Horizontal stretch

${\displaystyle \zeta }$= Zenith distance
SD = incline distance
HD = horizontal distance h = height difference = elevation angle
${\displaystyle \Delta }$
${\displaystyle \alpha }$

As a horizontal distance in which is Geodesy the horizontal (horizontal) distance between two measurement points , respectively.

calculation

The directly measured distance, for example with a total station , is always the inclined distance SD . The horizontal distance is required in order to be able to transfer the measured point in a plane coordinate system. The three measured basic elements are the horizontal angle Hz (azimuth), the vertical angle V (also called zenith distance ) and the slope distance (slope distance) SD . The horizontal distance is calculated using the following formula: ${\displaystyle \zeta }$

${\displaystyle {\boldsymbol {HD=\sin \zeta \cdot SD}}}$

literature

• Heinz Meixner , Viktor A. Bukrinskij: Markscheidewesen for mining disciplines . 1st edition. German publishing house for basic industry, Leipzig 1977, p. 411 .