Technical data

Managing Points
123
Working with Point Groups
Point groups are named collections of point numbers that you can
select when editing and inserting points, and when choosing points to
add to a surface. By saving a collection of points with a name, you do
not need to manually select the points each time you perform an
operation. A point group does not store point information; the point
database always handles point storage. The point group feature lets
you organize the points into smaller, more manageable groups.
Point groups can override existing point data that is contained in the
point database. For example, you can create a point group, and
establish a fixed description for all points in that group in order to
identify the group in the drawing. Or, you can reference an external
database file to override the information in the point database. This
information can be different for each point. For example, you can
substitute different elevations for all the points to create a point group
of borehole data.
The following diagram shows how the data is taken from the project
point database. Then, if any overrides are defined, either manually or
by linking with a user database, the overrides are applied to the points
as they are inserted or imported as a group. No substitution is ever
applied to the point database itself.
Project Point Data
Point data in the Point
Database (points.mdb)
is used
Result
Point Group Inserted
into Drawing with
overrides
Overrides Applied
Point data in a user-
defined point database
or manual overrides