Query Layer activity for multipoint

Permanently deleted user

August 24, 2018 12:53

Hi,

Could you help me with adding multipoint to the Query Layer activity?

I use these activities:

1.Geometry Picker for more points

2.Project Geometry from Geometry Picker

3.Query Layer with the geometry from Project Geometry - but here is always only the first point from my points.

 

Should I rewrite the geometry from the all points to json and then use Get Geometry From JSON and then pass it to Query Layer?

 

Thanks,

Jana

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  Stefan Schweigert

  August 27, 2018 17:30

  Hi Marek,

   

  That is a good suggestion. The other option, though not as clean, would be to run multiple query layers and combine the results.

   

  Thanks, Stefan

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  Erik Kuipers

  August 28, 2018 13:27

  Perhaps you can use:

  Union Geometries Activity

   

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  Permanently deleted user

  August 29, 2018 12:54

  I tried to feed Query Layer with geometry from json made from picked points but it didn't work (file is attached). Interesting that it works when I write point coordinates directly to Get Geometry From JSON:

  ={

   points:[  [-757608,-975473], [-761043,-975192]

   ],

  spatialReference:{wkid:102067}

   }

   

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  Permanently deleted user

  September 10, 2018 21:18

  Hi Marek,

   

  I looked at the workflow you attached, and I think it might be an issue on the Get Geometry From JSON activity. This activity accepts either a json object or a string as an input, but the value it was provided with was a mix; the structure was a json object, but the $json_multipoint value inside it is a string.

   

  I tried changing the input for the activity to a string expression instead, and it seems to work correctly:

  =`{"points": [${$json_multipoint.result}], "spatialReference":{"wkid":102067}}`

  (if you're not familiar with the template literal format for writing string expressions, check out https://docs.geocortex.com/workflow/latest/help/Default.htm#wf5/help/expressions.htm#Use_String_Expressions%3FTocPath%3DExpressions%7C_____2)

   

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  Permanently deleted user

  September 12, 2018 07:55

  Thanks for your advice, it works.

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