Saving points while drawing a polygon

Question

I downloaded the sample cod: Add graphics to a map
http://help.arcgis.com/en/webapi/javascript/arcgis/jssamples/graphics_add.html

I want to save the points (lat and lon)  of a polygon as its being drawn or at "ondrawend"   and get a list of all the points.
Not a free style line drawing,  just a straight line polygon.

In the function addGraphic (geometry)   is there   a way to do this

var points[] =  geometry.getPoints();

I need to save the points to a jsonstore.

Thank You

jskinner · Answer

If your map's spatial reference is Web Mercator or Geographic, you can use the geographicGeometry property of the onDrawComplete event.  This will return the XY coordinates in lat/long.console.log(geometry.geographicGeometry.rings);

When creating a triangle you should get 4 points.  The 4th point will be a duplicate of the first point.  When you digitizing, double-click the 3rd point and the triangle will auto-complete.  If you are trying to close the triangle yourself by double-clicking on the 4th point, it will create a 5th point unless you are exactly clicking on the starting point.

RichardDeVita · Answer

Thank You.  This is a start.

ran this
 console.log(geometry.rings);

got this
[[[-13459684.212552793, 4676535.610062524], [-13453282.61143392, 4673535.456702335], [-13459588.666267438, 4670917.488483570], 2 more...]

how do I convert these numbers to latitude and longitude ?

Also I drew a triangle,  but I get 5 points ?

Thank You for the help

jskinner · Answer

Hi Richard,

You could use the onDrawComplete event to do this.  Ex:dojo.connect(tb, "onDrawComplete", function(geometry){
            console.log(geometry.geometry.rings);
            });