Arcade area expressions form builder

Anonymous User — Sat, 14 May 2022 07:30:22 GMT

I want to configure a field in the form builder with arcade that calculates area using the expression area ($feature, 'hectares') or ($layer, 'hectares'). My layers are in British National Grid and the base map is the ESRI world imagery layer which is WGS84.

I know that my BNG layers will be re projected to WGS and I think %feature uses the base map co ordinate system/projection to calculate area.

I wondered if $layer would use the layer's defined co ordinate system/projection or the basemap co ordinate system/projection?

I also wondered if it would be possible to define the co ordinate system/projection for the area calculation in the expression?

Please and thank you.

Re: Arcade area expressions form builder

RobertBorchert — Mon, 16 May 2022 19:08:08 GMT

I think that is beyond the capabilities of the Form Builder.

It seems mostly restricted to Contingent Values

However, I do feel the ability to use calculations, like in Survey123, would be tremendous step forward for forms.

topic Arcade area expressions form builder in ArcGIS Field Maps Questions

Arcade area expressions form builder

Re: Arcade area expressions form builder