Extract XY of Polygon Vertices and Write to Variable

Permanently deleted user

17. August 2017 12:32

I am trying to extract the XY values of a polygon and write each unique XY pair to separate variables that can be used to create to pass a URL call to an API.

 

I've figured out how to capture and display the coordinates, but I am having trouble extracting each pair and writing them unique variables.

 

Here's where I am at:

 

1. Use CaptureGeometry to allow user to capture either a Rectangle, Polygon or Map Extent

 

2. Take geometry of polygon and create a graphic for peach point based on Point.X, Point.Y and add them to a Feature Set

 

3. I have an alert that shows all the XY pairs for feature set like this using FeatureSet.ToJSon():

 

 

Not really sure where to go from here to extract each XY pair as unique variable.

 

Thanks,

 

Mark

 

GE 4.8.1

 

HTML5 2.9

 

 

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  Permanently deleted user

  17. August 2017 19:18

  To take it one step further, I am trying to convert my JSON to a Dictionary, but neither "features", "attributes" or "geometry" are valid keys. Am I missing something?

   

  Here's my JSON text I am tyring to extract:

   

  {"geometryType":"esriGeometryPoint","hasZ":false,"hasM":false,"features":[{"geometry":{"x":-93.96546396017159,"y":42.2010316676822},"attributes":{"LONG":"-93.9654639601716","LAT":"42.2010316676822"}},{"geometry":{"x":-94.514780367067075,"y":42.2010316676822},"attributes":{"LONG":"-94.5147803670671","LAT":"42.2010316676822"}},{"geometry":{"x":-94.514780367067075,"y":42.5985635435968},"attributes":{"LONG":"-94.5147803670671","LAT":"42.5985635435968"}},{"geometry":{"x":-93.96546396017159,"y":42.5985635435968},"attributes":{"LONG":"-93.9654639601716","LAT":"42.5985635435968"}},{"geometry":{"x":-93.96546396017159,"y":42.2010316676822},"attributes":{"LONG":"-93.9654639601716","LAT":"42.2010316676822"}}]}

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  Permanently deleted user

  17. August 2017 22:18

  Got it. We were making it way too difficult. I took my FeatureSet and used 'GetAttributeValues" activity and extracted each attribute into its own iList. From there, we made them their own variable using: string.Join("|",listLONG2)

   

  To take the this:

   

  _img_ alt="User-added image" src="https://latitudegeo--c.na53.content.force.com/servlet/rtaImage?eid=907f20000000SWb&feoid=Body&refid=0EMf2000000E46k" _/_img_

   

  to here:

   

  _img_ alt="User-added image" src="https://latitudegeo--c.na53.content.force.com/servlet/rtaImage?eid=907f20000000SWb&feoid=Body&refid=0EMf2000000E46p" _/_img_

   

   

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  Permanently deleted user

  18. August 2017 13:59

  Another option, convert you geometry to a polygon (since that is all you are allowing your user to and iterate through the rings

   

  Then you can do what you want with the x,y coords of each point

   

  _img_ alt="User-added image" src="https://latitudegeo--c.na53.content.force.com/servlet/rtaImage?eid=907f20000000SXZ&feoid=Body&refid=0EMf2000000E479"_/_img_

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