Buffer problem

RyanSmith1 — Mon, 30 Jun 2014 09:55:24 GMT

Hi, i have the following piece of code to perform a buffer operation after an onclick event on a button component, but for some reason the Buffer only gets produced after the second click.

 function doBuffer(geometryToBuffer)
{
  var params = new esri.tasks.BufferParameters();
  params.geometries = [geometryToBuffer];
  params.distances = [5,15];
  params.unit = esri.tasks.GeometryService.UNIT_KILOMETER;
  params.outSpatialReference = map.spatialReference;

  gsvc.buffer(params, showBuffer);
}

   function showBuffer(geometries) 
   {
        var symbol = new esri.symbol.SimpleFillSymbol(
          esri.symbol.SimpleFillSymbol.STYLE_SOLID,
          new esri.symbol.SimpleLineSymbol(
            esri.symbol.SimpleLineSymbol.STYLE_SOLID,
            new dojo.Color([0, 0, 255, 0.65]), 2
          ),
          new dojo.Color([0, 0, 255, 0.35])
        );

        dojo.forEach(geometries, function (geometry) {
            var graphic = new esri.Graphic(geometry, symbol);
            map.graphics.add(graphic);
        });
    }

Re: Buffer problem

AlexeiB — Mon, 30 Jun 2014 22:07:14 GMT

Does the doBuffer(..) function get called on the first click?

Re: Buffer problem

RyanSmith1 — Tue, 01 Jul 2014 06:38:03 GMT

Does the doBuffer(..) function get called on the first click?

Thanks for the reply Alex, Yes it does get called on the first click

Re: Buffer problem

JeffPace — Tue, 01 Jul 2014 11:49:16 GMT

on first click, is geometryToBuffer valid or is it null

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