Distance between 2 Points

Question

Quite simply, if I have two MapPoints how would I measure the distance between them?

I tried to create a polyline using these points and then call the lengths method on geometry service but the results array is allways empty.

TonyCollins · Answer

Firstly sorry to have wasted your time Robert, but at least this might help someone on 9.3.1 if there are any left!

It looks like my issue was that I was not giving the polyLine a spatialReference (although I'm sure I already tried that).

NOTE: I'm not using any map

TonyCollins · Answer

Hmm... hold up it now looks like I have a result...
Will post back after a little more debugging!

TonyCollins · Answer

Tony,

What does your code for building the polyline look like?

Thanks for your help Robert!

I have tried creating the polyline many ways and most seem to create one, but here is what I currently have:

var schoolMapPoint:MapPoint = findResult.feature.geometry as MapPoint;  
var addressMapPoint:MapPoint = parentApplication.addressMapPoint;
var mapPoints:Array = [schoolMapPoint,addressMapPoint];
var polyLine:Polyline = new Polyline([mapPoints]);
..
..
lengthsParameters.polylines = [polyLine]; 
geometryService.lengths(lengthsParameters);

RhettZufelt_0-1726686076762.png