how is geometry exactly applied in land surveying?
December 31, 2009 – 4:32 amneed it in full detail
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3 Responses to “how is geometry exactly applied in land surveying?”
Yes!!! Geometry is fully applied in land surveying. Geometry came from the two Greek words such as "geo" which means land and "metron" means measurement. In land surveying, you are measuring the levels & profile of land, the area of lot/land, the bearings & azimuth of every points in a lot, the volume of land excavation or landfill, the distances of every points, etc.
Examples :
1) For a cadastral survey in determining the area of trapezoidal lot, you need to apply the formula for area of trapezoid. And mind that trapezoid belongs to a Plane Geometry. Also triangle, circle, octagon, square, etc, are Plane Geometry .
2) A land survey conducted to determine the volume of landfill to be done in a certain area with irregular dimensions (we call it prismoid). To determine a volume, you can use a prismoidal volume formula. Note that a prismoid belongs to a Solid Geometry.
3) Also a certain survey done for a road in which readings are in coordinates of Northings & Eastings (X and Y coordinates) and the purpose of survey is to determine the length of road. Note that the coordinate method false under Analytic Geometry.
I guess I had given you full details why geomtery is exactly being applied in land surveying. Hope this will help.
By Scorpio9 on Dec 31, 2009
In India, after 1920 AD, geometry is not used for surveying. There after Trignometry is used. Do you know the full form of GTS?
It means "Great Trignometric Survey of India" in year 1920.
Mr Everest was then the Surveyer General of India. Using his Theodolite, he calculated the height of mount everest above Mean Sea Level (MSL) at Karachi, using triangulation as 29002 feet. Hence this mount was named as Everest. Recently it was corrected as 29028 feet.
How used? Please read some books on surveying.
By ernairnp on Dec 31, 2009
It would need a book to give you ‘full details’. Start with how it was used way back?
By Dave O on Dec 31, 2009