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73
Stake Out Alignments
By default, parabolic curve has “
Grade In
” (starting
slope) and “
Grade Out
” (ending slope) identical (that
is, forming a straight line) and equal to the ending
slope of the previous section.
Note: In current implementation all slopes are defined
in percent, i.e. as Δ(vertical)/Δ(horizontal)*100%.
We need to create transition curve for 5% target
slope. So, enter “50.0” as horizontal length and “5.0” as
“
Grade Out
”.
Note: You can also enter “
End Elevation
”, and “
Grade
Out
” will be computed automatically (in our example,
set “
End Elevation
” to 151.25 and “
Grade Out
” will
be calculated as 5%). As a parabolic curve with fixed
starting slope and horizontal length has only one
degree of freedom, “
End Elevation
” and “
Grade Out
”
fields cannot be edited independently.
Now our screen looks as shown in Figure 25.
Figure 25
Tap “
New Section
” to create straight line, note that
slope is automatically set to our desired 5%, and edit
“
Hor. Length
” to 35.0 (Figure 26).
Figure 26
The procedure has become a little bit boring, so let
us get familiar with the
List
screen and create another
transition parabola via copy. Tap the “
List
” button at
the upper right corner of the screen.
Figure 27
Содержание TRIUMPH-LS
Страница 1: ...U S E R S G U I D E TO T H E T R I U M P H L S E Version 20160121 ...
Страница 17: ...www javad com 17 Introduction ...
Страница 39: ...www javad com 39 Collect Screens ...
Страница 59: ...www javad com 59 Stake Out Points ...
Страница 91: ...www javad com 91 Stake Out Alignments ...
Страница 93: ...www javad com 93 Using ShapeTags and Codes Data Structure ...
Страница 105: ...www javad com 105 Using ShapeTags and Codes ...
Страница 149: ...www javad com 149 Localization ...
Страница 165: ...www javad com 165 Appendix B NGS AntCal Appendix B NGS AntCal Data http www ngs noaa gov ANTCAL Antennas jsp manu Javad ...
Страница 166: ...www javad com 166 Appendix B NGS AntCal Appendix B NGS AntCal Data http www ngs noaa gov ANTCAL ...