de.grogra.imp3d

Class CanvasCamera

java.lang.Object

de.grogra.imp3d.CameraBase

de.grogra.imp3d.CanvasCamera

public class CanvasCamera
extends CameraBase

Field Summary

Fields

Modifier and Type	Field and Description
static int	INSIDE_CLIPPING
static int	OUTSIDE_XY_CLIPPING
static int	OUTSIDE_Z_CLIPPING

Constructor Summary

Constructors

Constructor and Description
CanvasCamera()

Method Summary

Methods

Modifier and Type	Method and Description
void	getRay(float x, float y, Point3d origin, Vector3d direction) Determines the ray which starts at the camera and goes through the specified point on the image plane of the camera.
float	getScaleAt(double x, double y, double z) Computes an estimate for the scaling factor from 3D world coordinates at (x, y, z) to 2D coordinates on the camera plane.
float	getScaleAt(float z) Computes an estimate for the scaling factor from view coordinates around a depth of z to 2D coordinates on the camera plane.
Matrix4d	getWorldToViewTransformation() Returns the world-to-view transformation of this camera.
float	getZFar()
float	getZNear()
int	projectView(float x, float y, float z, Tuple2f point2D, boolean checkClip)
int	projectWorld(Tuple3d point, Tuple2f point2D)
void	setDimension(int width, int height)
void	setWorldToViewTransformation(Matrix4d t, Transaction ts)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSIDE_CLIPPING

public static final int INSIDE_CLIPPING

See Also:

Constant Field Values

OUTSIDE_XY_CLIPPING

public static final int OUTSIDE_XY_CLIPPING

See Also:

Constant Field Values

OUTSIDE_Z_CLIPPING

public static final int OUTSIDE_Z_CLIPPING

See Also:

Constant Field Values

Constructor Detail

CanvasCamera

public CanvasCamera()

Method Detail

getRay

public void getRay(float x,
          float y,
          Point3d origin,
          Vector3d direction)

Description copied from class: CameraBase

Determines the ray which starts at the camera and goes through the specified point on the image plane of the camera.

Specified by:

getRay in class CameraBase

Parameters:

x - the x-coordinate on the image plane

y - the y-coordinate on the image plane

origin - the origin of the ray, in world coordinates

direction - the direction of the ray, in world coordinates

getScaleAt

public float getScaleAt(double x,
               double y,
               double z)

Description copied from class: CameraBase

Computes an estimate for the scaling factor from 3D world coordinates at (x, y, z) to 2D coordinates on the camera plane.

Specified by:

getScaleAt in class CameraBase

Parameters:

x - x world coordinate

y - y world coordinate

z - z world coordinate

Returns:

scaling factor of camera projection at location

getScaleAt

public float getScaleAt(float z)

Description copied from class: CameraBase

Computes an estimate for the scaling factor from view coordinates around a depth of z to 2D coordinates on the camera plane.

Specified by:

getScaleAt in class CameraBase

Parameters:

z - z view coordinate

Returns:

scaling factor of camera projection at location

getWorldToViewTransformation

public Matrix4d getWorldToViewTransformation()

Description copied from class: CameraBase

Returns the world-to-view transformation of this camera. It transforms world coordinates to view coordinates (= camera coordinates).

Specified by:

getWorldToViewTransformation in class CameraBase

Returns:

world-to-view transformation

getZFar

public float getZFar()

Specified by:

getZFar in class CameraBase

getZNear

public float getZNear()

Specified by:

getZNear in class CameraBase

projectView

public int projectView(float x,
              float y,
              float z,
              Tuple2f point2D,
              boolean checkClip)

projectWorld

public int projectWorld(Tuple3d point,
               Tuple2f point2D)

setDimension

public void setDimension(int width,
                int height)

setWorldToViewTransformation

public void setWorldToViewTransformation(Matrix4d t,
                                Transaction ts)