2.10 Horizontal distances

Distances are written using an empty-element tag <distance /> with attributes

• from = "…" standpoint identification
• to = "…" target identification
• val = "…" observed horizontal distance
• stdev = "…" standard deviation of observed horizontal distance (optional)
• from_dh = "…" instrument height (optional)
• to_dh = "…" reflector/target height (optional)

Contrary to directions, distances in an observation set (<obs>) do not need to share a common stand-point. An example is set of distances observed from several stand-points with a common variance-covariance matrix.

Example

<distance from = "2"  to = "1" val = "659.184" />
<distance to ="422" val="228.207"  stdev="5.0"  />
<distance to ="408" val="568.341" />

This document was generated on February 17, 2024 using texi2html 1.82.