The Osnaps are also available on their own Object Snap toolbar.

The Osnaps are available from a flyout button on the Standard toolbar, see illustration on the right.

There are four basic methods of accessing the Osnaps: Have been drawn accurately and so you should always use Osnaps when you need to pick a point at a particular location.

Many AutoCAD commands rely upon the fact that objects This is because the circle has no solidity, it is only an outline.ДЄlthough you can get quite close to the result above by picking freehand you will never be able to pick as accurately as you can using Osnaps. One thing that often catches new users out is that when you want to snap to the centre of a circle, the cursor must pass over the circle's circumference. Notice also that when you move the cursor over a snap point the cursor jumps to the snap location.

As you have already seen, the Center Osnap marker is a circle and the Quadrant Osnap marker is a diamond. Notice that when you move the cursor close enough to an Osnap location, it is highlighted with an Osnap marker. When you use Osnaps you need only pick a point which is near to the point required because AutoCAD automatically snaps to the object location implied by the particular Osnap you use. The line is drawn with perfect geometric accuracy. You have now drawn a line from the exact centre of the circle to a point on the circle circumference vertically above the centre. Of (pick point P2 on the circumference of the circle) To point: QUA (this is the short-cut for the Quadrant Osnap) Of (pick point P1 on the circumference of the circle) Specify radius of circle or : (pick another point to draw the circle, the size is not important)ДЇrom point: CEN (this is the short-cut for the Center Osnap) Specify center point for circle or : (pick a point in the middle of the drawing window) Follow the command sequence below to draw a circle and then to draw a line from the center point of the circle to a point on the circle's circumference at the 12 o'clock position. This simple example is to give you an idea how Osnaps work. If you just need information quickly, use the QuickFind toolbar below to go straight to the information you need or select a topic from the contents list above. The tutorial also includes sections on tracking and the use of point filters. Following these examples is probably the best way to understand the logic of Osnaps and to get an idea how they might be used in drawing practice. There are a number of worked examples which demonstrate Osnaps in use. This tutorial describes the use of all the osnaps. For this reason, you must develop a good understanding of what the Osnaps are and how they work. Osnaps in AutoCAD are so important that you cannot draw accurately without them. For example, using Osnaps you can accurately pick the end point of a line or the center of a circle. Osnaps allow you to snap onto a specific object location when you are picking a point. The Object Snaps (Osnaps for short) are drawing aids which are used in conjunction with other commands to help you draw accurately.

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