Leica Geosystems TPS1100 Professional Series - Reference Manual - Manual (Page 170)

170
TPS1100 - Appl. Prog. Ref. Manual 2.2.0en Road+ File Editor
Coordinate Data Files
You may not delete records from a
Coordinate Data File, nor may you
insert new records between existing
records. Only the Point Id may be
changed in existing records. You may
add Code blocks, Point Coordinate
and/or Station Coordinate Data
records at only the end of the file.
Road+ Project Files - Horizontal Alignment
You may delete, insert and/or edit all
Road+ horizontal alignment element
types with Road+ File Editor. Road+
horizontal alignment element types
are:
• Tangents;
• Circular Curves;
• Clothoid transitions (Tangent to
circular curve, circular curve to
tangent and between circular
curves), and;
• End of Positioning
You must use the following sign
convention to describe the direction
of curvature for non-tangent
horizontal alignment elements:
• For right hand curves (the center
of curvature is to the right of the
horizontal alignment) the radius
and transition parameters are
positive values.
• For left hand curves (the center of
curvature is to the left of the
horizontal alignment) the radius
and transition parameters are
negative values.