Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 276)

276 11. Applications Technical Reference Manual-4.0.0en
2-Step is a transformation type where
information about the local ellipsoid,
map projection and a pre-trans-
formation is required.
Pre-Transf - Available only if a 2-Step
transformation type is selected. It is a
preliminary 3D transformation which
is used together with the selected
projection to obtain preliminary grid
coordinates to be used for a final 2D
transformation. Select a pre-trans-
formation from the list or open the list
and enter a new transformation by
pressing NEW (F2).
Ellipsoid - Available if a classical or a
2-Step transformation and a standard
projection type is defined. Select the
ellipsoid on which your local coordi-
nates are based. Open the list and
press DEFLT (F5) to reveal all of the
available ellipsoids. If your ellipsoid is
not listed, you may add it to the list by
pressing NEW (F2) and entering the
parameters.
Press CONT (F1) to return to
COORDSYS\Type Selection.
Projection - Available if a Classical
or a 2-Step Transformation Type is
selected. Select the Map Projection
from the list or open the list and input
the parameters for your local map
projection, (see box over). When
used for the first time, this list will
contain only non-standard map
projections.
Non - standard map projections
available include:
Czech and Slovak
Danish Bornholm
Danish Jylland
Danish Sjelland
Dutch RD Stereographic
Finnish KKJ
Hungarian
Malaysian
New Zealand
Romania Stereo 70
Swiss
Swiss 95
Geoid Model - If a Geoid Model is to
be applied, press ENTER and select
it from this list.
Geoid Model Field Files can be
exported from SKI-Pro onto the PC-
card or internal memory in the
Data\GPS\Geoid sub-directory. They
can either be transfered to the Sys-
tem RAM or be read directly from the
PC- card.
Use PCARD (F2) to update the list
with Geoid Model Field Files existing
on the PC-card.
To edit the name of the Geoid Model
press EDIT (F3).