Slope Slope Intersect
- The Slope Slope Intersect command is part of the RPS Modeling Toolbox
- The command is located on the Modeling macros menu ribbon
- The command is located in the Corridor menu group
This command provides the ability to compute 3D lines at the intersection of two slopes defined by two pairs of lines, with or without vertical or perpendicular offsets. The command is ideal for the computations of subgrade and topsoil adjusted embankment surfaces. All necessary offset lines are computed to facilitate rapid creation of the adjusted surface model.
The Slope Slope Intersect command dialog looks as follows
Select the reference line for the first slope element (typically defined by two lines or one line and a slope value). For example if the first slope element is defined by the road centerline and the edge of pavement, you can pick the edge of pavement here and then the road centerline as the second line of the pair.
Use another line for slope checkbox:
If you want to use a second line to define the slope, check this checkbox. If however you want to enter a slope value from the first line you selected leave this checkbox unchecked.
If you checked the checkbox, you can now select the second line for the first pair of lines that will be used to define the first of two slope surfaces for the computation.
If you left the checkbox unchecked you can now enter a slope value from the reference line to define the first of two slope surfaces.
Vertical Offset Checkbox:
You can elect to offset the slope surface vertically or perpendicularly. If you leave this checkbox unchecked, you will enter a vertical offset. If you check the checkbox you will enter a perpendicular offset to the slope surface. Note that if you elect perpendicular surface, the computation is applied vertically above or below the reference lines, but computed perpendicular to the slope between the two reference lines. Enter positive values for offsets above the reference lines and negative offsets for offsets below the reference lines. The offsets applied here will e.g. remove subgrade from finished grade or remove topsoil re-spread from embankment slopes etc. If you do not want to offset this surface element enter a 0 offset.
Create Offset Lines Checkbox:
If you check this checkbox, the selected reference lines will be used to generate two offset lines at the desired vertical or perpendicular offset from the reference lines. You will use these lines to create the computed embankment surface. If you entered a 0 vertical or perpendicular offset, you typically do not need to create these lines.
The line 2 settings repeat the process for line 1 settings but for the second slope surface e.g. Top and Toe of the embankment slope with a perpendicular offset for the topsoil respread removals.
If you want to simply intersect the sideslope with a subgrade adjusted surface, you can set the vertical or perpendicular offset to 0.
Enter the name for the intersection line that you will be computing.
Select the layer on which you want to place the intersection line
Select the alignment that will be used to compute the station intervals for the computed lines.
Enter the interval at which you want to compute the intersection line and offset lines. If you enter a value of 0 here, the command will use the interval of the source lines, so that the computed points on the new lines are at the same stations as the nodes of the source lines. This is the recommended approach.
If your corridor strings represent both cut and fill areas and you only want to apply the computations her to e.g. the fill embankments, you can specify a start and end station for the computations here. Select or enter the beginning station here.
Select or enter the end station here.
When you tap apply, the Slope Slope Intersect lines will be created and the command will ready itself for another selection set and repeat process execution. If you do not want to make a second selection and repeat the process tap Close to finish the process.
Closes the command without further execution.
Be careful of selecting the Beg and End points not to pick the exact point at which Cut to Fill transitions occur. Pick slightly inside the fill or slightly inside the cut areas so as to not create a 0 cut or fill scenario (where the two lines of a slope are in the exact same place).
The following video shows how to utilize the Slope Slope Intersect command
The following videos show the use of the Slope Slope Intersect command in a work process context
If you would like to provide feedback on the use of the Slope Slope Intersect command or to request enhancements or improvements to the command please Click Here