methods.

 Roll the mouse wheel forward to zoom into a drawing.

 Roll the mouse wheel backwards to zoom out of the drawing.

 Press the mouse wheel and drag the mouse to pan the drawing.

Using Zoom Extents

Using the Zoom Extents tool, you can zoom to the extents of the largest object in a drawing.

 Click Zoom > Zoom Extents on the Navigation Bar.

 You can also double-click on the mouse wheel to zoom to extents.

Using Zoom-Window

Using the Zoom-Window tool, you can specify the area to be magnified by selecting two points

representing a rectangle.

 Click Zoom > Zoom Window on the Navigation Bar.

 Create a window by selecting the first corner and the second corner; the area covered by the

window will be magnified.

Using Zoom-Previous

After magnifying a small area of the drawing, you can use the Zoom-Previous tool to return to the

previous display.

 Click Zoom > Zoom Previous on the Navigation Bar.

Using Zoom-Realtime

Using the Zoom-Realtime tool, you can zoom in or zoom out of a drawing in real time.

 Click Zoom > Zoom Realtime on the Navigation Bar; the cursor is changed to a magnifying

glass with plus and minus symbols.

 Press and hold the left mouse button and drag the mouse forward to zoom into the drawing.

 Drag the mouse backward to zoom out of the drawing.

Using Zoom-All

The Zoom All tool is used to adjust the drawing space to the limits set by using the LIMITS command.

 Click Zoom > Zoom All on the Navigation Bar; the drawing will be zoomed to its limits.

Using Zoom Dynamic

With the Zoom Dynamic tool, you can zoom to a particular portion of a drawing by using a viewing box.

 Click Zoom > Zoom Dynamic on the Navigation Bar; the drawing will be zoomed to its

limits. Also, a viewing box is attached to the cursor.

 Click and drag the cursor to define the shape of the viewing box.

 Left-click and move the cursor the area to be zoomed.

 Right-click and select Enter; the area covered by the viewing box is magnified.

Using Zoom-Scale

Using the Zoom-Scale tool, you can zoom in or zoom out of a drawing by entering zoom scale

factors directly from your keyboard.

 Click Zoom > Zoom Scale on the Navigation Bar. The message, “Enter a scale factor (nX or

nXP)” appears in the command line.

 Enter the scale factor 0.25 to scale the drawing to 25% of the full view.

 Enter the scale factor 0.25X to scale the drawing to 25% of the current view.

 Enter the scale factor 0.25XP to scale the drawing to 25% of the paper space.

Using Zoom-Center

Using the Zoom Center tool, you can zoom to an area of the drawing based on a center point and

magnification value.

 Click Zoom > Zoom Center on the Navigation Bar. The message, “Specify Center point”

appears in the command line.

 Select a point in the drawing to which you want to zoom in; the message, “Enter

magnification or height” appears in the command line.