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This section describes how to use alignment points and alignment point areas.
An alignment point is the origin of the coordinate system used for the items inserted on the drawings. The location relative to the alignment point is used when exporting 3D-BIM elements or calculating distances between items.
Make sure you set a location for the alignment point that will be easy to locate on all of the floors of the building and that will not move during the course of the project. A corner of the building, a column, or the intersection of two architectural grids lines are all examples of good alignment point locations.
A drawing can have more than one alignment point. The first alignment point inserted is used for all items on the drawing. Additional alignment points are inserted with boxes, called alignment point areas, around them. All items in the alignment point area are associated with the corresponding alignment point. Any items not inside an alignment point area are associated with the first alignment point.
The following example shows a drawing file with multiple alignment point areas and floor plans. Notice how an alignment point area is drawn around the second alignment point.
The values that can be specified for alignment points are listed below.
Alignment Point Area Name: The name of the alignment point.
Floor: The floor associated with the alignment point area.
Pipe Types: The pipe types associated with the alignment point. For each pipe type and floor, there is one corresponding alignment point.
Once a pipe has been inserted in an alignment point area, that pipe type will be locked to that alignment point. That pipe type cannot be removed from the alignment point without first erasing the pipes in the area.
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