Developing Drawing Strategies: Part 2 - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 221

FiGuRE 5.63 The Object Snap tab of the Drafting Settings dialog box
NOTE You can choose a different color for the markers if you want. If
you're using a dark background in the drawing area, use a bright color, such
as yellow. For a white background, try blue.
to do this, start the OPTIONS command, and choose the Color button from
the Drafting tab.
3. From the Object Snap tab of the Drafting Settings dialog box, click
the check boxes next to Endpoint, Midpoint, and Intersection.
Also ensure that the check box next to Object Snap On is selected
in the upper-left corner of the dialog box.
4. Click OK to close the dialog box.
The Endpoint, Midpoint, and Intersection osnaps will now be active
any time you're prompted to select a point on the drawing. You can
deactivate them by turning off the Object Snap button in the status
bar or by pressing F3.
Now you're ready to begin drawing the bathroom. The shower determines the
placement of the other two items, so let's start there.
Drawing a Shower unit
You'll start the shower unit with a rectangle and then trim away one corner. As
you start this exercise, check the status bar. The Polar Tracking, Object Snap,