Javad TRIUMPH-LS, User Manual

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Coordinate Systems
be fairly close to their actual positions on the Earth (within
a few meters) and the appropriate coordinate system of the
entered/imported coordinates be selected, otherwise these
coordinates will become distorted. The only instance that
J-Field will not attempt to relate coordinates to the internal
3D LLH data structure is when the selected coordinate
system is “Unknown”. Using an Unknown coordinate system
allows the user to enter or import coordinates from a survey
or design which has no precise relationship to the Earth.
This Unknown coordinate system is meant to serve as a
temporary bridge between imported coordinates that are
not georeferenced (such as from a total station survey) to a
localized system subsequently created through localization.
Before any coordinate is entered or imported it is critically
important that the proper coordinate system be selected as
well as the proper units (HOME>SETUP>ADVANCED>UNITS).
In Coordinate Systems (All Projects Coordinate Systems)
J-Field keeps an Unknown Coordinate System ready for use
with the default name “?Unknown[date/time]” in which the
date and time are the date and time the system was created.
This name can easily be changed to something more
relevant to the user, such as an old job name, a parcel name,
a design project etc., by highlighting the unknown system
and pressing edit.
If more than one Unknown system is needed at a time,
press Add at the top of the screen and select Unknown at
the bottom left. A new Unknown system appears with the
default name. It is strongly recommended to change the
name of the unknown system to something meaningful to
reduce confusion should more than one Unknown system
with default naming conventions exist.