Class Tri3d

Namespace

Hi.Geom

Assembly

HiGeom.dll

Basic 3D Triangle.

public class Tri3d : ITri3d, IFlat3d, IExpandToBox3d, IEquatable<Tri3d>, IBinaryIo, IWriteBin

Inheritance

object

Tri3d

Implements

ITri3d

IFlat3d

IExpandToBox3d

IEquatable<Tri3d>

IBinaryIo

IWriteBin

Inherited Members

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Extension Methods

BinIoUtil.ToBytes(IWriteBin)

GeomUtil.GetBox3d(IExpandToBox3d)

DuplicateUtil.TryDuplicate<TSelf>(TSelf, params object[])

InvokeUtil.SelfInvoke<TSrc>(TSrc, Action<TSrc>)

InvokeUtil.SelfInvoke<TSrc, TDst>(TSrc, Func<TSrc, TDst>)

ColorUtil.GetGloomyColor(object, double, double)

NameUtil.GetSelectionName(object)

StringUtil.GetPropertyStringIfToStringNotOverloaded(object, bool, bool)

LockUtil.Lock(object)

Constructors

Tri3d(ITri3d)

Creates a triangle from an ITri3d interface

public Tri3d(ITri3d t)

Parameters

t ITri3d

The source triangle implementing ITri3d

Tri3d(ITri3d, Mat4d)

Creates a triangle from an ITri3d interface and transforms it using a matrix

public Tri3d(ITri3d t, Mat4d mat)

Parameters

t ITri3d

The source triangle implementing ITri3d

mat Mat4d

The transformation matrix to apply

Tri3d(Tri3d, bool)

Creates a triangle by copying or referencing another triangle

public Tri3d(Tri3d t, bool useRef = false)

Parameters

t Tri3d

The source triangle

useRef bool

If true, references to the source triangle's vertices and normal are used; otherwise, copies are created

Tri3d(Vec3d, Vec3d, Vec3d)

Ctor.

public Tri3d(Vec3d p0, Vec3d p1, Vec3d p2)

Parameters

p0 Vec3d

apex0

p1 Vec3d

apex1

p2 Vec3d

apex2

Tri3d(Vec3d, Vec3d, Vec3d, Vec3d)

Creates a triangle with the specified vertices and normal vector

public Tri3d(Vec3d p0, Vec3d p1, Vec3d p2, Vec3d n)

Parameters

p0 Vec3d

First vertex

p1 Vec3d

Second vertex

p2 Vec3d

Third vertex

n Vec3d

Normal vector

Tri3d(tri3d)

Ctor.

public Tri3d(tri3d src)

Parameters

src tri3d

src

Tri3d(bool)

Ctor.

public Tri3d(bool initAllMemberToNull = false)

Parameters

initAllMemberToNull bool

If true, the three apexes and normal are null; otherwise, they are initialized by the default constructor of Vec3d.

Tri3d(BinaryReader)

Creates a triangle by reading its data from a binary reader

public Tri3d(BinaryReader reader)

Parameters

reader BinaryReader

The binary reader to read from

Fields

n

normal vector of this triangle.

public Vec3d n

Field Value

Vec3d

ps

Points. Three apexs.

public Vec3d[] ps

Field Value

Vec3d[]

Properties

Area

Gets the area of the triangle

public double Area { get; }

Property Value

double

NativeByteSize

Native byte size.

public static int NativeByteSize { get; }

Property Value

int

Methods

Equals(Tri3d)

Indicates whether the current object is equal to another object of the same type.

public bool Equals(Tri3d other)

Parameters

other Tri3d

An object to compare with this object.

Returns

bool

true if the current object is equal to the other parameter; otherwise, false.

Equals(object)

Determines whether the specified object is equal to the current object.

public override bool Equals(object obj)

Parameters

obj object

The object to compare with the current object.

Returns

bool

true if the specified object is equal to the current object; otherwise, false.

ExpandToBox3d(Box3d)

Expands the destination box. This function is usually used to compute the bounding box of elements.

public void ExpandToBox3d(Box3d dst)

Parameters

dst Box3d

Destination box

GetApex(int)

Gets the specified vertex (apex) of this triangle.

public Vec3d GetApex(int i)

Parameters

i int

Index of the vertex (0-2)

Returns

Vec3d

The position of the specified vertex

GetEdgeArrow(int)

Gets the edge vector from vertex i to vertex i+1.

public Vec3d GetEdgeArrow(int i)

Parameters

i int

The index of the starting vertex (0, 1, or 2).

Returns

Vec3d

The vector representing the edge.

GetHashCode()

Serves as the default hash function.

public override int GetHashCode()

Returns

int

A hash code for the current object.

GetLocate()

Gets an anchor point on this flat surface.

public Vec3d GetLocate()

Returns

Vec3d

A point on the flat surface

GetNormal()

Gets the normal vector of the flat surface.

public Vec3d GetNormal()

Returns

Vec3d

The unit normal vector

GetRewind()

Creates a new triangle with reversed vertex order and flipped normal

public Tri3d GetRewind()

Returns

Tri3d

A new triangle with reversed vertex order

GetTransform(Mat4d)

Creates a new triangle by transforming this triangle using the specified matrix.

public Tri3d GetTransform(Mat4d mat)

Parameters

mat Mat4d

The transformation matrix.

Returns

Tri3d

A new transformed triangle.

GetTranslate(Vec3d)

Creates a new triangle by translating this triangle by the specified vector.

public Tri3d GetTranslate(Vec3d v)

Parameters

v Vec3d

The translation vector.

Returns

Tri3d

A new translated triangle.

GetTriSplition(double[], out Tri3d[], out Tri3d[])

Get triangles splition by pointWeights interpolation. negativeTris or positiveTris are null if no triangles generated. If all pointWeights is 0, no triangle generated.

public void GetTriSplition(double[] pointWeights, out Tri3d[] positiveTris, out Tri3d[] negativeTris)

Parameters

pointWeights double[]

weights of points

positiveTris Tri3d[]

triangles with positive or zero weight

negativeTris Tri3d[]

triangles with negative or zero weight

ReBuildNormal()

Rebuilds the normal vector of the triangle based on its vertices.

public Vec3d ReBuildNormal()

Returns

Vec3d

The rebuilt normal vector.

ReadBin(BinaryReader)

Reads binary data to initialize the object.

public void ReadBin(BinaryReader reader)

Parameters

reader BinaryReader

The binary reader to read from

Rewind()

Reverses the order of the triangle's vertices, which flips the normal direction

public void Rewind()

Rotate(Vec3d, double)

Rotates the triangle around the specified axis by the given angle.

public Tri3d Rotate(Vec3d axis, double rad)

Parameters

axis Vec3d

The axis of rotation.

rad double

The angle of rotation in radians.

Returns

Tri3d

This triangle after rotation.

Set(ITri3d)

Sets this triangle's vertices and normal from an ITri3d interface

public Tri3d Set(ITri3d t)

Parameters

t ITri3d

The source triangle implementing ITri3d

Returns

Tri3d

This triangle instance

Set(ITri3d, Mat4d)

Sets this triangle's vertices and normal from an ITri3d interface and transforms them using a matrix

public Tri3d Set(ITri3d t, Mat4d mat)

Parameters

t ITri3d

The source triangle implementing ITri3d

mat Mat4d

The transformation matrix to apply

Returns

Tri3d

This triangle instance

Set(Tri3d, bool)

Sets this triangle's vertices and normal from another triangle

public Tri3d Set(Tri3d t, bool useRef = false)

Parameters

t Tri3d

The source triangle

useRef bool

If true, references to the source triangle's vertices and normal are used; otherwise, copies are created

Returns

Tri3d

This triangle instance

Set(Vec3d, Vec3d, Vec3d)

Set value.

public Tri3d Set(Vec3d p0, Vec3d p1, Vec3d p2)

Parameters

p0 Vec3d

apex0

p1 Vec3d

apex1

p2 Vec3d

apex2

Returns

Tri3d

this

Set(Vec3d, Vec3d, Vec3d, Vec3d)

Sets the triangle's vertices and normal vector

public Tri3d Set(Vec3d p0, Vec3d p1, Vec3d p2, Vec3d n)

Parameters

p0 Vec3d

First vertex

p1 Vec3d

Second vertex

p2 Vec3d

Third vertex

n Vec3d

Normal vector

Returns

Tri3d

This triangle instance

SetOrderForward(int)

Reorders the triangle's vertices to make the specified vertex the first one

public void SetOrderForward(int index)

Parameters

index int

The index of the vertex to make first (0, 1, or 2)

ToString()

Returns a string that represents the current object.

public override string ToString()

Returns

string

A string that represents the current object.

Transform(Mat4d)

Transforms the triangle using the specified transformation matrix.

public Tri3d Transform(Mat4d mat)

Parameters

mat Mat4d

The transformation matrix.

Returns

Tri3d

This triangle after transformation.

Translate(Vec3d)

Translates the triangle by the specified vector.

public Tri3d Translate(Vec3d v)

Parameters

v Vec3d

The translation vector.

Returns

Tri3d

This triangle after translation.

Translate(double, double, double)

Translates the triangle by the specified x, y, and z coordinates.

public Tri3d Translate(double x, double y, double z)

Parameters

x double

The x-coordinate of the translation.

y double

The y-coordinate of the translation.

z double

The z-coordinate of the translation.

Returns

Tri3d

This triangle after translation.

WriteBin(BinaryWriter)

Writes the object's data to a binary stream.

public void WriteBin(BinaryWriter writer)

Parameters

writer BinaryWriter

The binary writer to write to