FloorGetNormalAtVerticalProjectionPoint Method

Return a surface normal on either the top or bottom face of a floor slab at a point corresponding to the vertical projection of an arbitrary point in project space.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
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public XYZ GetNormalAtVerticalProjectionPoint(
	XYZ modelLocation,
	FloorFace floorFace
)

Parameters

modelLocation  XYZ
A point in project coordinates whose vertical projection will determine the location at which the normal will be taken.
floorFace  FloorFace
A flag determining whether the top or bottom face of the floor should be used.

Return Value

XYZ
Normal vector on the slab at the projection point.
Remarks
If the floor is shape edited, the floor location at which we attempt to take the normal must be within the boundaries of a face on the slab. Otherwise the method will return .
See Also