class CAAMTriangle

Triangle container with built-in hit test.

Inheritance:

CAAMTriangle

Public Methods

double Area() const

Returns the area.

CAAMTriangle( int _v1, int _v2, int _v3, std::vector<CAAMPoint>* pPoints )

Constructor.

void Calc_dD()

Cache function.

CAAMPoint CenterPoint( ) const

bool IsInside(const CAAMPoint &p, double &alpha, double &beta, double &gamma) const

bool IsInside(const CAAMPoint &p) const

inline int V1() const

Returns index to point 1

inline int V2() const

Returns index to point 2

inline int V3() const

Returns index to point 3

Private Fields

std::vector<CAAMPoint> * m_pPoints

The point vector from which the triangle is defined

int m_v1

Index to point 1

int m_v2

Index to point 2

int m_v3

Index to point 3

Documentation

This class is a simple triangle structure defined by three indexes to a list of points. Included functionality is a hit test.

std::vector<CAAMPoint> * m_pPoints

The point vector from which the triangle is defined

int m_v1

Index to point 1

int m_v2

Index to point 2

int m_v3

Index to point 3

inline int V1() const

Returns index to point 1

inline int V2() const

Returns index to point 2

inline int V3() const

Returns index to point 3

CAAMTriangle( int _v1, int _v2, int _v3, std::vector<CAAMPoint>* pPoints )

Constructor.

Returns:

Nothing.

Author:

Mikkel B. Stegmann

Version:

11-15-2000

void Calc_dD()

Cache function.

Returns:

Nothing.

Author:

Mikkel B. Stegmann

Version:

11-15-2000

bool IsInside(const CAAMPoint &p) const

Returns true if the point 'p' is inside the triangle.

Parameters:

p - The point to test

Returns:

True if the point is inside, otherwise false.

Author:

Mikkel B. Stegmann

Version:

2-14-2000

bool IsInside(const CAAMPoint &p, double &alpha, double &beta, double &gamma) const

Performs a hit test on the point p. If p is inside -- the position of p relative to the triangle is returned.

The relative position is:

p = alpha*p1 + beta*p2 + gamma*p3

Where p1-3 is the three points of the triangle.

Parameters:

p - The point to test alpha Relative x1 position. beta Relative x2 position. gamma Relative x3 position.

Returns:

True if the point is inside, otherwise false.

Author:

Mikkel B. Stegmann

Version:

2-14-2000

CAAMPoint CenterPoint( ) const

Returns the center point of the triangle.

Returns:

Nothing.

Author:

Mikkel B. Stegmann

Version:

4-4-2000

double Area() const

Returns the area.

Returns:

The area.

Author:

Mikkel B. Stegmann

Version:

11-15-2000

This class has no child classes.

Friends:

class CAAMMesh

Author:

Mikkel B. Stegmann

Version:

02-10-2000

See Also:

CAAMMesh, CAAMPoint.

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