View Full Version : Angle without knowing two points
GMPAO
21st Oct 2009, 01:20 pm
Is it possible to enter a line as an angle without knowing the @ #,# and only knowing the line distance?
ReMark
21st Oct 2009, 01:33 pm
You want to enter just the coordinates like this?
Command: _line Specify first point: 0,0
Specify next point or [Undo]: 120,120
Yep...it's doable. No @ symbol required either.
GMPAO
21st Oct 2009, 01:37 pm
Ok, just so I better understand, if I have a 13' long line and I want it at an angle I will type 0,0 then ENTER and type 13,13 ENTER?
Tankman
21st Oct 2009, 01:45 pm
Ok, just so I better understand, if I have a 13' long line and I want it at an angle I will type 0,0 then ENTER and type 13,13 ENTER?
OK, so I'm a bit confused. Don't know the angle?
Pick a starting point, from the command line, @13<0.
This will give you a line 13 units long, from your starting point, to 0° (or to the right).
You can always rotate the line if needed later.
ReMark
21st Oct 2009, 01:54 pm
You want to draw a line and you DO or DO NOT know the angle? Which is it?
GMPAO
21st Oct 2009, 01:55 pm
I know th length of the line that's at an angle is 13' but I don't know which coordinates will get me there.
stevsmith
21st Oct 2009, 01:56 pm
Or you can select the 1st point of your line, aim in the direction you want to go (make sure ortho is off) type 13 hit enter.
ReMark
21st Oct 2009, 02:01 pm
Type the angle in then if you do not know the coordinates. Like this:
@13'<67d45'00"
The input for the angle depends on the angle type that you have specified in Units. The above example uses Degs/Mins/Secs with a Precision of 0d00'00". Does that work for you?
ReMark
21st Oct 2009, 02:03 pm
Drawing precisely would require that you know either the exact angle or the exact coordinates. If you have neither then you aren't drawing as much as you are sketching. It all depends on how accurate you want to be. If accuracy doesn't matter skip CAD altogether and get out your pencil and paper.
GE13579
21st Oct 2009, 02:05 pm
If you don't know the angle or the coordinates- then unless you have something to snap to or reference from, you've got your work cut out! :shock:
GE13579
21st Oct 2009, 02:06 pm
You can always use TRIM, EXTEND or LENGTHEN if you have a point which references the angle?
GMPAO
21st Oct 2009, 02:10 pm
Thanks ReMark. That seems to be working. Now how do I get the 45 angle to slant down and right?
ReMark
21st Oct 2009, 02:16 pm
AutoCAD turns angles counterclockwise. "0" degrees happens to be at the 3 o'clock position. 90 degrees is at 12 noon, 180 degrees is at the 9 o'clock position and 270 degrees is at the 6 o'clock position. Follow me so far?
It sounds like you want your line to be at an angle of 315 degrees based on what I just told you right? Then as an example you would type:
@25'<315d
Does that work for you?
GE13579
21st Oct 2009, 02:18 pm
Or -45°...
Be careful as you can change the orientation of 0° though.
GMPAO
21st Oct 2009, 02:22 pm
That's exactly the info I needed! Thanks so much for your time ReMark and everyone else also!
rkent
21st Oct 2009, 03:19 pm
Turn Polar on and set the increment angle to 45
davebate
21st Oct 2009, 03:51 pm
ucs z 13 might help
alanjt
21st Oct 2009, 04:00 pm
Command: l
LINE Specify first point:
Specify next point or [Undo]: <45
Angle Override: 45
rkent
21st Oct 2009, 06:44 pm
Command: l
LINE Specify first point:
Specify next point or [Undo]: <45
Angle Override: 45
For this example he would need to use <-45.
alanjt
21st Oct 2009, 07:04 pm
For this example he would need to use <-45.
It locks it in for the specified value and the (+ value 180).
rkent
21st Oct 2009, 07:35 pm
It locks it in for the specified value and the (+ value 180).
The OP asked:
Now how do I get the 45 angle to slant down and right?
The <-45 would be required to get to 315 degrees (and 135 at the same time)
alanjt
21st Oct 2009, 07:37 pm
The OP asked:
The <-45 would be required to get to 315 degrees (and 135 at the same time)
I stand corrected. Sorry.
ReMark
21st Oct 2009, 10:49 pm
GMPAO: Hope you've been taking notes. One task with many ways of accomplishing it. The choice is yours.
GE13579
22nd Oct 2009, 09:48 am
ucs z 13 might help
:shock: Not sure how rotating the ucs 13 will help? To go down that route surely would be long winded, but will require the following:
Command: ucs
Current ucs name: *WORLD*
Specify origin of UCS or [Face/NAmed/OBject/Previous/View/World/X/Y/Z/ZAxis]
<World>: z
Specify rotation angle about Z axis <90.00000000>: -45
Command: plan
Enter an option [Current ucs/Ucs/World] <Current>: C
Regenerating model.
Command: l
LINE Specify first point:
Specify next point or [Undo]: 13
Specify next point or [Undo]:
Command: ucs
Current ucs name: *NO NAME*
Specify origin of UCS or [Face/NAmed/OBject/Previous/View/World/X/Y/Z/ZAxis]
<World>: w
Command: plan
Enter an option [Current ucs/Ucs/World] <Current>: C
Regenerating model.
davebate
29th Oct 2009, 09:40 am
Command: UCS
Current ucs name: *WORLD*
Specify origin of UCS or [Face/NAmed/OBject/Previous/View/World/X/Y/Z/ZAxis]
<World>: Z
Specify rotation angle about Z axis <90>: 13
How difficult is tthat takes less than a second
GE13579
29th Oct 2009, 10:26 am
Command: UCS
Current ucs name: *WORLD*
Specify origin of UCS or [Face/NAmed/OBject/Previous/View/World/X/Y/Z/ZAxis]
<World>: Z
Specify rotation angle about Z axis <90>: 13
How difficult is tthat takes less than a second
Not difficult I know, but you're not answering the OP's question and are giving misleading information- you're rotating 13° when the OP wants a line 13 long at an angle of -45°.
You really change the UCS for every line you draw? :shock:
davebate
29th Oct 2009, 10:47 am
I know th length of the line that's at an angle is 13' but I don't know which coordinates will get me there. sorry i was trying to help this is in the thread and a statement that was made
GE13579
29th Oct 2009, 11:06 am
I know th length of the line that's at an angle is 13' but I don't know which coordinates will get me there. sorry i was trying to help this is in the thread and a statement that was made
You do know that 13' is 13 foot, not 13 degrees?
Is it possible to enter a line as an angle without knowing the @ #,# and only knowing the line distance?
Ok, just so I better understand, if I have a 13' long line and I want it at an angle I will type 0,0 then ENTER and type 13,13 ENTER?
davebate
29th Oct 2009, 11:56 am
sorry mate read the thread re references to degrees very confusing to a 25 year amiter like my self have you now gon back to the dark ages feet and inches
GE13579
29th Oct 2009, 12:00 pm
No worries Dave the line you referenced was a little misunderstanding... but be careful about coining feet and inches as being from the dark ages... our colleagues across the pond might not take lightly to that (imperial measurement is standard in the US and also in some disciplines in the UK I think?). :)
davebate
29th Oct 2009, 12:18 pm
ok i was trying to help having a bad day but much apprecated for you response
hope the day gets better wont happen again
GE13579
29th Oct 2009, 01:01 pm
No worries I always get things wrong here! :oops::)
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