This command allows you to draw or revise a polyline by specifying distance and slope ratio, percent of grade or pick points on the screen. The polyline could represent a section or profile which can be processed with the Polylines End Area or Sections from Polyline.
Horizontal scale <50.0>: 20
Vertical scale <50.0>:
10
Pick point/<Starting elevation of polyline-section
<100.0>>:
P Enter the starting elevation or press Enter to use the default value
in brackets and you are
prompted for the starting offset or X coordinate. By entering P you are
prompted to pick a starting point
for the polyline/section.
Pick start point: pick a point
Slope ratio + for up slope - for down slope.
Undo/End/switch to Left/Pick point/<Enter Right Distance>:
130
End/Percent slope/<Slope Ratio (?:1) <2.0>>:
5 This enters a slope ratio of 5 to 1 for 130 feet to the right of the
starting point.
Undo/End/switch to Left/Pick point/<Enter Right Distance>:
L
Undo/End/Pick Point/<Enter Left Distance>:
110
End/Percent slope/<Slope Ratio (?:1) <2.0>>:
P
Percent of grade slope: 2 This enters a slope of 2 in 100 for a distance of 110 feet to the left
of the starting point.
Undo/End/Pick Point/<Enter Left Distance>:
30
End/Percent slope/<Slope Ratio (?:1) <2.0>>:
4
Undo/End/Pick Point/<Enter Left Distance>:
E Entering E ends the command.
Pulldown Menu Location: Draw
Keyboard Command: PSR
Prerequisite: None
File Name: \lsp\slpline.lsp