visad.bom.annotations
Class PointJ3D

java.lang.Object
  visad.bom.annotations.PointJ3D

All Implemented Interfaces:

ScreenAnnotation

public class PointJ3D
extends Object
implements ScreenAnnotation

Meant to encapsulate information representing a Point which is going to be rendered on a VisAD display without being subject to the usual VisAD transformations. Thus the label should stick in Screen Coordinates.

Constructor Summary

PointJ3D()
Simple constructor which makes a point at (0, 0) coloured white.

PointJ3D(int[][] points, float[] colour, double zValue, double thickness)
Constructs a PointJ3D from specified values in screen coordinates.

PointJ3D(int x1, int y1, float[] colour, double zValue, double thickness)
Constructs a PointJ3D from specified values in screen coordinates.

Method Summary

void	setColour(float[] colour) Set colour for the PointJ3D.
void	setPointJ3Ds(int[][] points) Set coordinates for the PointJ3D.
void	setPointJ3Ds(int x1, int y1) Set coordinates for the PointJ3D.
void	setZValue(double zValue) Set Z position for the PointJ3D.
Object	toDrawable(DisplayImpl display) Make the PointJ3D into a Shape3D.

Methods inherited from class java.lang.Object

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

Constructor Detail

PointJ3D

public PointJ3D()

Simple constructor which makes a point at (0, 0) coloured white. More meaningful values can be set after construction.

PointJ3D

public PointJ3D(int x1,
                int y1,
                float[] colour,
                double zValue,
                double thickness)

Constructs a PointJ3D from specified values in screen coordinates.

Parameters:

x1 - x screen coordinate of the point.

y1 - y screen coordinate of the point.

colour - red green blue triple; each value in [0.0, 1.0].

zValue - Virtual world value; larger z is in front.

thickness - used for the size of the point.

PointJ3D

public PointJ3D(int[][] points,
                float[] colour,
                double zValue,
                double thickness)

Constructs a PointJ3D from specified values in screen coordinates.

Parameters:

points - 2 rows with each column containing a point in screen coordinates; requires 1 point (column).

colour - red green blue triple; each value in [0.0, 1.0].

zValue - Virtual world value; larger z is in front.

thickness - used for the size of the point.

Method Detail

setPointJ3Ds

public void setPointJ3Ds(int x1,
                         int y1)

Set coordinates for the PointJ3D.

Parameters:

x1 - x screen coordinate of the point.

y1 - y screen coordinate of the point.

setPointJ3Ds

public void setPointJ3Ds(int[][] points)

Set coordinates for the PointJ3D.

Parameters:

points - 2 rows with each column containing a point in screen coordinates; requires 1 point (column).

setColour

public void setColour(float[] colour)

Set colour for the PointJ3D.

Parameters:

colour - red green blue triple; each value in [0.0, 1.0].

setZValue

public void setZValue(double zValue)

Set Z position for the PointJ3D.

Parameters:

zValue - Virtual world value; larger z is in front.

toDrawable

public Object toDrawable(DisplayImpl display)

Make the PointJ3D into a Shape3D.

Specified by:

toDrawable in interface ScreenAnnotation

Parameters:

display - the VisAD display for this Point.

Returns:

the Triangle description as a Shape3D object.