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Class quicktime.qd3d.math.Point2D 

java.lang.Object
   |
   +----quicktime.qd3d.math.Point2D
public final class Point2D
extends Object
implements QuickTimeLib, QuickDraw3DLib
Point2D contains static calls - the implementation is found in the QDPoint class

See Also:
QDPoint

Method Index

o add(QDPoint, Vector2D)
Returns the result of adding a two-dimensional vector to a two-dimensional point.
o distance(QDPoint, QDPoint)
Returns the absolute value of the distance between points p1 and p2.
o distanceSquared(QDPoint, QDPoint)
Returns the square value of the distance between points p1 and p2.
o rRatio(QDPoint, QDPoint, float, float)
Returns the two-dimensional point that lies on the line segment between the points p1 and p2 and that is at a distance from the first point determined by the ratio r1/(r1 + r2).
o subtract(QDPoint, QDPoint)
Returns a two-dimensional vector that is the result of subtracting the point p2 from p1.
o subtract(QDPoint, Vector2D)
Returns the result of subtracting a two-dimensional vector from a two-dimensional point.

Methods

o subtract 
 public static Vector2D subtract(QDPoint p1,
                                 QDPoint p2)
Returns a two-dimensional vector that is the result of subtracting the point p2 from p1.

QuickDraw3D::Q3Point2D_Subtract

Parameters:
p1 - A two-dimensional point
p2 - A two-dimensional point
Returns:
a Vector2D object
o distance 
 public static float distance(QDPoint p1,
                              QDPoint p2)
Returns the absolute value of the distance between points p1 and p2.

QuickDraw3D::Q3Point2D_Distance

Parameters:
p1 - A two-dimensional point
p2 - A two-dimensional point
Returns:
the distance
o distanceSquared 
 public static float distanceSquared(QDPoint p1,
                                     QDPoint p2)
Returns the square value of the distance between points p1 and p2.

QuickDraw3D::Q3Point2D_DistanceSquared

Parameters:
p1 - A two-dimensional point
p2 - A two-dimensional point
Returns:
the distance
o rRatio 
 public static QDPoint rRatio(QDPoint p1,
                              QDPoint p2,
                              float r1,
                              float r2)
Returns the two-dimensional point that lies on the line segment between the points p1 and p2 and that is at a distance from the first point determined by the ratio r1/(r1 + r2).

QuickDraw3D::Q3Point2D_RRatio

Parameters:
p2 - A two-dimensional point.
r1 - A floating-point number.
r2 - A floating-point number.
Returns:
a QDPoint
o add 
 public static QDPoint add(QDPoint point2D,
                           Vector2D v)
Returns the result of adding a two-dimensional vector to a two-dimensional point.

QuickDraw3D::Q3Point2D_Vector2D_Add

Parameters:
point2D - A two-dimensional point.
v - a two-dimensional vector
Returns:
a point that is the result of the add.
o subtract 
 public static QDPoint subtract(QDPoint point2D,
                                Vector2D v)
Returns the result of subtracting a two-dimensional vector from a two-dimensional point.

QuickDraw3D::Q3Point2D_Vector2D_Subtract

Parameters:
point2D - A two-dimensional point.
v - a two-dimensional vector
Returns:
a point that is the result of the add. 
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