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Eduardo Ferreira
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[OutSystems Maps] how to load markers by proximity to the center defined on the map
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OutSystems Maps (O11)
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Good Afternoon,

I'm developing a mobile app and I use outsystems maps (google maps) to list a series of markers (about 1000 for now). Therefore, when I initially load all the markers at once to the home screen, I get a timeout message. 

How can I first list only a few markers closest to the defined center, and as the zoom changes, load more markers? 

Best regards,

 Eduardo Ferreira 

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05 May 2025
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2022-11-12 11-28-30
Gonçalo Martins
Staff

Hi @Eduardo Ferreira,

To deal with a large amount of markers like the one you estimate to be the minimum, the only way I could suggest would be using the client actions - AddMarker / RemoveMarker / RemoveAllMarkers - that were created exactly for that use case, so you don't get some limitations from using OS blocks and use the Google Maps APIs directly.
I made a test in the past with markers 10000, and it worked well without timeouts.
Hope it helps!

Cheers,
GM


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05 May 2025
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Eduardo Ferreira

Thanks Gonçalo, it works now. Now the problem is that I can no longer use the Marker popUp. Is there any alternative or solution for this?

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07 Nov 2025
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