com.klg.jclass.chart3d.j3d
Class MapPick

java.lang.Object
  |
  +--com.klg.jclass.chart3d.j3d.MapPick

All Implemented Interfaces:

Mapping

Direct Known Subclasses:

MapPickGrid, MapPickPoint

public class MapPick

extends Object

implements Mapping

A class that implements the Mapping interface. This computes the map and pick functions for the j3d version of Chart3d.

Field Summary

protected BranchGroup	branchGroup
protected Canvas3D	canvas3D
protected com.klg.jclass.chart3d.j3d.JCChart3dJava3d	chart3d
protected com.klg.jclass.chart3d.Chart3dData	data
protected com.klg.jclass.chart3d.Chart3dDataView	dataView
protected float	tolerance

Constructor Summary

MapPick()

MapPick(com.klg.jclass.chart3d.Chart3dData data)
Contructor with data.

MapPick(com.klg.jclass.chart3d.Chart3dData data, Canvas3D canvas3D, BranchGroup branchGroup)
Contructor with data, Canvas3D, and BranchGroup.

Method Summary

com.klg.jclass.chart3d.Mapping	createMapping(com.klg.jclass.chart3d.Chart3dData data) Create a new mapping, depending on the type of input data
com.klg.jclass.chart3d.Chart3dData	getData() Return the internal data object whose type determines the type of MapPick object required.
protected boolean	isWithinCanvas3DLimits(int xPixel, int yPixel)
Point3d	map(int xPixel, int yPixel) Dummy implementation.
com.klg.jclass.chart3d.JCData3dIndex	pick(int xPixel, int yPixel) Dummy implementation.
void	setBranchGroup(BranchGroup branchGroup) Sets the BranchGroup object required by PickCanvas.
void	setCanvas3D(Canvas3D canvas3D) Sets the Canvas3D object required by PickCanvas.
void	setTolerance(float tolerance)
Point	unmap(Point3d point) Performs an unmap operation by transforming the given data point to the position on the screen where it would be drawn.
Point	unpick(com.klg.jclass.chart3d.JCData3dIndex index) Dummy implementation.

Methods inherited from class java.lang.Object

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

Field Detail

tolerance

protected float tolerance

chart3d

protected com.klg.jclass.chart3d.j3d.JCChart3dJava3d chart3d

canvas3D

protected Canvas3D canvas3D

branchGroup

protected BranchGroup branchGroup

dataView

protected com.klg.jclass.chart3d.Chart3dDataView dataView

data

protected com.klg.jclass.chart3d.Chart3dData data

Constructor Detail

MapPick

public MapPick()

MapPick

public MapPick(com.klg.jclass.chart3d.Chart3dData data)

Contructor with data.

MapPick

public MapPick(com.klg.jclass.chart3d.Chart3dData data,
               Canvas3D canvas3D,
               BranchGroup branchGroup)

Contructor with data, Canvas3D, and BranchGroup.

Method Detail

setCanvas3D

public void setCanvas3D(Canvas3D canvas3D)

Sets the Canvas3D object required by PickCanvas.

isWithinCanvas3DLimits

protected boolean isWithinCanvas3DLimits(int xPixel,
                                         int yPixel)

setBranchGroup

public void setBranchGroup(BranchGroup branchGroup)

Sets the BranchGroup object required by PickCanvas.

map

public Point3d map(int xPixel,
                   int yPixel)

Dummy implementation. Meant to be overridden in MapPickGrid or MapPickPoint.

Specified by:

map in interface Mapping

Parameters:

xPixel - x value in screen pixels

yPixel - y value in screen pixels

Returns:

The data point that maps to the given screen point

unmap

public Point unmap(Point3d point)

Performs an unmap operation by transforming the given data point to the position on the screen where it would be drawn.

Specified by:

unmap in interface Mapping

Parameters:

point - The data point to be unmapped.

Returns:

The screen point to which the data point maps

pick

public com.klg.jclass.chart3d.JCData3dIndex pick(int xPixel,
                                                 int yPixel)

Dummy implementation. Meant to be overridden in MapPickGrid or MapPickPoint.

Specified by:

pick in interface Mapping

Parameters:

xPixel - x value in screen pixels

yPixel - y value in screen pixels

unpick

public Point unpick(com.klg.jclass.chart3d.JCData3dIndex index)

Dummy implementation. Meant to be overridden in MapPickGrid or MapPickPoint.

Specified by:

unpick in interface Mapping

Parameters:

index - The data index of the point whose screen point is required.

getData

public com.klg.jclass.chart3d.Chart3dData getData()

Return the internal data object whose type determines the type of MapPick object required.

Specified by:

getData in interface Mapping

createMapping

public com.klg.jclass.chart3d.Mapping createMapping(com.klg.jclass.chart3d.Chart3dData data)

Create a new mapping, depending on the type of input data

Specified by:

createMapping in interface Mapping

Parameters:

data - The data on which to base the creation

Returns:

The new mapping instance

setTolerance

public void setTolerance(float tolerance)