This command is used to calculate building corner offset points
that are extensions of the building faces. This command uses
building perimeters that are drawn as closed polylines. The point
are stored to the current coordinate file and draw on the screen.
There is a dialog for setting the parameters. The Offset
Amount is the distance that the offsets are extended past the
end of the building line. The Starting Point Number is the
point number to begin storing from. The Point Description
and Elevation are assigned to all the new points and the
Point Layer is used for all the drawn points. The Create
Extension Points controls whether offset points are created as
extensions of the building lines at the corners. The Create
Perpendicular Points applies to the extension points for
creating a pair of perpendicular points at the corners. The
Create Diagonal Points method creates points at the
diagonals of corners. The Create Across Building Points
creates points across to the other side of the building for inside
corners. The Create Envelope Points calculates a rectangle
that encloses the building and creates points at the four rectangle
corners. The Create Polyline Vertex Points creates points at
each vertex in the building perimeter. The Create 2nd Offset
option makes a second point for each point at another offset and
with another description.
In the first example show here,
Create Perpendicular Points is on. Points 101, 103, 104, 106, 107,
109, 110, 112, 115, 117, 118 and 120 are corner extension offset
points. Points 102, 105, 108, 111, 116 and 119 are diagonal points.
Points 113 and 114 are across building points.
Building Offset Extensions
dialog
Select building perimeter linework.
Select objects: make
selection
Pulldown Menu
Location: COGO
Keyboard Command: bldg_pnts
Prerequisite: A polyline perimeter that represents a
building