Point groups were formerly called Batch Point Files or point
files. These files are text files with the extension pts.
These features allow the user to create or edit a point group. A
point group is simply an ASCII text file that contains a list of
point IDs that are in a specific sequence. The points
in a point group can describe a tract of land, a road centerline, a
utility line, a group of lots in a subdivision, etc. - anything
that can be defined by a series of points. Point groups can
also contain the PC radius point and PT for horizontal curves as
well as vertical curve information.
An example of a point group file:
If you view a point group file in a text editor like notepad you
will see something like this example Note: the text in square
brackets does not appear in the file itself - it is only used to
clarify this example:
The above example illustrates a point group with two subgroups.
Each subgroup defines a lot. The last point in each subgroup is
optional - you don’t need to close the lot boundary by entering the
starting point twice.