This command labels the station and offset of a point relative to a centerline. A polyline that represents the centerline or a centerline (.CL) file is required before running this command. The points to label can either be picked on screen or specified by point number. As the crosshairs are moved, the station and offset of the current position are displayed in real time in the corner of the drawing window.
1 Under the Label Options, there are two options for labeling. In addition to updating the point descriptions, these options control the label format.
● Add to Existing Pnt Desc: If you have Carlson Survey points and want to add the station-offset to the point descriptions, then use the Add to Existing Point Description option. The Point Description option puts the station and offset on.
● Label Text Only: Labels the offsets on screen as text only. The Label Text option draws a leader to the point with the station text above the line and the offset below.
2 Under the Label Position, the location is set. The polyline should be drawn in the order of increasing stations. If the polyline goes the wrong way, use the Reverse Polyline command in the Polyline Utilities in the Edit menu.
● Automatic: Labeling is automatic.
● Pick Location: You pick the location for each label.
3 Under the Type of Curve, you set the type of curve.
● Roadway: Stationing uses the actual arc length of the curve.
● Railroad: Stationing applies a slight adjustment to the arc length based on 100 foot chord segments.
4 Other settings in the Label Station-Offset Settings dialog box are used for precision and text additions.
● Layer Name: Enter in a layer name for the text. The Select button brings up a list of layers to choose from.
● Beginning Station: Enter in the beginning station to start the labeling for Automatic.
● Max Offset to Calc: Enter in the maximum offset distance to label. Points with offsets greater than the Maximum Offset to Calc are not labeled.
● Station Decimals: Determines the precision of the station for labels.
● Offset Decimals: Determines the precision of the offset labels.
● Station Prefix: Assigns a prefix to station labels.
● Station Suffix: Assigns a suffix to station labels.
● Right Offset Prefix: Assigns a prefix to right offset labels.
● Right Offset Suffix: Assigns a suffix to right offset labels.
● Left Offset Prefix: Assigns a prefix to left offset labels.
● Left Offset Suffix: Assigns a suffix to left offset labels.
5 Under the Station Label, the label can be abbreviated.
● Full: Labels the full station.
● Partial: Labels a partial station, for example at station 5+89, the label would be +89, the characters after the + sign.
● None: No station is labeled, only the offset.
6 Under the Offset Label, the label can be abbreviated.
● Full: Labels the full offset value.
● Partial: Labels a partial offset, for example at offset R 34.8, the label is 34.8. The Offset Label Partial will drop the L for left or R for right from the label.
● None: No offset is labeled, only the station.
7 Under the Station type, the label format is assigned.
● 1+00: Stationing is drawn in the format 1+00.
● 1+000: Stationing is drawn in the format 1+000.
● 100: Stationing is drawn in the format 100.
8 Under the Centerline By, the entity is chosen. The centerline labeled is either from a polyline or a centerline (.CL) file.
Prompts
The Label Station-Offset dialog box is displayed.
The Polyline should have been drawn in direction of increasing stations.
1 Select Polyline Centerline: pick the polyline centerline
2 Pick point or point number (Enter to End): pick a point
Station > 2+10.91 Offset> 57.36 Right
3 Select point number to add station description to: pick point number
This prompt will not appear if the L option, Label Text Only, was selected.
4 Pick point or point number (Enter to End): Press Enter