Leica Geosystems TPS1100 Professional Series - Reference Manual - Manual (Page 230)

230
TPS1100 - Appl. Prog. Ref. Manual 2.2.0en Road+
Horizontal Alignment, continued
Header of the Horizontal Alignment File:
41....+000JOBID 42....+HZALIGNM 43......+STACOORD
WI 41 Job-Identification. Max. 8 ASCII-characters, may be defined by
user.
WI 42 Identification of Horizontal Alignment file. May not be changed by
user.
WI 43 Identification of principal point type file. May not be changed by
user.
11....+KILOMETR 71....+0NEXTGEO 72....+0NEXTRAD
73....+0TEMPLNR 81..10+00000000 82..10+00000000
The data block for a principal point in the file is structured as follows :
WI 11 Station (chainage) of the point.
WI 71 Type of the following geometric element.
WI 72 Radius of the next horizontal geometric element, Radius 1 for a
compound curve, or the A-Parameter for spirals.
WI 73 Number of a cross-section (Template) assigned to the next
geometric element.
WI 74 Radius 2 for compound curves.
WI 81 E-Coordinate of the point.
WI 82 N-Coordinate of the point.
Comments:
• The header consists of a single
block at the start of a data file.
• Tangents and the EOP contain
“00000NON” in WI72
• Data units and decimal places in
WI’s 11, 72 and 74 are defined by
WI81 and WI82.
• If the radius point for a curve
(circular or spiral) is to the left of
the alignment (looking in the
direction of increasing stations) the
radius is negative.
• If the radius point for a curve
(circular or spiral) is to the right of
the alignment (looking in the
direction of increasing stations) the
radius is positive.
• A cross section (Template) may be
assigned to more than one
location.