Camera类 参考

Public 成员函数
	Camera (long width, long height, Vector3d position, Vector3d target, Vector3d up)
Vector3d	GetPosition ()
void	SetPosition (Vector3d val)
Vector3	GetPositionf ()
Vector3d	GetUp ()
void	SetUp (Vector3d val)
Vector3	GetUpf ()
Vector3d	GetTarget ()
void	SetTarget (Vector3d val)
Vector3	GetTargetf ()
Vector2d	GetPageOffset ()
void	SetPageOffset (Vector2d val)
Vector2	GetPageOffsetf ()
Matrix4d	GetViewMatrix ()
Matrix4	GetViewMatrixf ()
double	GetNear ()
void	SetNear (double val)
double	GetFar ()
void	SetFar (double val)
double	GetFovy ()
void	SetFovy (double val)
ViewPosition	GetOrigin ()
void	SetOrigin (ViewPosition val)
ViewPosition	GetSize ()
void	SetSize (ViewPosition val)
long	GetWidth ()
void	SetWidth (long val)
long	GetHeight ()
void	SetHeight (long val)
double	GetOrthoZoomFactor ()
float	GetOrthoZoomFactorf ()
EnumProjectionType	GetProjectionType ()
void	SetProjectionType (EnumProjectionType val)
Matrix4d	GetProjectionMatrix ()
Matrix4	GetProjectionMatrixf ()
boolean	GetLockNearFar ()
void	SetLockNearFar (boolean val)
Vector3d	GetDirection ()
Vector3	GetDirectionf ()
Vector3d	GetRight ()
Vector3	GetRightf ()
double	GetDistance ()
float	GetDistancef ()
void	LookAt (Vector3d position, Vector3d target, Vector3d up)
void	LookByDirection (Vector3d target, Vector3d dir, Vector3d up)
void	UpdateNearFar (AABox sceneBox)
Vector2d	GetViewportSize ()
Vector2d	GetViewportOrigin ()
Vector4d	GetViewport ()
Vector2d	GetViewportCenter ()
void	Resize (long width, long height)
void	SetOrthoZoomFactor (double zoomFactor)
void	Zoom (double ratio, double distance)
void	SetZoomFactorRange (double minV, double maxV)
void	ClearZoomFactorRange ()
Matrix4d	ComputeOrthoMatrix (double zoomFactor)
boolean	Contain (long winX, long winY)
void	UpdateViewMatrix ()
void	UpdateProjectionMatrix ()
void	Dump ()

详细描述

<>
相机信息
相机视口坐标系

1. Orgion [left, bottom]
   h
   ^------—
   | |
   | |
   O------—> w
   Origon and Size can be Absolute or Relative mode.

   参见

   EnumPositionType2. Camera can be shared among viewports.

成员函数说明

ClearZoomFactorRange()

void Camera.ClearZoomFactorRange

(

)

清除缩放限制

ComputeOrthoMatrix()

Matrix4d Camera.ComputeOrthoMatrix

(

double

zoomFactor

)

根据缩放系数计算正交投影矩阵

参数

zoomFactor

缩放系数

返回

矩阵

Contain()

boolean Camera.Contain	(	long	winX,
		long	winY )

Test if window point is in camera

参数

winX	the x value
winY	the y value

返回

true if in camera.

Dump()

void Camera.Dump

(

)

输出相机信息

GetDirection()

Vector3d Camera.GetDirection

(

)

获取相机朝向，单位向量

GetDistance()

double Camera.GetDistance

(

)

获取相机位置距离观察位置的距离

返回

GetRight()

Vector3d Camera.GetRight

(

)

获取右向量

返回

GetViewport()

Vector4d Camera.GetViewport

(

)

获取视口

返回

{位置,大小}

GetViewportCenter()

Vector2d Camera.GetViewportCenter

(

)

获取视口中心位置

返回

中心点

GetViewportOrigin()

Vector2d Camera.GetViewportOrigin

(

)

获取视口起始位置.

返回

the origin.

GetViewportSize()

Vector2d Camera.GetViewportSize

(

)

获取视口大小.

返回

the width and heigth.

LookAt()

void Camera.LookAt	(	Vector3d	position,
		Vector3d	target,
		Vector3d	up )

设置相机姿态

参数

position	位置
target	观察位置
up	向上向量

LookByDirection()

void Camera.LookByDirection	(	Vector3d	target,
		Vector3d	dir,
		Vector3d	up )

设置相机姿态

参数

target	目标位置
dir	观察方向
up	向上向量

Resize()

void Camera.Resize	(	long	width,
		long	height )

设置视口大小

参数

width<br>
height

SetOrthoZoomFactor()

void Camera.SetOrthoZoomFactor

(

double

zoomFactor

)

设置缩放系数

参数

zoomFactor

缩放系数

SetZoomFactorRange()

void Camera.SetZoomFactorRange	(	double	minV,
		double	maxV )

设置缩放系统范围

参数

minV	最小值
maxV	最大值

UpdateNearFar()

void Camera.UpdateNearFar

(

AABox

sceneBox

)

根据包围盒设置远近距离

参数

sceneBox

包围盒

UpdateProjectionMatrix()

void Camera.UpdateProjectionMatrix

(

)

更新投影矩阵

UpdateViewMatrix()

void Camera.UpdateViewMatrix

(

)

更新视图矩阵

Zoom()

void Camera.Zoom	(	double	ratio,
		double	distance )

按照比例设置缩放系数

参数

ratio	缩放比例( > 0) （正交投影）
distance	移动的距离（透视投影）