JSON.encode(graphic:Graphic)

TomSchuller

Hy,
I'm trying to encode a graphic object into a json string.
I got translated the geometry but the symbology is ignored.

var myGraphimyGraphic.geometry = new MapPoint(70000,71000);
myGraphic.symbol = new SimpleMarkerSymbol("cross");
var jsonStr = JSON.encode(myGraphic);
trace(jsonStr);

The jsonStr variable has the value:
  {"geometry":{"x":70000,"y":71000}}

Why is the symbology ignored in the JSON.encode method?

Thanks,
Tom

TomSchuller

Robert,
I just completed my own JSON encoding.
It's trying to reusing the REST-JSON format of the AGS Server:
  http://<agsserver>:8399/arcgis/sdk/rest/symbol.html

Below you can find my code (textsymbol is incomplete).

Tom

            private function jsonEncodeGraphic(graphic:Graphic):String {
                var graObj:Object = new Object();
                graObj.geometry = graphic.geometry;
                graObj.symbol = encodeSymbol(graphic.symbol);
                return JSON.encode(graObj);
            }

            private function encodeColor(color:uint, alpha:Number = 1):Array {
                var colorArray:Array = new Array();
                var alphaRestValue:uint = alpha * 255;
                var hexRep:String = color.toString(16);
                if (hexRep.length == 6) {
                    colorArray.push(new uint("0x" + hexRep.substring(0, 2)));
                    colorArray.push(new uint("0x" + hexRep.substring(2, 4)));
                    colorArray.push(new uint("0x" + hexRep.substring(4, 6)));
                } else if (hexRep.length == 4) {
                    colorArray.push(new uint(0));
                    colorArray.push(new uint("0x" + hexRep.substring(0, 2)));
                    colorArray.push(new uint("0x" + hexRep.substring(2, 4)));
                } else if (hexRep.length == 2) {
                    colorArray.push(new uint(0));
                    colorArray.push(new uint(0));
                    colorArray.push(new uint("0x" + hexRep.substring(0, 2)));
                } else {
                    colorArray.push(new uint(0));
                    colorArray.push(new uint(0));
                    colorArray.push(new uint(0));
                }
                colorArray.push(alphaRestValue);
                return colorArray;
            }

            private function encodeSymbol(symbol:Symbol):Object {
                var symbolObj:Object = new Object();
                if (symbol is TextSymbol) {
                    var textSym:TextSymbol = symbol as TextSymbol;
                    //not yet finished
                    symbolObj.type = "esriTS";
                    symbolObj.angle = textSym.angle;
                    symbolObj.color = encodeColor(textSym.color, textSym.alpha);
                    if (textSym.background)
                        symbolObj.backgroundColor = encodeColor(textSym.backgroundColor);
                    if (textSym.border)
                        symbolObj.borderLineColor = encodeColor(textSym.borderColor);
                    symbolObj.xoffset = textSym.xoffset;
                    symbolObj.yoffset = textSym.yoffset;
                    symbolObj.text = textSym.text;
                    return symbolObj;
                } else if (symbol is SimpleMarkerSymbol) {
                    var markerSym:SimpleMarkerSymbol = symbol as SimpleMarkerSymbol;
                    symbolObj.type = "esriSMS";
                    symbolObj.style = symbolObj.type + markerSym.style.substring(0, 1).toUpperCase() + markerSym.style.substring(1);
                    symbolObj.color = encodeColor(markerSym.color, markerSym.alpha);
                    symbolObj.size = markerSym.size;
                    symbolObj.angle = markerSym.angle;
                    symbolObj.xOffset = markerSym.xoffset;
                    symbolObj.yOffset = markerSym.yoffset;
                    if (markerSym.outline) {
                        var outlineObj:Object = new Object();
                        outlineObj.color = encodeColor(markerSym.outline.color, markerSym.outline.alpha);
                        outlineObj.width = markerSym.outline.width;
                        outlineObj.style = markerSym.outline.style;
                        symbolObj.outline = outlineObj;
                    }
                    return symbolObj;
                } else if (symbol is SimpleLineSymbol) {
                    var lineSym:SimpleLineSymbol = symbol as SimpleLineSymbol;
                    symbolObj.type = "esriSLS";
                    symbolObj.style = symbolObj.type + lineSym.style.substring(0, 1).toUpperCase() + lineSym.style.substring(1);
                    symbolObj.color = encodeColor(lineSym.color, lineSym.alpha);
                    symbolObj.width = lineSym.width;
                    return symbolObj;
                } else if (symbol is SimpleFillSymbol) {
                    var fillSym:SimpleFillSymbol = symbol as SimpleFillSymbol;
                    symbolObj.type = "esriSFS";
                    symbolObj.style = symbolObj.type + fillSym.style.substring(0, 1).toUpperCase() + fillSym.style.substring(1);
                    symbolObj.color = encodeColor(fillSym.color, fillSym.alpha);
                    if (fillSym.outline)
                        symbolObj.outline = encodeSymbol(fillSym.outline);
                    return symbolObj;
                }
                Alert.show("Unknown SYMBOL type to convert to json: " + symbol);
                return null;
            }