How To Draw A Line With Angle In Autocad

Nosotros have seen in before how to utilise polar tracking to depict inclined lines with specific angle sin AutoCAD, but what happens if you lot desire to input your own value instead of using the value prefixed by AutoCAD?

Before we dive into the subject area matter, we 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 circle goes from 0 degrees to 360 degrees. Ane lap of the circle is 360 and 360 degrees is equivalent to zero degrees on the circle.

Hither is what the circumvolve looks like

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

On the images above yous volition discover the trigonometric circle with angles counted respectively from the positive side (anticlockwise) and from the negative side (clockwise)

Observe -90 degrees = 270 degrees, 22.v degrees = -337.5 degrees… and all other similarities

One of the most important information to have in mind is that AutoCAD always starts counting angles from aught. You will see why remembering this is of import in a infinitesimal.

Angles and lines in AutoCAD

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

Caution! EnableDynamic input before trying this

Case 1

To depict the line of 150 units, you lot will have to (Here is how to change units in AutoCAD)

Activate the LINE control
Click in the drawing expanse to specify the starting indicate
Type 150<30 and Hit ENTER
Press ESC

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

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

Example 2

What if the effigy were disposed of like this? How would you lot depict that 150 units line?

To describe the line of 150 units, you volition accept to

Activate the LINE command
Click in the drawing area to specify the start point
Type 150<150 and Hit ENTER
Press ESC

where the kickoff 150 is the length and the second 150 is the bending. Why 150 for Angle? Because AutoCAD count bending from the bending zero, Then to find the angle from nix, nosotros needed to practise 180-xxx=150.

Instance 3

How almost the post-obit example

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

Actuate the LINE control
Click in the drawing area to specify the start point
Type 150<210 and Hitting ENTER
Press ESC

To find 220 nosotros made 180+30.

Call up the flat bending is 180 degrees and we AutoCAD counts from zero.

Case four

And this case

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

Activate the LINE command
Click in the cartoon surface area to specify the get-go betoken
Type 150<-thirty and Hit ENTER
Printing ESC

Terminal words

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