topic Re: Joining Multiple Polylines in ArcGIS JavaScript Maps SDK Questions

Joining Multiple Polylines

MichaelLove — Thu, 20 Jan 2011 00:50:55 GMT

I'm using the esri google maps extension api...

I have a esri.arcgis.gmaps.FeatureSet() (of type esriPolyline) containing an array of features (esri.arcgis.gmaps.Feature()).

Is there a simple way to create a single GPolyline from the array of features?

or, since feature.geometry is a GPolyline, I guess I am asking is there a simple way to create a single GPolyline by joining/merging multiple GPolylines?

FYI - I also asked this question here

Re: Joining Multiple Polylines

HemingZhu — Thu, 20 Jan 2011 16:55:02 GMT

I'm using the esri google maps extension api...

I have a esri.arcgis.gmaps.FeatureSet() (of type esriPolyline) containing an array of features (esri.arcgis.gmaps.Feature()).

Is there a simple way to create a single GPolyline from the array of features?

or, since feature.geometry is a GPolyline, I guess I am asking is there a simple way to create a single GPolyline by joining/merging multiple GPolylines?

FYI - I also asked this question here

There are a couple of ways to achieve this. 1. using geometry service's union(geometries, callback?, errback?) method. 2. using Polyline's addPath(points or path or pointJson) method.

Re: Joining Multiple Polylines

MichaelLove — Fri, 21 Jan 2011 01:01:07 GMT

Hi Heming,

thanks for the prompt reply.

There are a couple of ways to achieve this. 1. using geometry service's union(geometries, callback?, errback?) method. 2. using Polyline's addPath(points or path or pointJson) method.

With regards to your responses...

1. I had a look at the Geometry service rest api page (/arcgis/rest/services/Geometry/GeometryServer), I don't appear to have a "Union" function available, only "Project", "Simplify", "Buffer", "Areas And Lengths", "Lengths"

2. I'm using the arcgis Google Maps api, the esri.geometry.Polyline.addPath method (or class) is not available in the .js library (http://serverapi.arcgisonline.com/jsapi/gmaps/?v=1.6). Also, the arcgis js library uses the V2 google maps api (now deprecated)), so the google maps V3 methods are not available either.

thanks again for the assistance,

cheers,

Michael