how to freezing and thawing layers in AutoCAD

1.
a)Open AutoCAD application from desktop shortcut menu.
b)Select new document icon from quick access toolbar and open “ansi-a” template.
c)Now click on model layout tab.
d)Click on “LINE” command from draw panel.
e)Now move the cursor to 4 units in X axis and 2 units in Y axis and pick the line stating point.
f)Now move the cursor 2 units horzontally rights side and pick another point of the line.
g)Like wise above steps move the cursor or cross hair to required points shown bellow image and pick the points to get the required shape.
h)Finally enter “C” to close the line.
i)And draw circle by using Circle command.
j)And draw the center lines.
k)Then apply it’s layers accordingly.

Now select layers drop down arrow to see the total layer types and select Objects layer.

2.Now click on layer drop down arrow and click on sun mark shown near center named layer and see the drawing. Here we can observe the center lines are disappear

After clicking the sun mark the elements containing with center layer are disappear. See the image below.

3. Again click on layer drop down arrow to view layers. And click on the snowflake icon to unfreeze the elements.

See the image below after unfreezing. The center lines again appered.

4.Now save the drawing by pressing save icon from quick access tools.

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