PnSPatch Class Reference

Represents a polynomial patch in Bernstein–Bézier form. More...

#include <PnSPatch.hpp>

Public Member Functions
	PnSPatch ()
	Default constructor.
	~PnSPatch ()
	Destructor.
	PnSPatch (const PnSPatch &patch)
	Copy constructor.
	PnSPatch (PnSPatch &&patch) noexcept
	Move constructor.
PnSPatch &	operator= (const PnSPatch &a_Other)
	Copy assignment operator.
PnSPatch &	operator= (PnSPatch &&other) noexcept
	Move assignment operator.
const double &	operator() (uint32_t i, uint32_t j, uint32_t k) const
	Access Bézier coefficient by index.
bool	isValid () const
	Check whether this patch is valid.
void	degRaise ()
	Perform degree elevation on the patch.
uint32_t	getDegreeU () const
	Get the polynomial degree in the u-direction.
uint32_t	getDegreeV () const
	Get the polynomial degree in the v-direction.

Private Member Functions
	PnSPatch (Patch *impl)
	Construct a patch from an internal implementation.

Private Attributes
Patch *	impl
	Opaque pointer to implementation (PIMPL idiom). This is to ensure binary compatibility.

Friends
class	PnSpline

Detailed Description

Represents a polynomial patch in Bernstein–Bézier form.

A PnSPatch stores the coefficients and degree information of a single spline patch.

This class uses the PIMPL idiom to ensure binary compatibility across different versions of the library. The member functions are inline functions that call binary safe C functions declared in PnSPatch_impl.hpp.

Constructor & Destructor Documentation

PnSPatch() [1/4]

PnSPatch::PnSPatch

(

)

Default constructor.

Constructs an empty patch.

PnSPatch() [2/4]

PnSPatch::PnSPatch ( const PnSPatch & patch )

inline

Copy constructor.

Parameters

patch

Another patch to copy from.

PnSPatch() [3/4]

PnSPatch::PnSPatch ( PnSPatch && patch )

inlinenoexcept

Move constructor.

Parameters

patch

Another patch to move from.

PnSPatch() [4/4]

PnSPatch::PnSPatch ( Patch * impl )

inlineprivate

Construct a patch from an internal implementation.

Parameters

impl	Pointer to underlying implementation.

Only the PnSpline class can call this constructor.

Member Function Documentation

degRaise()

void PnSPatch::degRaise ( )

inline

Perform degree elevation on the patch.

Degree raise the patch upto degree 3 for each paramter. Degree greater than 3 will remain unchanged. This is not relevant for PnS3.

getDegreeU()

uint32_t PnSPatch::getDegreeU ( ) const

inline

Get the polynomial degree in the u-direction.

Returns

Degree in u.

getDegreeV()

uint32_t PnSPatch::getDegreeV ( ) const

inline

Get the polynomial degree in the v-direction.

Returns

Degree in v.

isValid()

bool PnSPatch::isValid ( ) const

inline

Check whether this patch is valid.

Returns

True if the patch is valid.

operator()()

const double & PnSPatch::operator() ( uint32_t i, uint32_t j, uint32_t k ) const

inline

Access Bézier coefficient by index.

Parameters

i	Index in the u-direction between 0 and Degree in u-direction.
j	Index in the v-direction between 0 and Degree in v-direction.
k	Dimension of control point between 0 and 2 (x, y, or z).

Returns

Const reference to the coefficient value.

operator=() [1/2]

PnSPatch & PnSPatch::operator= ( const PnSPatch & a_Other )

inline

Copy assignment operator.

Parameters

a_Other

Another patch to copy from.

Returns

Reference to this patch.

operator=() [2/2]

PnSPatch & PnSPatch::operator= ( PnSPatch && other )

inlinenoexcept

Move assignment operator.

Parameters

other

Another patch to move from.

Returns

Reference to this patch.

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The documentation for this class was generated from the following file:

• src/api/PnSPatch.hpp