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Question

Display GIS data on a Flow app

stu_home
Contributor
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Hi everyone.

I need to display an outline of GIS data on a basemap that runs in a Flow app. For example, an area shapefile. This is to display the area of operations, as a starting point when using the app, and the users will then select areas within that area to grab other data (addresses and statistics etc).

 



I’ve been working through this: Using the Geometry Parameter – FME Support Center to get a workspace built and published to Flow. But how do I ensure the outline of the area of operations is displayed from the very start?

I am a bit of a noob when it comes to Flow apps, so please do not worry about over-explaining anything: I need all the help I can get!

Many thanks in advance.

Stu

danilo_fme
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    danilo_fme

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j.botterill
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  • j.botterillInfluencer
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  • May 29, 2025

Unsure if this would work, but you could try setting the default for the Geometry user parameter, making it the GeoJSON of the area of operations.

You'll need to convert and capture the geojson perhaps using GeometryExtractor to the output _geometry attribute

hkingsbury
geomancer
stu_home
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    stu_home
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stu_home
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  • stu_homeContributor
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  • May 29, 2025
j.botterill wrote:

Unsure if this would work, but you could try setting the default for the Geometry user parameter, making it the GeoJSON of the area of operations.

You'll need to convert and capture the geojson perhaps using GeometryExtractor to the output _geometry attribute


THANK YOU!!!! You are absolutely correct, and this hit the nail on the head.

I created a GeoJSON file of the area, opened that with Notepad++, copied the contents and pasted it into the Default Value as suggested. Opened the app and there it is.

I have showed all my colleagues, and done a celebratory dance. Thank you again.

Stu
 

hkingsbury
j.botterill
liamfez
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