操作：locateFacility のソースリスト public static function locateFacility(argObj:Object): SG_Point { gittok では Object の連想配列列で引数を与える．
// facility location applying weighted mean
var attValues:ArrayList = argObj["surfaces"] as ArrayList;
var surfaces:ArrayList = new ArrayList();
var m:int = attValues.length;
for (var i:int = 0; i < m; i++) {
var attList:ArrayList = attValues.getItemAt(i) as ArrayList;
surfaces.addAll(attList);
住宅宅の形状のリスト
}
attValues
= argObj["stories"]
as ArrayList;
var stories:ArrayList = new ArrayList();
m = attValues.length;
for (i = 0; i < m; i++) {
attList = attValues.getItemAt(i) as ArrayList;
stories.addItem(attList.getItemAt(0) as Integer); 住宅宅の階数のリスト
}
m = surfaces.length; ⾯面（住宅宅）の数
var sumNumeratorX:Number
= 0;
var sumNumeratorY:Number
= 0;
var sumDenominator:Number = 0;
for (i = 0; i < m; i++) {
var s:SG_Surface = surfaces.getItemAt(i) as SG_Surface;
var exterior:SG_Ring = s.exterior;
var polygon:CoordinateArray = exterior.coordinateSequence();
// storey (story in Am) is defined as a level of building.
var storey:Integer = stories.getItemAt(i) as Integer;
var area:Number
= math.Area.getSimpleArea(polygon) * storey.value;
外周の⾯面積に階数を掛けて，総床⾯面積を求める．
var weight:Number = area;
var weight2:Number = weight * weight; 住宅宅の総床⾯面積の⼆二乗が重みになる．
attList = new ArrayList();
attList.addItem(surfaces.getItemAt(i));
attValues = new ArrayList();
attValues.addItem(attList);
argObj = new Object();
argObj["surface"] = attValues;
var sPos:SG_Point = centerOfMIC(argObj);
住宅宅の外周の最⼤大内接円中⼼心を求める．
sumNumeratorX += weight2 * sPos.position.x; 重み付きの総和（x 座標）
sumNumeratorY += weight2 * sPos.position.y; 重み付きの総和（y 座標）
sumDenominator += weight2; 重みの総和（分⺟母）
}
var cPos:SG_Point = new SG_Point();
cPos.position.x = sumNumeratorX / sumDenominator; 重み付き平均（x 座標）
cPos.position.y = sumNumeratorY / sumDenominator; 重み付き平均（y 座標）
return cPos; 戻り値（コンビニの位置）
}