Mr Todd you said when dealing with counterclockwise we have to -180 but from the way you calculated bc you added back bearing of AB to interior angle of B ?
i thought it mattered alot on whether you add or subtract 180 and the angle(im proabably doing it wrong). but i did it kinda randomly to keep the number within 360 and got it not returning to its origonal azimuth. sorry, random CE undergrad
An experienced builder need not employ anyone to layout for him. He would have much experience in layout of the building. A survey of the property prior to and building work taking place is a separate issue, and should be done by a certified surveyor.
The field artillery uses the M2A2 Aiming circle which provides direction. The Bosch GOL32 only provides distance while other transit devices provide distance and elevation. Why not develop something that measures all three? The mortgage survey provides distance and no direction. Although the survey provides the PIN, it doesn't identify its actual location as in a grid. I find all of this interesting but almost useless because you have to pay thousands of dollars to own a high tech of machinery only to get part of the solution.
Thank you so much for this video! I was stuck in a question of my surveying assessment for days, and you basically saved me! your video is fantastic, clear explanation and an easy way to explain the details, I wish you were my examiner.
Thank you ...our lecturer brought the same question in an open test n boooom I just came straight here ......#please don't forget to SUBSCRIBE cause this channel is worth it
I've generalized the process to eliminate the need for a worksheet, eliminate the need to determine +/- 180 each step, and eliminate the problem of negative angles. it is also more amenable to automation via programming or spreadsheets. Here it is: Label all points in the direction of the traverse numerically from 1 (so 1, 2, 3... instead of A,B,C...) For Clockwise (CW) direction and Left Hand Angles (LHA) use the expression: A(n) = [A(n-1) - LHA(n) + 540]MOD360 Where An is the nth Azimuth, LHA(n) is the nth Left Hand Angle and MOD360 is the modulo operation (i.e divide by 360, throw out the quotient and keep the remainder. In simple terms, keep the the final angle result within the primary 0-360 degree circle.) For Clockwise (CW ) direction and Right Hand Angles the equation is: A(n) = [A(n-1) + RHA(n) +180]MOD360 A similar pair of equations can be derived for the complementary operation of finding the angles of turn given the Azimuths. I've confirmed they work for angle turns > 180 as well. These equations are elegant, closed form, and eliminate the plague of errors due to trying to keep track of all those sign changes etc. I'm sure I'm not the first to figure this out, but it's odd to me that everyone seems to teach this as you have. I understand that it's useful in cementing what the underlying mechanics are, but for real work, it's much too laborious. Maybe that's just me.
Iit seems to me that in this modern time of new technologies that someone would have made a tape that would not change with heat or cold and not stretch or break when put to hard use. And also come with two handles and not just one. Every tape over 30 feet long should have two handles. Edmund Gunter got it right the first time by seeing the need for two handles at the ends of a measuring line. So a better question is I suppose is why do modern tapes not have any handles? Anyone care to answer this in the comments?
There should be a much better term for this work than just surveying, as that word is used in so many other ways. Surveying is not the best word to describe the work that land surveyors do. They could amend this by just prefixing the word Land, or Geo, and Plane surveying before the term surveying and set their profession apart from all other uses of the word. When taking samples of attitudes of people the word surveying fits very well; however, when locating points on the surface of the earth the word becomes inadequate because surveying is not a sample but a fixed value. Those who measure the land do not place a high enough value on the name of the art and science they do.
