Bo, Sure it is constrained to one function /*
* Function That takes all the graphics in a defined GraphicsLayer and adds unions them into one geometry
* @param GraphicsLayer gl is the graphics layer to union
* @return Geometry of the unioned graphics
*/
private function unionGeoms2(gl:GraphicsLayer):Geometry
{
var retGeom:Geometry;
var mPoint:Multipoint = new Multipoint(null);
mPoint.spatialReference = map.spatialReference;
var mPoly:Polygon = new Polygon(null);
mPoly.spatialReference = map.spatialReference;
var mPolyL:Polyline = new Polyline(null);
mPolyL.spatialReference = map.spatialReference;
var rType:String;
//globals
var poly:Polygon;
var ext:Extent;
var i:int;
var j:int;
var mp:MapPoint;
var ringArray:Array;
for each (var graphic:Graphic in gl.graphicProvider){
if(graphic.geometry.type == "esriGeometryPoint" && !addTolerance.selected){
mPoint.addPoint(graphic.geometry as MapPoint);
rType = "point";
}else if (graphic.geometry.type == "esriGeometryPoint" && addTolerance.selected){
ext = createExtentAroundMapPoint(graphic.geometry as MapPoint, pointSearchTolerance) as Extent;
poly = ext.toPolygon();
for (i = poly.rings.length - 1; i >= 0; i--){
ringArray = [];
for (j = 0; j < poly.rings.length; j++){
mp = poly.getPoint(i,j) as MapPoint;
mp.spatialReference = poly.spatialReference;
ringArray.push(mp);
}
mPoly.addRing(ringArray);
}
rType = "poly";
mPoly.spatialReference = poly.spatialReference;
}
if(graphic.geometry.type == "esriGeometryMultipoint"){
var mp1:Multipoint = graphic.geometry as Multipoint
var pnts:MapPoint;
for (var p:int=0;p < mp1.points.length; p++){
mPoint.addPoint(mp1.points
);
}
rType = "point";
}
if(graphic.geometry.type == "esriGeometryPolygon"){
poly = graphic.geometry as Polygon;
for (i = poly.rings.length - 1; i >= 0; i--){
ringArray = [];
for (j = 0; j < poly.rings.length; j++){
mp = poly.getPoint(i,j) as MapPoint;
mp.spatialReference = poly.spatialReference;
ringArray.push(mp);
}
mPoly.addRing(ringArray);
}
rType = "poly";
mPoly.spatialReference = poly.spatialReference;
}
if(graphic.geometry.type == "esriGeometryPolyline"){
var polyl:Polyline = graphic.geometry as Polyline;
for(var l:int=polyl.paths.length-1; l >= 0; l--){
var pathArray:Array = [];
for (j = 0; j < polyl.paths.length; j++){
mp = polyl.getPoint(l,j) as MapPoint;
mp.spatialReference = polyl.spatialReference;
pathArray.push(mp);
}
mPolyL.addPath(pathArray);
}
rType = "line";
}
if(graphic.geometry.type == "esriGeometryEnvelope"){
ext = graphic.geometry as Extent;
poly = ext.toPolygon();
for (i = poly.rings.length - 1; i >= 0; i--){
ringArray = [];
for (j = 0; j < poly.rings.length; j++){
mp = poly.getPoint(i,j) as MapPoint;
mp.spatialReference = poly.spatialReference;
ringArray.push(mp);
}
mPoly.addRing(ringArray);
}
rType = "poly";
mPoly.spatialReference = poly.spatialReference;
}
}
switch(rType){
case "point":{
retGeom = mPoint;
break;
}
case "poly":{
retGeom = mPoly;
break;
}
case "line":{
retGeom = mPolyL;
break;
}
}
return retGeom;
}
