Module fmeobjects :: Class FMEFace

Class FMEFace

init(MultipleInvocations)

FME Face class.

Create an instance of a Face geometry object.

init(boundary, mode)

This routine creates a new Face geometry object. The stroked boundary of the area isused. If there are any errors, None may be returned. If the area passed in is not in 3D, then the default value for the z coordinates is 0.0

Parameters

boundary (FMEArea) - The boundary as an area.
mode(int) - The mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.

Returns: FMEFace

An instance of a face geometry object.

init(boundary, mode, matrix)

This routine creates a new Face geometry object. With the specified transformation matirx

Parameters

boundary (FMEArea) - The boundary as an area.
mode(int) - The mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.
matrix (list of lists of floats) - transformation matrix applied to the face, formatted [[dddd][dddd][dddd]].

Returns: FMEFace

An instance of a face geometry object.

init(boundary, mode)

This routine creates a new Face geometry object. The stroked boundary of the line isused. If there are any errors, None may be returned. If the line passed in is not in 3D, then the default value for the z coordinates is 0.0

Parameters

boundary (FMELine) - The boundary as an line.
mode(int) - The mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.

Returns: FMEFace

An instance of a face geometry object.

init(boundary, mode, matrix)

This routine creates a new Face geometry object. With the specified transformation matirx

Parameters

boundary (FMELine) - The boundary as an line.
mode(int) - The mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.
matrix (list of lists of floats) - transformation matrix applied to the face, formatted [[dddd][dddd][dddd]].

Returns: FMEFace

An instance of a face geometry object.

init(points, mode)

Creates a face from the list of points passed in.

Parameters

points (list of tuple of float) - The list of points to set to the face. The points are represented as (x, y, z) tuples
mode(int) - The mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.

Returns: FMEFace

An instance of a face geometry object.

init(points, mode matrix)

Creates a face from the list of points passed in.

Parameters

points (list of tuple of float) - The list of points to set to the face. The points are represented as (x, y, z) tuples
mode(int) - The mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.
matrix (list of lists of floats) - transformation matrix applied to the face, formatted [[dddd][dddd][dddd]].

Returns: FMEFace

An instance of a face geometry object.

init(face)

Create a copy of the passed in Face geometry object.

Parameters

face FMEFace - The Face geometry object to create a copy of.

Returns: FMEFace

An instance of a Face Geometry object.

Instance Methods

[hide private]

__init__(MultipleInvocations)
x.__init__(...) initializes x; see help(type(x)) for signature

None

addInnerBoundaryCurve(innerBoundary, closeMode)
Adds an inner-boundary area to this face, represented by the specified curve.

None

addInnerBoundarySimpleArea(innerBoundary, closeMode)
Adds an inner-boundary area to this face.

FMEArea of a terminal type.

getAsArea()
Returns the face as an area.

FMEArea of a terminal type.

getAsAreaInLocalCoordinates()
Returns the face as an area in local coordinates.

tuple of 3 floats

getNormal()
Returns the normal vector of this face, normalized to the unit length.

list of lists of floats

getTransformationMatrix()
Gets this face's transformation matrix.

bool

hasTransformationMatrix()
This method determines if the face has a transformation matrix or not.

bool

isConvex()
Determines if face is convex.

None

removeTransformationMatrix()
Removes this face's transformation matrix.

None

setArea(area, closeMode)
Sets the area of this face.

None

setAreaInLocalCoordinates(area, closeMode)
Sets the area of this face.

None

setTransformationMatrix(matrix)
Sets this face's transformation matrix, replacing the existing matrix if it exists.

Inherited from FMESimpleSurface: numParts

Inherited from FMESurface: __decIterRef__, __incIterRef__, __iter__, deleteSide, getAppearanceReference, getAsWireFrame, isInPlane, isOriented, isPlanar, offset, orient, reorient, reverse, rotate2D, scale, setAppearanceReference, sideExists

Inherited from FMEGeometry: __getObject__, __new__, boundingBox, boundingCube, bounds, clearMeasures, copyAttributesFromFeature, copyNameFromGeometry, copyTraitsFromGeometry, copyTraitsToFeature, deleteName, force2D, force3D, getArea, getMeasureNames, getName, getTrait, getTraitNames, getTraitNullMissingAndType, getTraitType, hasMeasures, hasName, is3D, isCollection, measureExists, removeMeasure, removeTraits, renameMeasure, setName, setTrait, setTraitNullWithType

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(MultipleInvocations)
(Constructor)

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__

addInnerBoundaryCurve(innerBoundary, closeMode)

Adds an inner-boundary area to this face, represented by the specified curve. Refer to setArea() for the usage of the parameter closeMode. If None is passed in, this face will not be modified.

Parameters:

innerBoundary (FMECurve) - The face's inner boundary as a FMECurve.
closeMode (int) - The face's close mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.

Returns: None

addInnerBoundarySimpleArea(innerBoundary, closeMode)

Adds an inner-boundary area to this face. represented by the specified simple area. Refer to setArea() for the usage of the parameter closeMode. If None is passed in, this face will not be modified.

Parameters:

innerBoundary (FMECurve) - The face's inner boundary as a FMESimpleArea.
closeMode (int) - The face's close mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.

Returns: None

getAsArea()

Returns the face as an area.

Returns: FMEArea of a terminal type.: The face as a FMEArea object. Note: This method returns a terminal geometry type of the FMEArea; i.e. one of the leaf classes in the FMEArea inheritance graph. For example, a FMEPolygon is returned if the geometry truly is a polygon.

getAsAreaInLocalCoordinates()

Returns the face as an area in local coordinates.

Returns: FMEArea of a terminal type.: The face as a FMEArea object. Note: This method returns a terminal geometry type of the FMEArea; i.e. one of the leaf classes in the FMEArea inheritance graph. For example, a FMEPolygon is returned if the geometry truly is a polygon.

getNormal()

Returns the normal vector of this face, normalized to the unit length. The returned vector is computed using Newell's method on the vertices contained on the outer boundary of this face. If the face is a single point, then a zero vector will be returned.

Returns: tuple of 3 floats: The normal vector of this face.

getTransformationMatrix()

Gets this face's transformation matrix. If the face does not have such a matrix, an identity matrix is returned. Only the top three rows of the matrix will be returned, as the bottom row is always [ 0 0 0 1 ].

Returns: list of lists of floats: The face's tranformation matrix, formatted [[dddd][dddd][dddd]].

hasTransformationMatrix()

This method determines if the face has a transformation matrix or not.

Returns: bool: Returns True if this face has a transformation matrix, and False otherwise.

isConvex()

Determines if face is convex. The polygon making up the area is convex if all internal angles are less than 180 degrees and it's not self-intersecting. Imperfectly planar 3D polygons are tolerated.

Returns: bool: Returns True if this face is convex, and False otherwise.

setArea(area, closeMode)

Sets the area of this face. The existing area will be replaced and the transformation matrix will be reset.The parameter closeMode specifies how this face treates areas that are not closed in 3D.

If FME_CLOSE_3D_AVERAGE_MODE is specified, an additional point is added, connecting the start and end points of the area. This point is computed by the average of the start and end points, in 3D.
If FME_CLOSE_3D_EXTEND_MODE is specified, the start and end points are connected with no additional points.
If FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE, we use the AVERAGE mode if and only if the start and end points lie on the same coordinate plane (i.e. they share the same x-, y-, or z-coordinates).
Otherwise, the EXTEND mode is used.
If the input area is None, then an error will be generated.

Parameters:

area (FMEArea) - The area to set on the face.
closeMode (int) - The face's close mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.

Returns: None

setAreaInLocalCoordinates(area, closeMode)

Sets the area of this face. the transformation matrix untouched.Refer to setArea() for the usage of the parameter closeMode.

Parameters:

area (FMEArea) - The area to set on the face.
closeMode (int) - The face's close mode. Must be either FME_CLOSE_3D_AVERAGE_MODE, FME_CLOSE_3D_EXTEND_MODE, or FME_CLOSE_3D_EXTEND_OR_AVERAGE_Z_MODE.

Returns: None

setTransformationMatrix(matrix)

Sets this face's transformation matrix, replacing the existing matrix if it exists. Only three rows are expected in the input array, as a bottom row of [ 0 0 0 1 ] is assumed.

Parameters:

matrix (list of lists of floats) - The transformation matrix, formatted [[dddd][dddd][dddd]].

Returns: None

Class FMEFace

__init__(MultipleInvocations) (Constructor)

addInnerBoundaryCurve(innerBoundary, closeMode)

addInnerBoundarySimpleArea(innerBoundary, closeMode)

getAsArea()

getAsAreaInLocalCoordinates()

getNormal()

getTransformationMatrix()

hasTransformationMatrix()

isConvex()

setArea(area, closeMode)

setAreaInLocalCoordinates(area, closeMode)

setTransformationMatrix(matrix)

init(MultipleInvocations)
(Constructor)