Replies

1. 
   Steve_Dewing | Feb 14, 1999 09:33am | #1

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   Larry,
   You would need to have two "found" lot pins in order to have a reference line to work from. With your equipment you would have to set up directly over one pin, sight the other and turn the angle to the missing pin. Do you need to know how to convert bearing to azimuth?

   Steve

2. 
   Guest_ | Feb 15, 1999 09:48pm | #2

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   My CAD program, Datacad allows easy conversion between various angle styles and distance styles. Bearing style, compass style, decimal degrees, feet/inches, inches, decimal feet, meters etc. with one setting each and the drawing is changed. With cad you can easily measure what the angle is between two lines. Safer for me than trying to add and subtract odd angles (north 63 degrees 3 minutes 59 seconds east) and getting confused.

   If you have access to cad, try making a simple drawing and establishing what the angle is you will be looking for. Although this may be more accurate than you need, any errors are easier to spot.

   Its difficult to explain HOW to find the included angle between two lines in writing without using a diagram or an example using two specific angles.

   The confusing thing is that a N 63 deg 3' 59" E line, can be the same as a S 63 deg 3' 59" W line.

3. 
   Dirk_Dinsmore | Feb 16, 1999 06:37am | #3

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   Larry: It isn't really all that hard. Your example: N63-3-59E: If you are standing at the center of a circle with due north being straight up, the above example measures from due north towards the east (hence the N and the E in the measurements). The 63 degrees 3 minutes 59 seconds can be converted to a fraction as follows: There are 6o minutes in each degree, and 60 seconds in each minute. Convert the seconds to a fraction of a minute first: 3 minutes 59 seconds is 3 plus 59/60 minutes = 3.983 minutes. Then convert the 3.983 minutes to a fraction of a degree next: 3.983/60 = 0.06639 degrees. Add the original full 63 degrees to this to come up with 63,06639 degrees, measured from due north towards east. You now how the angle measured from north for one lot line, you then need to find the angle of the other lot line and relate it to the first line to find the angle in between that you rotate the builder's level.

4. 
   Larry_M | Feb 16, 1999 10:19pm | #4

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   Sometimes I have to try and find pins at the corners of lots. I would like to be able in some instances to be able to set up my builders level that has a potractor on it and be able to sight toward a found pin, turn an angle and find the missing pin. The angle I would turn would be the magic angle that you get when you convert a (N63-3-59E) type angle into an easy to understand 87degree (or what ever) angle. Have I lost everybody??

5. 
   Guest_ | Feb 16, 1999 10:19pm | #5

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   Another way to do it is

   degrees + minutes/60 + seconds/3600 = decimal dgrees

   -Rob