SatLab SLT2 - Refsurface

Total Station Manual
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149
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arc ,∆Line will be negative, and on the contrary is positive;
∆
Offset: the offset of the measuring point with respect to the arc in the direction of
the radius. If the measuring point is in the circle, the
∆
Offset will be positive, and on
the contrary is negative.
∆ : the elevation difference between measuring point and starting point;If it is
higher than start point, it will be positive, and on the contrary is negative.
※ In above operation, press [ESC] to return to previous menu.
13.3 RefSurface
Reference Surface is also known as Reference Plane. It is a function that can be
used to measure points relative to a reference plane. It can be used to:

Measuring a point to calculate and store the perpendicular offset to the
plane

Calculating the perpendicular distance form the intersection point to the
local X and Z axis. The intersection point is the footprint point of the
perpendicular vector from the measured point through the defined
plane.
 Viewing, storing and staking out the coordinates of the intersection point.
A reference plane is created by measuring three points on a plane. These three
points define a local coordinate system:

The first point is the origin of a local coordinate system.
 The second point defines the direction of the local Z-axis.

The third point defines the plane.
X-axis of local coordinate system.
Y-axis of local coordinate system.
Z-axis of local coordinate system.