
	Applies To

	Product(s):	MicroStation
	Version(s):	08.11.07.443
	Environment:	Windows 7 32 bit
	Area:	Base Geometry
	Subarea:	N\A
	Original Author:	Reginald Wallace, Bentley Technical Support Group

Problem

What does the elevation field represent?

When placing a linestring in 3d file there is a value in the "Elevation"
field when doing an element information. What does this value represent?

Solution

The elevation value was added to support DWG's concept of "light weight polyline" which is essentially a 2D linestring with a z-depth from the world origin. So if a linestring has a plane then the elevation is the z-coordinate of the plane. If you move a point of a linestring to make it sit on ZX plane, then you get its elevation on y-coordinate.

MicroStation programmatically captures information regarding the z-plane through an expression that the linestring falls in. So the value shown in elevation field is reporting the z-coordinate value of this plane.

What does the elevation field represent?

Problem

Solution

See Also