This command allows you to enter new centerlines, as well as recall and edit existing centerline files.  Centerline files in SurvCE are ASCII files with a .CL extension.  When the routine is selected,  a dialog will appear in which you can load existing centerlines or begin entry of new centerline information.









                       












Note: You can create new points with Input-Edit Centerline.  When you enter and save a centerline, it will prompt “Do you want to save centerline points?”  You may answer Yes and save point IDs for the start, end, PI, PC, radius point, PT and any key spiral points found in the file.  In the same way, a centerline that you load can be re-saved with new coordinate IDs assigned to all key points, as long as you make some change, like adding a point number to one of the Pt ID fields for a CL Element.  If you answer Yes to Save Centerline Points, the dialog box below appears. If you have entered point IDs of your own choosing in the Input-Edit dialogs, use the upper option.  The lower option will auto-number from the starting point ID without regard to any numbers youve entered, but will respect and not overwrite used points in the file. Points are not stored to the centerline file itself, so after loading a stored centerline, no point IDs will appear.