[转载]45度坐标系数据转换工具类

开源下自己写的一个45度坐标系数据转换工具类

 

 

/**
*45度坐标系数据转换工具类
* code wxsr 
*/
package com.engine.data.referenceFrame45
{
import flash.geom.Point;


public class Rectangle45 //implements IRectangle45
{

public static var ARI_MODE:Boolean=false
public static const anglex:Number=Math.asin(1/Math.sqrt(5))*(180/Math.PI)
private static const angley:Number=Math.asin(2/Math.sqrt(5))*(180/Math.PI)
public static const sideFirst:Point=new Point(1,1)
public static const sideSecond:Point=new Point(-1,1)
public static const sideThird:Point=new Point(-1,-1)
public static const sideFour:Point=new Point(1,-1)


/**
*角度转弧度 
* @param angle
* @return 
* 
*/	
public static function angleToradian(angle:Number):Number
{
return angle*180/Math.PI*angle;
}



/**
* 弧度转角度 
* @param radian
* @return 
* 
*/	
public static function radianToangle(radian:Number):Number
{
return radian*Math.PI/180*radian
}
/**
*获取x单位45度移动增量 
* @param targetPoint 目标坐标
* @param leftVertex 新开始点
* @param origin 原点
* @return 
* 
*/
public static function vx(targetPoint:Point, cell:CellGird45):Number
{

var pox:Number=(targetPoint.x+cell.leftVertex.x)/2 - (targetPoint.y-cell.leftVertex.y)-cell.origin.x;
return pox;
}
/**
* 获取y单位45度移动增量 
* @param targetPoint
* @param leftVertex
* @param origin
* @return 
* 
*/	
public static function vy(targetPoint:Point, cell:CellGird45):Number
{
var poy:Number=(targetPoint.x+cell.leftVertex.x)/2 + (targetPoint.y-cell.leftVertex.y)-cell.origin.x;
return poy;

}
/**
*获取直角坐标某点的x45度坐标 
* @param targetPoint
* @param newLeftVertex
* @return 
* 
*/	
public static function x45(targetPoint:Point, cell:CellGird45):Point
{
var poX:Number=vx(targetPoint,cell)
return new Point(cell.leftVertex.x+poX,cell.leftVertex.y-poX*.5)
}
/**
* 获取直角坐标某点的y45度坐标 
* @param targetPoint
* @param newLeftVertex
* @return 
* 
*/	
public static function y45(targetPoint:Point, cell:CellGird45):Point
{
var poY:Number=vy(targetPoint,cell)
return new Point(cell.leftVertex.x+poY,cell.leftVertex.y+poY*.5)
}
/**
*将直角坐标系的一点转换为45度坐标系 对应点
* @param targetPoint
* @param newLeftVertex
* @return 
* 
*/	
public static function xy45(targetPoint:Point, cell:CellGird45):Point
{	
var poX:Point=x45(targetPoint,cell)
var poY:Point=y45(targetPoint,cell)
var x:Number=poX.x+poY.x-cell.leftVertex.x;
var y:Number=poX.y+poY.y-cell.leftVertex.y;
return new Point(x,y)
}
/**
*获取棋盘整型坐标 
* @param point
* @return 
* 
*/	
public static function getIndex(point:Point,cell:CellGird45):Point
{

point==null?point=new Point:''
var pox:Number= Math.floor((point.x-cell.leftVertex.x)/cell.cellWidth - (point.y-cell.leftVertex.y)/cell.cellHeight);
var poy:Number=Math.floor((point.x-cell.leftVertex.x)/cell.cellWidth + (point.y-cell.leftVertex.y)/cell.cellHeight);
return new Point(pox,poy)

}
/**
*将45度坐标转换为直角坐标系 
* @param point
* @return 
* 
*/	
public static function local45ToGlobal(point:Point,cell:CellGird45):Point
{
var size:Number=cell.cellHeight;
var pox:Number=cell.leftVertex.x+size*(point.x+point.y);
var poy:Number=cell.leftVertex.y+size/2*(point.y-point.x);

return new Point(pox,poy)
}

;	
public static function symmetryChange(oldSide:Point,newSide:Point,camerPoint:Point,oblPoint:Point):Point
{


var dirX:int=newSide.x-oldSide.x
var dirY:int=newSide.y-oldSide.y
if(dirX!=0)
{
dirX>0?dirX=1:dirX=-1
}
if(dirY!=0)
{
dirY>0?dirY=1:dirY=-1
}
var disx:int=(oblPoint.x-camerPoint.x)*dirX;
var disy:int=(oblPoint.y-camerPoint.y)*dirY;
var newPoint:Point=new Point(oblPoint.x+disx*2,oblPoint.y+disy*2)

return newPoint
}
/**
* 
* @param point
* @param cell
* @param isReverse
* @return 
* 
*/	
public static function fitPoint(point:Point,cell:CellGird45,isReverse:Boolean=false):Point
{
var newPoint:Point
if(isReverse){

newPoint=local45ToGlobal(getIndex(point,cell),cell)
return getIndex(newPoint,cell)
}
newPoint=getIndex(point,cell)
return local45ToGlobal(newPoint,cell)
} 

/**
*平面90度旋转转换 
* @param camerPoint
* @param oldPoint
* @param cell
* @param dir
* @return 
* 
*/	
public static function rotationChange2(camerPoint:Point,oldPoint:Point,cell:CellGird45,dir:int=-1):Point
{
if(!Rectangle45.ARI_MODE)camerPoint=new Point;
//var radian:Array=[dir*Math.PI*.5,Math.PI,3*Math.PI/2,2*Math.PI]
var x:Number=oldPoint.x-camerPoint.x;
var y:Number=oldPoint.y-camerPoint.y
var radius:Number=Math.sqrt(x*x+y*y)	
var angle2:Number=Math.atan2(x,y)
var u:Number=Math.round(camerPoint.x+Math.sin(dir*Math.PI*.5+angle2) * radius);
var v:Number=Math.round(camerPoint.y+Math.cos(dir*Math.PI*.5+angle2) * radius)
var point:Point=new Point( u,v);
return point
}

}
}

 


/**
*45度坐标系
* 45度转换单位
* code wxsr 
*/
package com.engine.data.referenceFrame45
{
import flash.geom.Point;
import flash.net.registerClassAlias;

public class CellGird45
{

private var _anglex:Number=Math.asin(1/Math.sqrt(5))
private var _angley:Number=Math.asin(2/Math.sqrt(5))
private var _origin:Point;
private var _leftVertex:Point;
private var _topVertex:Point
private var _rightVertex:Point;
private var _bottonVertex:Point;
private var _midpoint:Point;
private var _cellSize:Number
private var _cellWidth:Number
private var _cellHeigth:Number;
private var _key:String;
private var _keyPoint:Point
private var _type:uint=1
private var _color:uint=0xffff00;
private var _lock:Boolean;
public var source:String;
//信息所属的元件id
public var imgKey:String

public function CellGird45(cellSize:Number=25,originPoint:Point=null)
{
registerClassAlias("com.save.cellGird45",CellGird45)
registerClassAlias("com.save.point",Point)
this.cellSize=cellSize
if(originPoint==null)
{
this.origin=new Point()
}else {
this.origin=originPoint;
}
}
/**
*	是否不可设置 
* @return 
* 
*/	
public function get lock():Boolean
{
return this._lock
} 
public function set lock(val:Boolean):void
{
this._lock=val
}
/**
*	类型 
* @return 
* 
*/	
public function get type():uint
{
return this._type
}
public function set type(val:uint):void
{
this._type=val
}
/**
*	颜色 
* @return 
* 
*/	
public function get color():uint
{
return this._color
}
public function set color(val:uint):void
{
this._color=val
}
/**
*	注册点 
* @param point
* 
*/	
public function set origin(point:Point):void
{

this._origin=point;
var x:Number=this._origin.x;
var y:Number=this._origin.y;
var size:Number=this._cellHeigth
size=24
this._leftVertex=new Point(x,y+size/2)
this._topVertex=new Point(x+size,y)
this._rightVertex=new Point(x+size*2,y+size/2)
this._bottonVertex=new Point(x+size,y+size)
this._midpoint=new Point(x+size,y+size/2)


}
/**
*	单元格大小 
* @param val
* 
*/	
public function set cellSize(val :Number):void
{
this._cellWidth=(val*this._angley*2);
this._cellHeigth=(this._cellWidth/2)
this._cellSize=val


}
/**
*	单元格宽度 
* @param val
* 
*/	
public function set cellWidth (val:Number):void
{
this._cellWidth=(val);
this._cellHeigth=val/2
this._cellSize=val/this._angley*.5

}
/**
*	单元格高度 
* @param val
* 
*/	
public function set cellHeight(val:Number):void
{
this._cellWidth=(val*2);
this._cellHeigth=val
this._cellSize=val/this._anglex*.5
}
/**
*	索引点
* @param point
* 
*/	
public function set keyPoint(point:Point):void
{
this._keyPoint=point;
this._key=point.x+','+point.y
}
public function get keyPoint():Point
{
return this._keyPoint;
}
/**
*	键值 
* @return 
* 
*/	
public function get key():String
{
return this._key;
}

public function get cellSize():Number
{
return this._cellSize
}	
public function get cellWidth():Number
{
return this._cellWidth
}
public function get cellHeight():Number
{
return this._cellHeigth
}
public function get origin():Point
{
return this._origin;
}
public function get leftVertex():Point
{
return this._leftVertex;
}
/**
*顶部的点 
* @return 
* 
*/	
public function get topVertex():Point
{
return this._topVertex;
}
/**
*右边的点 
* @return 
* 
*/	
public function get rightVertex():Point
{
return this._rightVertex;
}
/**
*	下方的点 
* @return 
* 
*/	
public function get bottonVertex():Point
{
return this._bottonVertex;
}
/**
*	中间的点位置 
* @return 
* 
*/	
public function get midpoint():Point
{
return this._midpoint;
}
}
}