nl.kun.Engine3D
Class TArc3D

java.lang.Object
  |
  +--nl.kun.Engine3D.TVector3D
        |
        +--nl.kun.Engine3D.TCoordSys3D
              |
              +--nl.kun.Engine3D.TEntity3D
                    |
                    +--nl.kun.Engine3D.TArc3D

public class TArc3D

extends TEntity3D

This class can be used to draw an arc between 2 3D points, by specifying a radius, center, begin angle and end angle. The arc is NOT drawn perspectively correct, but will only be correct when the plane of the arc and the plane of the camera are parallel. It is possible to draw a string halfway of the arc.

Field Summary

double	beginAngle The beginAngle
double	endAngle The endangle
double	Radius Radius of the arc
java.lang.String	Text The text string that will be displayed between the begin and endpoint of the arc

Fields inherited from class nl.kun.Engine3D.TEntity3D

color, GlobalCords, ParentGlobalCords, Vissible

Fields inherited from class nl.kun.Engine3D.TCoordSys3D

Xaxis, Yaxis, Zaxis

Fields inherited from class nl.kun.Engine3D.TVector3D

DBSCIENTIFIC, DBSTANDARD, x, y, z

Constructor Summary

TArc3D()
Empty constructor.

TArc3D(double _cx, double _cy, double _cz, double _Radius, double _beginAngle, double _endAngle, java.lang.String _Text, java.awt.Color _cl)
Constructor.

TArc3D(TVector3D _Center, double _Radius, double _beginAngle, double _endAngle, java.lang.String _Text, java.awt.Color _cl)
Constructor.

Method Summary

TArc3D	Arc3D(TVector3D _Center, double _Radius, double _beginAngle, double _endAngle, java.lang.String _Text) A constructor like routine.
void	changeAngle(double _alpha) A procedure that lets you change the end angle.
double	Depth(TCamera3D _cam) This routine prerenders the objects and calculates the distances from the object to the camera (depth).
void	Draw(TCamera3D _cam, Viewport _Viewport) Draws the vissible parts of this object onto the viewport, as if it where projecting itself on a camera.

Methods inherited from class nl.kun.Engine3D.TEntity3D

InheritGlobalCords, Rotate, Translate, Translate, Vector3D, Vector3D

Methods inherited from class nl.kun.Engine3D.TCoordSys3D

CoordSys3D, CoordSys3D, CoordSys3D, Global2Local, Global2Local, Global2Local, Local2Global, Local2Global, Local2Global, toString

Methods inherited from class nl.kun.Engine3D.TVector3D

Angle, Double2String, Double2String, Modulus, Modulus, Negate, Negate, Normalize, Normalize, NulVec, StdXaxis, StdYaxis, StdZaxis, String2Double, VAdd, VCrossProduct, VCrossProduct, VDotProduct, Vector3D, VPerpendicular, VPerpendicular, VScalarProduct, VScalarProduct, VScalarProduct, VSubstract, VSubstract

Methods inherited from class java.lang.Object

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

Field Detail

Radius

public double Radius

Radius of the arc

beginAngle

public double beginAngle

The beginAngle

endAngle

public double endAngle

The endangle

Text

public java.lang.String Text

The text string that will be displayed between the begin and endpoint of the arc

Constructor Detail

TArc3D

public TArc3D(double _cx,
              double _cy,
              double _cz,
              double _Radius,
              double _beginAngle,
              double _endAngle,
              java.lang.String _Text,
              java.awt.Color _cl)

Constructor.

Parameters:

_cx - The x component of the center of the arc

_cy - The y component of the center of the arc

_cz - The z component of the center of the arc

_Radius - The radius of the arc

_beginAngle - The starting angle of the arc in radians

_endAngle - The end angle of the arc in radians

_Text - The string which contains the text to be displayed halfway of the arc.

_cl - The color of the arc and string.

TArc3D

public TArc3D(TVector3D _Center,
              double _Radius,
              double _beginAngle,
              double _endAngle,
              java.lang.String _Text,
              java.awt.Color _cl)

Constructor.

Parameters:

_Center - A TVector3D object for the center of the arc

_Radius - The radius of the arc

_beginAngle - The starting angle of the arc in radians

_endAngle - The end angle of the arc in radians

_Text - The string which contains the text to be displayed halfway of the arc.

_cl - The color of the arc and string.

TArc3D

public TArc3D()

Empty constructor. Creates an arc with center (0,0,0), radius 1 and beginAngle=endAngle=0 rad.

Method Detail

Arc3D

public TArc3D Arc3D(TVector3D _Center,
                    double _Radius,
                    double _beginAngle,
                    double _endAngle,
                    java.lang.String _Text)

A constructor like routine. Used to change the variables of the object without constructing it.

Parameters:

_Center - A TVector3D object for the center of the arc

_Radius - The radius of the arc

_beginAngle - The starting angle of the arc in radians

_endAngle - The end angle of the arc in radians

_Text - The string which contains the text to be displayed halfway of the arc.

changeAngle

public void changeAngle(double _alpha)

A procedure that lets you change the end angle.

Parameters:

_alpha - the end angle in radians

Depth

public double Depth(TCamera3D _cam)

Description copied from class: TEntity3D

This routine prerenders the objects and calculates the distances from the object to the camera (depth). If more than one 3D object is inside this object, it returns the average depth. This depth can be used by a a parent TEntityList3D object to sort all TEntity3D's according to depth.

Overrides:

Depth in class TEntity3D

Tags copied from class: TEntity3D

Parameters:

_cam - The camera.

Draw

public void Draw(TCamera3D _cam,
                 Viewport _Viewport)

Description copied from class: TEntity3D

Draws the vissible parts of this object onto the viewport, as if it where projecting itself on a camera.

Overrides:

Draw in class TEntity3D

Tags copied from class: TEntity3D

Parameters:

_cam - The camera.

_Viewport - Viewport object. This viewport object handles clipping and transformation of real world coordinates to screen coordinates. It does the real drawing on the screen.

See Also:

TCamera3D, Viewport