How To Draw A Line At An Angle In Autocad

We have seen in earlier how to use polar tracking to draw inclined lines with specific angle sin AutoCAD, but what happens if you desire to input your own value instead of using the value prefixed by AutoCAD?

Before we dive into the discipline matter, nosotros need to revise some trigonometry.

The concept of polar coordinates in AutoCAD obeys the principle of the trigonometric circle, thus creating the need to revise that function of math for a minute.

Trigonometric circle

The trigonometric circumvolve goes from 0 degrees to 360 degrees. One lap of the circle is 360 and 360 degrees is equivalent to nix degrees on the circle.

Hither is what the circle looks like

The mastery of the concept of angles is crucial to your ability to get things done in AutoCAD. You take to be capable of quickly deducing what the value of an angle is from the angle cypher.

On the images above you lot will observe the trigonometric circumvolve with angles counted respectively from the positive side (anticlockwise) and from the negative side (clockwise)

Notice -90 degrees = 270 degrees, 22.five degrees = -337.v degrees… and all other similarities

Ane of the most important information to have in mind is that AutoCAD ever starts counting angles from zero. Yous will see why remembering this is important in a infinitesimal.

Angles and lines in AutoCAD

To draw a line in AutoCAD you tin can use the command line length<Angle.

Caution! EnableDynamic input earlier trying this

Case 1

To draw the line of 150 units, y'all volition have to (Here is how to change units in AutoCAD)

1. Activate the LINE command
2. Click in the drawing area to specify the starting point
3. Type 150<xxx and Hitting ENTER
4. Press ESC

where 150 is the length of the line and 30 is the angle the line makes with zero.

If I had written 150<-330 at pace 2, it will give the same result.

Example 2

What if the figure were tending of like this? How would y'all depict that 150 units line?

To draw the line of 150 units, you will accept to

1. Activate the LINE command
2. Click in the cartoon surface area to specify the start point
3. Type 150<150 and Striking ENTER
4. Press ESC

where the first 150 is the length and the second 150 is the angle. Why 150 for Bending? Because AutoCAD count angle from the bending zero, And so to detect the angle from aught, we needed to do 180-30=150.

Case iii

How about the following case

To describe the line of 150 units, you will have to

1. Activate the LINE command
2. Click in the drawing surface area to specify the showtime bespeak
3. Type 150<210 and Striking ENTER
4. Press ESC

To find 220 we made 180+thirty.

Call back the flat angle is 180 degrees and we AutoCAD counts from nil.

Instance iv

And this instance

To draw the line of 150 units, yous will have to

1. Activate the LINE control
2. Click in the cartoon area to specify the get-go betoken
3. Blazon 150<-30 and Hit ENTER
4. Press ESC

Final words

You should now be able to know what information to give AutoCAD if you happen to deal with projects where angles do not accept the nil angle as a reference.

These tutorials might exist useful:

• Tutorial 01: Cartoon your showtime object
• Tutorial 03: How To Describe Straight Line in AutoCAD
• Tutorial 06: Circles in AutoCAD

Source: https://tutorial45.com/angles-and-lines-in-autocad/

Posted by: langleyyoushothe.blogspot.com

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