Edit Point Groups

The Edit Point Groups feature allows you to use the CGEditor to edit/create an existing point group file.

CGEditor General Information

The CGEditor is an integral part of preparing files for use in C&G applications.  The CGEditor is a very powerful tool.  You can open multiple data files of any supported file type and edit the files as needed.  The CGEditor has a full complement of tools for searching and replacing and navigating within a file.  It will also allow you to cut or copy records from one file and paste them into another file in order to merge files, move data between phases of a job, etc. 

The CGEditor can create and/or edit six types of data files used by C&G:

Raw Data Files

Raw data files contain information pertaining to a field traverse.  Raw data files are typically downloaded from the data collector and converted to the C&G raw data file format.  These files have the extension .CGR.

Map Check Files

Map Check files contain bearing, distance and curve information and are typically used to calculate the closure of a deed description.  These files have the extension .CGM.

Cross Section Files

Cross Section files contain one or more cross sections identified by their station along the alignment.  Each cross section record has the percent grade defined for its left and right slopes.  Following the “Station” record are several “Point” records containing the elevations and offsets of the points along the cross section.  Cross section files consist of a pair of files; the main data file has the extension .CEW and the index file has the extension .CEX.

Template Files

Template files are merely cross section files that represent a standard cross section and can be used to generate other cross section files.  However, unlike cross section files, template files use an integer ID instead of a station to uniquely identify each template.  Like cross section files, the percent grade is defined for the left and right slopes of each template and there are a set of “Point” records specifying the template elevation at a given offset.  The centerline elevation at offset 0.00 is typically set to 0.00.  Template files consist of a pair of files; the main data file has the extension .CTP and the index file has the extension .CTX.

Point Group Files

Point Group Files are simply a list of point numbers that can define a group of points, a lot or parcel, or an alignment. These are ASCII files and have a .PTS extension.

Coordinate Files

CGSurvey supports many different coordinate file formats:

C&G .CRD/.IDX - C&G numeric coordinate files
C&G .CGC/.CGX - C&G alpha-numeric coordinate files
Carlson .CRD - Carlson coordinate file format, numeric and alpha-numeric
Simplicity .ZAK - Simplicity coordinate file
LDT - MDB - Land Desk Top coordinate file

Note: for further and complete information on using the Edit Raw File see the chapter on CGEditor in the Tools section.

Pulldown Menu Location: Management\Point Groups\Edit
Keyboard Command: BPF, CG_EDIT_BPF
Prerequisite: Open Raw File