Draw line using esri.Geometry.Polyline

Question

Hello all, I'm trying to draw a line by entering and in text boxes. Please find below the code - Lat/Lon longitude1 latitude1 longitude2 latitude2

I see the points, but I don't see the line. Any help would be appreciated, thanks! Ram

khutchins · Accepted Answer

Hi Ram,

If you take a look at the API reference for the Polyline class constructor you'll see that it accepts either a spatial reference or a json object that defines the polyline. In your code you are entering the start and end point too which it doesn't understand. Try revising your code to something like this: 
      var point1 = new esri.geometry.Point(lon1, lat1, map.spatialReference);       var point2 = new esri.geometry.Point(lon2, lat2, map.spatialReference);       var line = new esri.geometry.Polyline(map.spatialReference);       line.addPath([point1, point2]);       var lineSymbol = new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([255,0,0,0.5]),3);       var pointSymbol = new esri.symbol.SimpleMarkerSymbol().setColor(new dojo.Color([255,0,0, 0.5]));       map.graphics.add(new esri.Graphic(point1, pointSymbol));       map.graphics.add(new esri.Graphic(point2, pointSymbol));       map.graphics.add(new esri.Graphic(line, lineSymbol))