Graphics Reference
In-Depth Information
2.8 PRECISION METHOD 3: OBJECT SNAP (OSNAP)
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AutoCAD keeps a full record of each object in each drawing.
Object Snap (OSNAP)
is a tool that helps you utilize these records when
you need to specify points on objects already precisely drawn without
knowing the points.
For example,
Assume we have the following shape:
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We have no information about any object in this shape.
We were asked to draw a precise line from the midpoint of the right line
to the tangent to the top of the circle.
The command to draw is
Line
. AutoCAD asked us to specify the first
point and we typed
mid
and pressed [Enter] (or [Spacebar]), then
went directly to the upper line and a yellow triangle appeared. We
clicked:
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AutoCAD then asked us to specify the next point. We typed
tan
and pressed
[Enter] (or [Spacebar]), then went directly to the top of the circle and a
yellow circle appeared. We clicked it and then pressed [Enter] to end the
command: