Rotating by Angle to Match Bearing

[Anonymous]

I am working on a plat and need to rotate my drawing around a certain point to change the bearing of a line. The format we use for surveys is 00 00' 00". My existing line is N46 59' 10"E. I need to rotate around another point in the drawing to make that bearing change to N32 21' 40"E. When I label the angle between those two lines it gives me -14 37' 30" as my rotation angle. The problem is when I rotate my drawing by that angle it does not make the line the correct bearing it should be after rotation. I can recreate this with any angle I try, it always comes up a little short. Is there a setting I am unfamiliar with that is causing this. If anyone can help I would really appreciate it. It doesn't make sense.

[Anonymous]

How much is a LITTLE short? Could it be because of rounding?

In similar situations I draw the line I want to rotate from and the line I
want to rotate to. Both from the basepoint of the rotation. Then I do the
rotation by Reference.

Allen

wrote in message news:5485179@discussion.autodesk.com...
I am working on a plat and need to rotate my drawing around a certain point
to change the bearing of a line. The format we use for surveys is 00 00'
00". My existing line is N46 59' 10"E. I need to rotate around another point
in the drawing to make that bearing change to N32 21' 40"E. When I label the
angle between those two lines it gives me -14 37' 30" as my rotation angle.
The problem is when I rotate my drawing by that angle it does not make the
line the correct bearing it should be after rotation. I can recreate this
with any angle I try, it always comes up a little short. Is there a setting
I am unfamiliar with that is causing this. If anyone can help I would really
appreciate it. It doesn't make sense.

[Anonymous]

It comes up 00 15' 7" short when you do the rotation I mentioned in my previous post. I thought also this might have something to do with rounding since you can rotate a line 90 degrees and it comes out right, just when you do an angle in between. This doesn't seem right though, when I use Terramodel and rotate a line the same way it leaves me with a line matching the correct bearing, civil 3d does not do this the way I currently have it setup. Thanks for replying, if anyone can think of what I may be doing wrong or if you can recreate what I am talking about, let me know. You should be able to get the correct bearing just by rotating a line with the angle between the two lines.

[Anonymous]

It could be that your angle input is being interpreted as decimal degrees instead of the intended DMS format.

Terramodel defaults to DMS format for angles and bearings as it's a standalone product built from the ground up specifically for survey/civil engineering. C3D being built on top of ACAD has some things set to a generic type of input.

[Anonymous]

Hi,

This looks as though you are entering DD.DDDD as DD.MMSS or visa versa.

Try to enter a value like 14.8 and see what it does.
--

Laurie Comerford
CADApps
www.cadapps.com.au
www.civil3Dtools.com

wrote in message news:5485179@discussion.autodesk.com...
I am working on a plat and need to rotate my drawing around a certain point
to change the bearing of a line. The format we use for surveys is 00 00'
00". My existing line is N46 59' 10"E. I need to rotate around another point
in the drawing to make that bearing change to N32 21' 40"E. When I label the
angle between those two lines it gives me -14 37' 30" as my rotation angle.
The problem is when I rotate my drawing by that angle it does not make the
line the correct bearing it should be after rotation. I can recreate this
with any angle I try, it always comes up a little short. Is there a setting
I am unfamiliar with that is causing this. If anyone can help I would really
appreciate it. It doesn't make sense.

[Anonymous]

Yes, you are correct, I have verified that is what is going on. I have set every setting I know to change as DD.MMSS and still have the same problem. Does anyone know where I can go to change my input parameters where it will default to allow me to enter DD.MMSS and get the correct rotation. Sorry I bothered everyone with this question, I am just used to the way things were in my previous program and am still learning. Thanks again for your help.

[Anonymous]

Ok, I get it now but it still seems backward. I need to type 14d37'30" instead of 14.3730. Thanks again.

kaw

[Anonymous]

You should correct this now. I think it is in the Ambient settings. Change
it in your template file as well. For some reason, out of the box is set to
decimal degrees. If this is not correct get back here.

Bill


wrote in message news:5485417@discussion.autodesk.com...
Ok, I get it now but it still seems backward. I need to type 14d37'30"
instead of 14.3730. Thanks again.

kaw