Station / Offset Points
- The Station / Offset Points command is part of the RPS Data Prep Toolbox
- The command is located on the Data Prep macros menu ribbon
- The command is located in the Create / Edit menu group
Creates points through input of station, offset and elevation, delta elevation or cross slope values with respect to a selected alignment or reference line.
Update includes ability to elevate the entered points using absolute elevation, delta elevation or slope from the selected line.
The Station / Offset Points command dialog looks as follows
Input the point ID for the first point that you will create using this process. All subsequent points will be created with an increment of 1 from the starting Point ID.
Select the layer on which you want to place the points created. You can create a new layer using the + button and filter the layer list presented using the filter button. Refer to the New Layer control and Filter Layer control help for more information.
Create Dependent Points checkbox:
Check this checkbox if you want the points to be tied as a dependent object to the selected alignment. If checked, and subsequently the alignment is edited, the points will move with the alignment because of this dependency. If unchecked, the points will be created at their Northing, Easting and Elevation location and will have no dependency on the alignment, allowing them to be freely moved or edited thereafter.
Elevation Mode selection:
The points that are created can be elevated using one of three modes using the source line / alignment elevation as a basis. The modes are
- Absolute Elevation - this allows you to enter an absolute elevation for the points being created
- Delta Elevation - this allows you to enter a delta elevation to the source line / alignment at the station being entered. Downwards is negative. Upwards is positive.
- Slope - this allows you to enter a slope to the point from the source line / alignment, that will derive the elevation at the station and offset that you enter i.e. 10’ at -5% will be -0.5’ lower than the alignment.
Note that changing the Elevation mode will change the input dialog below to reflect the option selected.
Alignment or Line Selector:
Choose whether the source line for stationing will be an alignment or a line (polyline or linestring etc.)
Reference alignment or Reference line:
Select the Reference alignment or Reference line that you wish to use as the reference for the station and offset values that you enter for this process to create the points required. You can click the show direction icon at the end of the reference line field to show the lines direction on screen as a series of arrows. Refer to the Show Direction control documentation for help on how to control the Settings for this control.
Enter the station value for the point.
If you intend to enter several values at the same station, you can click on the small arrow to the right side of the entry field and when enabled, this will cause the station value to be auto-duplicated for each point until a new value is entered or until the sticky status is removed.
Enter the offset value for the point.
When the elevation mode is set to Absolute - Enter the elevation value for the point.
If you do not want to enter elevation values, or if you want the elevation values to be duplicated on each point entered, click the small arrow to the right of the entry field (turns orange) to enable the “Auto Advance” status.
When the elevation mode is set to Delta - Enter the delta elevation for the point.
If you do not want to enter delta elevation values, or if you want the delta elevation values to be duplicated on each point entered, click the small arrow to the right of the entry field (turns orange) to enable the “Auto Advance” status.
When the elevation mode is set to Slope - Enter the slope value to the point from the line / alignment.
If you do not want to enter slope values, or if you want the slope values to be duplicated on each point entered, click the small arrow to the right of the entry field (turns orange) to enable the “Auto Advance” status.
Enter the feature code for the point.
The Station, Offset and Elevation / Delta Elevation / Slope value that you enter will be used to compute a Northing, Easting and Elevation for the point. the point will then be placed at that location in the drawing. The Code value will be retained for each point, you can simply tap the Enter key on the keyboard to create each point.
When you tap apply, the station / offset point 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.
Note: The Enter key acts as Apply during execution of the command
Closes the command without further execution.
The following video shows how to utilize the Station / Offset Points command
The following videos show the use of the Station / Offset Points command in a work process context
If you would like to provide feedback on the use of the Station / Offset Points command or to request enhancements or improvements to the command please Click Here