Struct Facet

Handling of facet consisting of 3 or 4 points declared as cartesian points

Namespace: FpAssistantCore.General
Assembly: FpAssistantCoreScl.dll
Syntax
public struct Facet

Constructors

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Facet(Point3d, Point3d, Point3d)

Constructor to initialise with a 3 vertices for a triangle based facet

Declaration
public Facet(Point3d vertex1, Point3d vertex2, Point3d vertex3)
Parameters
Type Name Description
Point3d vertex1

Vertex point 1
Point3d vertex2

Vertex point 2
Point3d vertex3

Vertex point 3
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Facet(Point3d, Point3d, Point3d, Point3d)

Constructor to initialise with a 4 vertices for a planar or non-planar based facet

Declaration
public Facet(Point3d vertex1, Point3d vertex2, Point3d vertex3, Point3d vertex4)
Parameters
Type Name Description
Point3d vertex1

Vertex point 1
Point3d vertex2

Vertex point 2
Point3d vertex3

Vertex point 3
Point3d vertex4

Vertex point 4

Properties

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Description

A description relating the facet, not always used but will be presented in reports

Declaration
public string Description { get; set; }
Property Value
Type Description
System.String
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FacetType

The type of facet based on the vertices

Declaration
public FacetType FacetType { get; }
Property Value
Type Description
FacetType

Type of facet
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Vertex1

Contains the first vertex in the facet definition

Declaration
public Point3d Vertex1 { get; }
Property Value
Type Description
Point3d

X, Y and Z cartesian coordinate values
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Vertex2

Contains the second vertex in the facet definition

Declaration
public Point3d Vertex2 { get; }
Property Value
Type Description
Point3d

X, Y and Z cartesian coordinate values
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Vertex3

Contains the third vertex in the facet definition

Declaration
public Point3d Vertex3 { get; }
Property Value
Type Description
Point3d

X, Y and Z cartesian coordinate values
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Vertex4

Contains the fourth vertex in the facet definition

Declaration
public Point3d Vertex4 { get; }
Property Value
Type Description
Point3d

X, Y and Z cartesian coordinate values
Remarks

This might have the same value as the third vertex if a triangular or if the FacetType is set to triangle then this property should be ignored

Methods

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AsTriangles2d()

Convert facet to triangles (2D)

Declaration
public Triangle2d[] AsTriangles2d()
Returns
Type Description
Triangle2d[]
Remarks

There will be 1 triangle for a 3 point facet otherwise 2 triangles will be returned

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AsTriangles3d()

Convert facet to triangles (3D)

Declaration
public Triangle3d[] AsTriangles3d()
Returns
Type Description
Triangle3d[]
Remarks

There will be 1 triangle for a 3 point facet otherwise 2 triangles will be returned

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Equals(Object)

Declaration
public override bool Equals(object obj)
Parameters
Type Name Description
System.Object obj
Returns
Type Description
System.Boolean
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GetHashCode()

Declaration
public override int GetHashCode()
Returns
Type Description
System.Int32
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IsCoplanar(Point3d, Point3d, Point3d, Point3d)

Determine if 4 points are coplanar

Declaration
public static bool IsCoplanar(Point3d point3d_1, Point3d point3d_2, Point3d point3d_3, Point3d point3d_4)
Parameters
Type Name Description
Point3d point3d_1

Vertex point 1
Point3d point3d_2

Vertex point 2
Point3d point3d_3

Vertex point 3
Point3d point3d_4

Vertex point 4
Returns
Type Description
System.Boolean

True if coplanar
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IsCoplanar(Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double)

Determine if 4 points of X,Y,Z are coplanar

Declaration
public static bool IsCoplanar(double x1, double y1, double z1, double x2, double y2, double z2, double x3, double y3, double z3, double x, double y, double z)
Parameters
Type Name Description
System.Double x1

X coordinate of point 1
System.Double y1

Y coordinate of point 1
System.Double z1

Z coordinate of point 1
System.Double x2

X coordinate of point 2
System.Double y2

Y coordinate of point 2
System.Double z2

Z coordinate of point 2
System.Double x3

X coordinate of point 3
System.Double y3

Y coordinate of point 3
System.Double z3

Z coordinate of point 3
System.Double x
System.Double y
System.Double z
Returns
Type Description
System.Boolean

True if coplanar

Operators

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Equality(Facet, Facet)

Declaration
public static bool operator ==(Facet a1, Facet a2)
Parameters
Type Name Description
Facet a1
Facet a2
Returns
Type Description
System.Boolean
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Inequality(Facet, Facet)

Declaration
public static bool operator !=(Facet a1, Facet a2)
Parameters
Type Name Description
Facet a1
Facet a2
Returns
Type Description
System.Boolean