Chemical Data Processing Library Python API - Version 1.4.0
Public Member Functions | Properties | List of all members
CDPL.Math.FTranslationMatrix Class Reference

Translation matrix holding floating-point values of type float. More...

+ Inheritance diagram for CDPL.Math.FTranslationMatrix:

Public Member Functions

None __init__ (FTranslationMatrix m)
 Constructs a copy of the translation matrix m. More...
 
None __init__ (int n, float tx=0.0, float ty=0.0, float tz=0.0)
 Constructs an N×N translation matrix with the supplied per-axis translation components. More...
 
None set (float tx=0.0, float ty=0.0, float tz=0.0)
 Sets the per-axis translation components. More...
 
int getObjectID ()
 Returns the numeric identifier (ID) of the wrapped C++ class instance. More...
 
int getSize1 ()
 Returns the dimension N (the row count). More...
 
int getSize2 ()
 Returns the dimension N (the column count). More...
 
bool isEmpty ()
 Tells whether the matrix is empty (size zero). More...
 
float getElement (int i, int j)
 Returns the translation matrix element at (i, j). More...
 
object toArray ()
 Converts the FTranslationMatrix instance into a corresponding numpy.ndarray object. More...
 
FTranslationMatrix assign (FTranslationMatrix m)
 Copy-assigns the dimension and the translation components from m. More...
 
None swap (FTranslationMatrix m)
 Swaps the dimension and the translation components with m. More...
 
float __call__ (int i, int j)
 Returns the translation matrix element at (i, j). More...
 
float __getitem__ (tuple ij)
 Returns the translation matrix element at (i, j). More...
 
int __len__ ()
 Returns the number of rows. More...
 
bool __eq__ (FTranslationMatrix m)
 Returns the result of the comparison operation self == m. More...
 
bool __eq__ (ConstFMatrixExpression e)
 Returns the result of the comparison operation self == e. More...
 
bool __ne__ (FTranslationMatrix m)
 Returns the result of the comparison operation self != m. More...
 
bool __ne__ (ConstFMatrixExpression e)
 Returns the result of the comparison operation self != e. More...
 
str __str__ ()
 Returns a string representation of the FTranslationMatrix instance. More...
 
FTranslationMatrix __pos__ ()
 Returns self. More...
 
ConstFMatrixExpression __neg__ ()
 Returns the result of the operation self * -1. More...
 
ConstFMatrixExpression __add__ (ConstFMatrixExpression e)
 Returns the result of the addition operation self + e. More...
 
ConstFMatrixExpression __sub__ (ConstFMatrixExpression e)
 Returns the result of the subtraction operation self - e. More...
 
ConstFMatrixExpression __mul__ (float t)
 Returns the result of the multiplication operation self * t. More...
 
ConstFMatrixExpression __mul__ (ConstFMatrixExpression e)
 Returns the result of the multiplication operation self * e. More...
 
ConstFVectorExpression __mul__ (ConstFVectorExpression e)
 Returns the result of the multiplication operation self * e. More...
 
ConstFMatrixExpression __div__ (float t)
 Returns the result of the division operation self // t. More...
 
ConstFMatrixExpression __truediv__ (float t)
 Returns the result of the true division operation self / t. More...
 
ConstFMatrixExpression __rmul__ (float t)
 Returns the result of the multiplication operation t * self. More...
 

Properties

 objectID = property(getObjectID)
 
 size1 = property(getSize1)
 
 size2 = property(getSize2)
 

Detailed Description

Translation matrix holding floating-point values of type float.

Constructor & Destructor Documentation

◆ __init__() [1/2]

None CDPL.Math.FTranslationMatrix.__init__ ( FTranslationMatrix  m)

Constructs a copy of the translation matrix m.

Parameters
mThe translation matrix to copy.

◆ __init__() [2/2]

None CDPL.Math.FTranslationMatrix.__init__ ( int  n,
float   tx = 0.0,
float   ty = 0.0,
float   tz = 0.0 
)

Constructs an N×N translation matrix with the supplied per-axis translation components.

Parameters
nThe matrix dimension N.
txThe x-axis translation.
tyThe y-axis translation.
tzThe z-axis translation.

Member Function Documentation

◆ set()

None CDPL.Math.FTranslationMatrix.set ( float   tx = 0.0,
float   ty = 0.0,
float   tz = 0.0 
)

Sets the per-axis translation components.

Parameters
txThe x-axis translation.
tyThe y-axis translation.
tzThe z-axis translation.

◆ getObjectID()

int CDPL.Math.FTranslationMatrix.getObjectID ( )

Returns the numeric identifier (ID) of the wrapped C++ class instance.

Different Python FTranslationMatrix instances may reference the same underlying C++ class instance. The commonly used Python expression a is not b thus cannot tell reliably whether the two FTranslationMatrix instances a and b reference different C++ objects. The numeric identifier returned by this method allows to correctly implement such an identity test via the simple expression a.getObjectID() != b.getObjectID().

Returns
The numeric ID of the internally referenced C++ class instance.

◆ getSize1()

int CDPL.Math.FTranslationMatrix.getSize1 ( )

Returns the dimension N (the row count).

Returns
N.

◆ getSize2()

int CDPL.Math.FTranslationMatrix.getSize2 ( )

Returns the dimension N (the column count).

Returns
N.

◆ isEmpty()

bool CDPL.Math.FTranslationMatrix.isEmpty ( )

Tells whether the matrix is empty (size zero).

Returns
True if N is zero, and False otherwise.

◆ getElement()

float CDPL.Math.FTranslationMatrix.getElement ( int  i,
int  j 
)

Returns the translation matrix element at (i, j).

Parameters
iThe zero-based row index.
jThe zero-based column index.
Returns
1 on the diagonal, the corresponding translation component in the last column (rows 0-2) and 0 elsewhere.
Exceptions
Base.IndexErrorif either index is out of range.

◆ toArray()

object CDPL.Math.FTranslationMatrix.toArray ( )

Converts the FTranslationMatrix instance into a corresponding numpy.ndarray object.

Returns
The generated numpy.ndarray object.
See also
[NUMPY]

◆ assign()

FTranslationMatrix CDPL.Math.FTranslationMatrix.assign ( FTranslationMatrix  m)

Copy-assigns the dimension and the translation components from m.

Parameters
mThe source translation matrix.
Returns
self.

◆ swap()

None CDPL.Math.FTranslationMatrix.swap ( FTranslationMatrix  m)

Swaps the dimension and the translation components with m.

Parameters
mThe translation matrix to swap with.

◆ __call__()

float CDPL.Math.FTranslationMatrix.__call__ ( int  i,
int  j 
)

Returns the translation matrix element at (i, j).

Parameters
iThe zero-based row index.
jThe zero-based column index.
Returns
1 on the diagonal, the corresponding translation component in the last column (rows 0-2) and 0 elsewhere.
Exceptions
Base.IndexErrorif either index is out of range.

◆ __getitem__()

float CDPL.Math.FTranslationMatrix.__getitem__ ( tuple  ij)

Returns the translation matrix element at (i, j).

Parameters
iThe zero-based row index.
jThe zero-based column index.
Returns
1 on the diagonal, the corresponding translation component in the last column (rows 0-2) and 0 elsewhere.
Exceptions
Base.IndexErrorif either index is out of range.

◆ __len__()

int CDPL.Math.FTranslationMatrix.__len__ ( )

Returns the number of rows.

Returns
The number of rows.

◆ __eq__() [1/2]

bool CDPL.Math.FTranslationMatrix.__eq__ ( FTranslationMatrix  m)

Returns the result of the comparison operation self == m.

Parameters
mThe FTranslationMatrix instance to be compared with.
Returns
The result of the comparison operation.

◆ __eq__() [2/2]

bool CDPL.Math.FTranslationMatrix.__eq__ ( ConstFMatrixExpression  e)

Returns the result of the comparison operation self == e.

Parameters
eThe ConstFMatrixExpression instance to be compared with.
Returns
The result of the comparison operation.

◆ __ne__() [1/2]

bool CDPL.Math.FTranslationMatrix.__ne__ ( FTranslationMatrix  m)

Returns the result of the comparison operation self != m.

Parameters
mThe FTranslationMatrix instance to be compared with.
Returns
The result of the comparison operation.

◆ __ne__() [2/2]

bool CDPL.Math.FTranslationMatrix.__ne__ ( ConstFMatrixExpression  e)

Returns the result of the comparison operation self != e.

Parameters
eThe ConstFMatrixExpression instance to be compared with.
Returns
The result of the comparison operation.

◆ __str__()

str CDPL.Math.FTranslationMatrix.__str__ ( )

Returns a string representation of the FTranslationMatrix instance.

Returns
The generated string representation.

◆ __pos__()

FTranslationMatrix CDPL.Math.FTranslationMatrix.__pos__ ( )

Returns self.

Returns
self.

◆ __neg__()

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__neg__ ( )

Returns the result of the operation self * -1.

Returns
A ConstFMatrixExpression instance holding the result of the element negation.

◆ __add__()

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__add__ ( ConstFMatrixExpression  e)

Returns the result of the addition operation self + e.

Parameters
eSpecifies the second addend.
Returns
A ConstFMatrixExpression instance holding the result of the addition.

◆ __sub__()

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__sub__ ( ConstFMatrixExpression  e)

Returns the result of the subtraction operation self - e.

Parameters
eSpecifies the subtrahend.
Returns
A FTranslationMatrix instance holding the result of the subtraction.

◆ __mul__() [1/3]

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__mul__ ( float  t)

Returns the result of the multiplication operation self * t.

Parameters
tSpecifies the multiplier.
Returns
A ConstFMatrixExpression instance holding the result of the multiplication.

◆ __mul__() [2/3]

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__mul__ ( ConstFMatrixExpression  e)

Returns the result of the multiplication operation self * e.

Parameters
eSpecifies the multiplier.
Returns
A ConstFMatrixExpression instance holding the result of the multiplication.

◆ __mul__() [3/3]

ConstFVectorExpression CDPL.Math.FTranslationMatrix.__mul__ ( ConstFVectorExpression  e)

Returns the result of the multiplication operation self * e.

Parameters
eSpecifies the multiplier.
Returns
A ConstFVectorExpression instance holding the result of the multiplication.

◆ __div__()

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__div__ ( float  t)

Returns the result of the division operation self // t.

Parameters
tSpecifies the divisor.
Returns
A ConstFMatrixExpression instance holding the result of the division.

◆ __truediv__()

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__truediv__ ( float  t)

Returns the result of the true division operation self / t.

Parameters
tSpecifies the divisor.
Returns
A ConstFMatrixExpression instance holding the result of the division.

◆ __rmul__()

ConstFMatrixExpression CDPL.Math.FTranslationMatrix.__rmul__ ( float  t)

Returns the result of the multiplication operation t * self.

Parameters
tSpecifies the multiplicand.
Returns
A ConstFMatrixExpression instance holding the result of the multiplication.