Closure by Point Numbers

This command allows for traverse entry by point numbers, reports the closure and supports traverse adjustments. Using an existing coordinate file, the traverse is defined by a series of point numbers. The angle and distance for each traverse segment is calculated using the coordinates of the points. The traverse can be processed using all adjustment routines. Refer to the Edit-Process Raw Data File command for more detail on adjustment procedures. After selecting Closure By Point Numbers from the Survey menu, the Closure By Point Numbers dialog will appear.

In this dialog shown above, add the point numbers that make up the traverse. This can be done by entering the point number, a range of points, or a point group into the Point Number(s) field. You can also choose points from a list by clicking the List button. Once each point, or group of points, is entered, click the Add button. Continue in this fashion until all of the point numbers are entered in. Clicking the Process button will display the Choose Process Method dialog. Choose the desired process method.

After selecting the process method for any of the adjustment methods, the dialogs and prompts will follow. They all start out with an "options" dialog box. These dialogs are titled either Process Options or Closure Options, depending on which process method you chose. The prompts that follow for any of the methods are subset of, and are very similar to, the prompting found in the Edit-Process Raw Data File command. After you have made your selections within these dialog boxes, click OK.

When you choose No Adjust of Angle Balance

When you choose Transit, Compass or Crandall

Each of the process methods will display a report that details the closure before the adjustment, and after the adjustment. Options to save and print this report are available. After a review of the report, pressing Exit will remove the report from the screen. At this point a Process Results dialog, prompting whether to Update points in CRD file with adjusted coordinates, will appear. If you choose Yes, the active coordinate (.CRD) file will be updated with the adjusted coordinates. Choosing No will leave the active coordinate (.CRD) file in its existing state, with the coordinates unchanged. It is important to remember that the starting and ending point in this routine must be a different point number. For example, if the traverse starts at point 1 and ends at point 1, then another point number should be used for the tie in shot to point 1. This logic is different in Edit-Process Raw Data File, where the starting and ending point can be the same point number.


Pulldown Menu Location: Survey
Keyboard Command: ptrawedit
Prerequisite: Coordinate (.CRD) file