[mxcad_3d API Document](../README. md)/Mx3dGetTrsf

Class: Mx3dGeTrsf

Representing geometric transformations

Hierarchy

• Mx3dGeObject

  ↳ Mx3dGeTrsf

Table of contents

Constructors

• constructor

Methods

• Invert
• Inverted
• IsNegative
• Multiplied
• Multiply
• Power
• Powered
• PreMultiply
• ScaleFactor
• SetMirrorByAxis
• SetMirrorByCSYSR
• SetMirrorByPoint
• SetRotation
• SetScale
• SetScaleFactor
• SetTranslationBy2Points
• SetTranslationByVec
• SetTranslationPart
• SetValues
• Transforms
• Value

Constructors

constructor

• new Mx3dGeTrsf()

Overrides

Mx3dGeObject.constructor

Methods

Invert

▸ Invert(): void

Transpose the transformation matrix

Returns

void

---

Inverted

▸ Inverted(): Mx3dGeTrsf

Obtain the transposed matrix of the transformation matrix

Returns

Mx3dGeTrsf

Transpose matrix

---

IsNegative

▸ IsNegative(): boolean

Determine whether the determinant of this transformation matrix is negative

Returns

boolean

Is it negative

---

Multiplied

▸ Multiplied(t): Mx3dGeTrsf

Obtain the result of matrix multiplication, [res]=[me] * t, where [res] represents the result, [me] represents itself, and t is another transformation matrix

Parameters

Name	Type	Description
T	[Mx3dGetStrf] (Mx3dGetStrf. md)	Another transformation matrix

Returns

Mx3dGeTrsf

The result of matrix multiplication

---

Multiply

▸ Multiply(t): void

Multiplying oneself by another transformation matrix, [me]=[me] * t, where [me] represents oneself and t is another transformation matrix

Parameters

Name	Type	Description
T	[Mx3dGetStrf] (Mx3dGetStrf. md)	Another transformation matrix

Returns

void

---

Power

▸ Power(n): void

Perform a power n operation on oneself, [me] * [me] *.... * [me], where [me] represents oneself and is multiplied n times

Parameters

Name	Type	Description
N	number	times

Returns

void

---

Powered

▸ Powered(n): Mx3dGeTrsf

Obtain the result of the nth power operation of the current transformation matrix, [res]=[me] * [me] *.... * [me], where [res] represents the result, [me] represents itself, and n [me] are multiplied

Parameters

Name	Type	Description
N	number	times

Returns

Mx3dGeTrsf

The result to the power of n

---

PreMultiply

▸ PreMultiply(t): void

Another transformation matrix multiplied by itself, [me]=t * [me], [me] represents itself, and t is another transformation matrix

Parameters

Name	Type	Description
T	[Mx3dGetStrf] (Mx3dGetStrf. md)	Another transformation matrix

Returns

void

---

ScaleFactor

▸ ScaleFactor(): number

Obtain the scaling ratio of the transformation

Returns

number

Scale ratio

---

SetMirrorByAxis

▸ SetMirrorByAxis(axis): void

Set up axis mirroring transformation

Parameters

Name	Type	Description
Axis	[Mx3dGeAxis] (Mx3dGeAxis. md)	Mirror Axis

Returns

void

---

SetMirrorByCSYSR

▸ SetMirrorByCSYSR(csysr): void

Set up a coordinate system mirror transformation, where the mirror plane is the XOY plane of the coordinate system

Parameters

Name	Type	Description
Csysr	[Mx3dGeCSYSR] (Mx3dGeCSYSR. md)	Mirror coordinate system

Returns

void

---

SetMirrorByPoint

▸ SetMirrorByPoint(point): void

Set up point mirror transformation

Parameters

Name	Type	Description
Point	UniPoint	Mirror Point

Returns

void

---

SetRotation

▸ SetRotation(axis, ang): void

Set the transformation to rotate a certain angle according to the axis

Parameters

Name	Type	Description
Axis	[Mx3dGeAxis] (Mx3dGeAxis. md)	Rotation axis
'ang'	'number'	Rotation angle

Returns

void

---

SetScale

▸ SetScale(point, s): void

Set up scaling transformation based on points and a certain proportion

Parameters

Name	Type	Description
Point	UniPoint	Zoom Point
S	number	scaling ratio

Returns

void

---

SetScaleFactor

▸ SetScaleFactor(s): void

Set zoom ratio

Parameters

Name	Type	Description
S	number	scaling ratio

Returns

void

---

SetTranslationBy2Points

▸ SetTranslationBy2Points(point1, point2): void

Set the translation transformation of the vector formed by subtracting the endpoint from the starting point

Parameters

Name	Type	Description
Point1	UniPoint	Starting Point
Point2	UniPoint	Endpoint

Returns

void

---

SetTranslationByVec

▸ SetTranslationByVec(vec): void

Set the translation transformation according to the vector, with the direction and distance of the movement being the direction and magnitude of the vector, respectively

Parameters

Name	Type	Description
Vec	UniVec	Vector

Returns

void

---

SetTranslationPart

▸ SetTranslationPart(vec): void

Set up separate translation transformations based on vectors

Parameters

Name	Type	Description
Vec	[Mx3dGeVec] (Mx3dGeVec. md)	Vector

Returns

void

---

SetValues

▸ SetValues(a11, a12, a13, a14, a21, a22, a23, a24, a31, a32, a33, a34): void

Set affine transformation matrix other than translation transformation

Parameters

Name	Type	Description
A11	number	Line 1, Column 1
A12	number	Line 1, Column 2
A13	number	Line 1, Column 3
A14	number	Line 1, Column 4
A21	number	2nd row, 1st column
A22	number	2nd row, 2nd column
A23	number	2nd row, 3rd column
A24	number	2nd row, 4th column
A31	number	Line 3, Column 1
A32	number	Line 3, Column 2
A33	number	Line 3, Column 3
A34	Number	Row 3, Column 4

Returns

void

---

Transforms

▸ Transforms(x, y, z): void

Transform a point using the current transformation matrix. The parameters are referenced and will be modified by the function

Parameters

Name	Type
x	number
y	number
z	number

Returns

void

---

Value

▸ Value(row, col): number

Retrieve the element values of the specified row and column in the transformation matrix

Parameters

Name	Type	Description
Row	number	row
Col	number	column

Returns

number

Element value