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?
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.
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