Reference Manual User Manual

Survey Pro Reference Manual
R-226
Ground Coordinates
Survey Projection Mapping Plane Ground….
The Ground Coordinates screen is used to toggle between grid and
ground coordinates, and to select how to define the origin of the
ground coordinate system.
Projection Definition: is where you choose how
to represent the mapping plane coordinates.
There are two options:
• Use Grid Coordinates: WGS84 geodetic
coordinates will be transformed into
mapping plane zone coordinates.
Horizontal distances on the ground are
usually scaled to the grid.
• Use Ground Coordinates: WGS84
geodetic coordinates will be
transformed into ground scaled
coordinates translated to a local origin. Horizontal distances
on the ground are 1:1 on the grid, because the grid is scaled to
the ground.
Ground Coordinates Origin: is where you select what point to use as
the origin of the ground coordinate system relative to the origin of the
mapping plane zone. You can choose to.
• Origin at mapping plane origin: ground coordinate scale factor
will be applied from the origin of the mapping plane zone.
• Pick point to define origin: ground coordinate scale factor will
be applied from a point selected from the job.
• Key in coordinates to define origin: ground coordinate scale
factor will be applied from a location entered by the user.