Point Groups
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:
LOT 1 [Subgroup
description]
1
[Point 1]
23
[Point 23, PC]
+48
[Clockwise radius point 48]
49
[Point 49, PT]
50
[Point 52]
1
[Point 1, back to starting point]
LOT 2 [Subgroup
description]
12
[Point 12]
24
[Point 24]
65
[Point 65]
70
[Point 70]
12
[Point 12, starting point]
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.
Pulldown Menu Location:
CG-Survey > Mngmt
Keyboard Command: None
Prerequiste:
Coordinate file