Designers often need to move the cursor coordinates
to define a specific point when drawing a line, a circle or any other graphics. Without an Auto
tracking tool, you would have a lot of trouble doing even the simplest
dimension accurately. In ZWCAD+, the polar tracking and the object snap command can help pinpoint a
specific point.
Polar tracking
Polar Tracking will guide the movement of
your pointer along specified angles. When polar tracking is turned on, guides will
display on the screen automatically at the polar angle increment that you
specify. For example, if you draw a line with polar tracking turned on and the
angle increment set at 45 degrees, the rubber-banding line displays at 45
degree increments.
l Enabling polar tracking
To toggle polar tracking on and off at any
time, simply make sure the Polar
Tracking button on the status line is activated, or you can press F10.
Right click on the Polar Tracking radio button, and select Settings to display
the settings dialog box.
l Polar tracking setting
CAD users can choose among different
increment angles. To track using all angles, click the Track using all polar angle settings button. Click
the OK button when finished.
Object Snap
Object Snap enables you to quickly select
exact geometric points on existing entities without having to know the exact
coordinates of those points. With Object Snap, you can select the endpoint of a
line or arc, the center point of a circle, the intersection of any two
entities, or any other geometrically significant position. You can also use
object snaps to draw entities that are tangential or perpendicular to an
existing entity.
l Object snap setting
To turn on Object Snap, you can press F3
or activate the Object Snap radio button on the status line. Right click on the
OSNAP button on the ribbon to prompt the setting dialog box.
Taking Midpoint as an example, when the
Midpoint is selected, the cursor will move to the center of a circle or an arc.
Please take note that to use OSNAP
effectively, you must know what points an object has that you are able to snap
to. A line for example has 3 points that you can snap to: a midpoint and two
endpoints. A circle has 5 points: a center and 4 quadrants.
Guess you may be
interested:
How to Use Distance Query Processor in Autocad?
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