Ngon Class Reference Library » Ngon

#include <lib_ngon.h>

公共成员函数
	Ngon ()
	~Ngon ()
	Ngon (const CPolygon &ply)
	Ngon (const Ngon &src)
Ngon &	operator= (const Ngon &src)
Bool	Alloc ( Int32 cnt, Int32 scnt)
void	Free ()
Bool	CopyFrom (const Ngon *src)
Bool	CopyFrom ( Int32 cnt, Int32 scnt, Int32 *pts, Int32 *segs)
void	发行 ()
Float	CalcArea ( Int32 seg, const 向量 *p, 矩阵 &m)

Public Attributes
Int32 *	points
Int32 *	segments
Int32	count
Int32	segcount

构造函数 & 析构函数文档编制

◆  Ngon() [1/3]

Ngon

(

)

Constructor.

◆  ~Ngon()

~ Ngon

(

)

Destructor.

◆  Ngon() [2/3]

Ngon ( const CPolygon &  ply )

explicit

Constructor from polygon in ply .

参数

[in]

ply

A polygon.

◆  Ngon() [3/3]

Ngon

(

const Ngon &

src

)

Copy constructor from another N-gon in src .

参数

[in]

src

Another N-gon.

成员函数文档编制

◆  operator=()

Ngon & operator=

(

const Ngon &

src

)

Assignment operator.

参数

[in]

src

Another N-gon.

返回

The assigned N-gon.

◆  Alloc()

Bool Alloc	(	Int32	cnt ,
		Int32	scnt
	)

Allocates data for cnt points and scnt segments.

参数

[in]	cnt	The point count.
[in]	scnt	The segment count.

返回

true if successful, otherwise false .

◆  Free()

void Free

(

)

Frees the internal data.

◆  CopyFrom() [1/2]

Bool CopyFrom

(

const Ngon *

src

)

Copies data from src .

参数

[in]

src

The source N-gon.

返回

true if successful, otherwise false .

◆  CopyFrom() [2/2]

Bool CopyFrom	(	Int32	cnt ,
		Int32	scnt ,
		Int32 *	pts ,
		Int32 *	segs
	)

Copies data from the passed arrays.

参数

[in]	cnt	The point count.
[in]	scnt	The segment count.
[in]	pts	The points array. The caller owns the pointed array.
[in]	segs	The segments array. The caller owns the pointed array.

返回

true if successful, otherwise false .

◆  Release()

void Release

(

)

Releases the internal arrays, i.e. so that they are not freed by the destructor.

◆  CalcArea()

Float CalcArea	(	Int32	seg ,
		const 向量 *	p ,
		矩阵 &	m
	)

Calculates the N-gon area.

参数

[in]	seg	The segment.
[in]	p	The points array.
[in]	m	The projection matrix.

返回

The calculated area.

Member Data Documentation

◆  points

Int32 * points

Point array.

◆  segments

Int32 * segments

Segments array.

◆  count

Int32 count

Point count.

◆  segcount

Int32 segcount

Segment count.