offset that are not situated 90 degree rather that are situated in any angle like 60 degree or 45 degree
tool offset drill offset
The prismatic compass is a type of compass use for survering a land.
Surveying is the back bone of construction projects, we must need surveying before starting a construction project, during execution of construction activities and after completion of project. Before starting project surveying help us in design and calculation of quantities. During execution of construction activities surveying is most important thing, It help us to maintain the exact locations and heights. After completion of project surveying is called topographic surveying and it helps us to prepare the As-Built drawings, to make comparison between design and actual constructed structures, to check the differences.
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it is a type of surveying in which we can plot the area in the field rapidly.we can also find our error in the field and solve it.
The measurements are taken at right angle to the survey line called perpendicular or right angled offsets. The measurements which are not made at right angles to the survey line are called oblique offsets or tie line offsets.
HOT stands for Horizontal Offset Target, a reference point used in surveying to calculate horizontal measurements and distances from a particular point or feature.
Offset in land surveying refers to a measurement taken perpendicular from a known point or line to locate a specific point or feature. It is used to create accurate drawings or maps of a survey area, showing the relative positions of various elements. Offsets help ensure precise placement of objects or boundaries within the surveyed area.
internal oblique opposes the external oblique
Oblique lines:
oblique rectangular
Oblique means at an angle.
Slanting. A slash (/) is oblique
Oblique means slanted or at an angle.
Plain Surveying Geodetical Surveying
The inguinal ligament runs deep to the external oblique muscle.
prismatic surveying and surveying compass.