com.partnersoft.v3x.geometry.single
Class Grid

java.lang.Object
  com.partnersoft.v3x.geometry.single.Grid

public class Grid
extends java.lang.Object

A square grid in space, defined as an origin and rectangular cell size. Coordinates are stored as two UInt16s stored in a single UInt32. x

Field Summary

float	cellHeight
float	cellWidth
float	originX
float	originY

Constructor Summary

Grid()

Grid(float originX, float originY, float cellSize)

Grid(float originX, float originY, float cellWidth, float cellHeight)

Method Summary

float	cellToX(int cellX)
float	cellToY(int cellY)
java.util.Map	chop(FloatBuffer coords) Chops up a Polyline into multiple cells.
static int	packGridCoordinate(int x, int y) Converts a grid coordinate (x, y) into a single int.
static int[]	unpackGridCoordinate(int packedCoord) Unpacks a grid coordinate into an int array.
int	xToCell(float x)
int	yToCell(float y)

Methods inherited from class java.lang.Object

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

Field Detail

originX

public float originX

originY

public float originY

cellWidth

public float cellWidth

cellHeight

public float cellHeight

Constructor Detail

Grid

public Grid()

Grid

public Grid(float originX,
            float originY,
            float cellSize)

Grid

public Grid(float originX,
            float originY,
            float cellWidth,
            float cellHeight)

Method Detail

packGridCoordinate

public static final int packGridCoordinate(int x,
                                           int y)

Converts a grid coordinate (x, y) into a single int. The first short is x and the second is y. All numbers are unsigned.

unpackGridCoordinate

public static final int[] unpackGridCoordinate(int packedCoord)

Unpacks a grid coordinate into an int array. Order is x, y.

xToCell

public final int xToCell(float x)

yToCell

public final int yToCell(float y)

cellToX

public final float cellToX(int cellX)

cellToY

public final float cellToY(int cellY)

chop

public java.util.Map chop(FloatBuffer coords)

Chops up a Polyline into multiple cells. Returns a Map containing the results; key is the GridCoordinate and the value is a PolylineArray with one or more polylines.