mraad / hex-grid

@Deprecated: Simple Scala based library to compute the row/column pair of a planar x/y value on a hexagonal grid.

Hex Grid

Simple scala based library to compute the row/column pair of a planar x/y value on a hexagonal grid.

Given a row/column pair, you can get back the x/y center of the hexagon at the specified row/column values.

The hexagon grid is defined by a uniform cell size and an origin.

• The cell size is the radius of the circle that overlaps the vertices of a hexagon in the grid.

• The origin is an optional definition that can be used to offset the input x/y values to produce positive row/column values.

Building the project

This project uses SBT to build the project, and is published as a Maven artifact that will reside in your local maven repo.

> sbt publish

Using Maven

> mvn install

Sample Usage

> scala -classpath hex-grid_2.10-1.0.jar

scala> import com.esri.hex._
import com.esri.hex._

scala> val hexGrid = HexGrid(100)
hexGrid: com.esri.hex.HexGrid = HexGrid(100.0,0.0,0.0)

scala> val rowcol = hexGrid.convertXYToRowCol(110,120)
rowcol: com.esri.hex.HexRowCol = HexRowCol(1,0)

scala> val encode = rowcol.toLong
encode: Long = 4294967296

scala> hexGrid.convertRowColToHexXY(rowcol)
res4: com.esri.hex.HexXY = Hex00()

scala> val xy = hexGrid.convertRowColToHexXY(rowcol)
xy: com.esri.hex.HexXY = Hex00()

scala> println(xy.x)
86.60254037844388

scala> println(xy.y)
150.0