https://community.esri.com/t5/arcgis-survey123-questions/survey123-file-not-found-zone-lookup-js-error-auto/m-p/1634718#M63443 <P>Hi all,</P><P>I'm building a <STRONG>Survey123 form in Connect</STRONG> to collect habitat data. I want to <STRONG>automatically populate the "Reach Number" field</STRONG> based on the user's GPS location, using a polygon layer I’ve already created (each polygon represents a habitat reach zone).</P><P>Right now, I’m attempting to do this with a JavaScript file (zone_lookup.js) and the pulldata("@javascript") function. However, I’m getting the following error in the field app:</P><BLOCKQUOTE><P><STRONG>File not found: zone_lookup.js</STRONG></P></BLOCKQUOTE><P>Here’s what I’ve done so far:</P><UL><LI><P>I referenced the JS file in the XLSForm with pulldata("@javascript", "zone_lookup.js", "getZone", ${gps_location})</P></LI><LI>Here is JS&nbsp;</LI></UL><LI-CODE lang="c">function findZone(lat, lon, zones) { for (var i = 0; i &lt; zones.features.length; i++) { var zone = zones.features[i]; var coordinates = zone.geometry.coordinates[0]; if (pointInPolygon([lon, lat], coordinates)) { return zone.properties.reach_ID; // Adjust to your attribute } } return "Unknown"; } // Basic point-in-polygon function function pointInPolygon(point, vs) { var x = point[0], y = point[1]; var inside = false; for (var i = 0, j = vs.length - 1; i &lt; vs.length; j = i++) { var xi = vs[i][0], yi = vs[i][1]; var xj = vs[j][0], yj = vs[j][1]; var intersect = ((yi &gt; y) != (yj &gt; y)) &amp;&amp; (x &lt; (xj - xi) * (y - yi) / (yj - yi) + xi); if (intersect) inside = !inside; } return inside; } ​</LI-CODE><P>Before I dive deeper, I’m wondering:</P><OL><LI><P>What’s the proper way to structure the zone_lookup.js file to query a polygon feature based on location?</P></LI><LI><P>Is there a better approach to this (like using pulldata("@layer")) if I already have a hosted feature layer with the polygon zones?</P></LI><LI><P>Will either of these methods work <STRONG>offline</STRONG> in the field app?</P></LI></OL><P>Thanks for any help — and I’m happy to share my XLSForm if needed.</P> Mon, 21 Jul 2025 19:03:00 GMT IsabelleCroteau 2025-07-21T19:03:00Z https://community.esri.com/t5/arcgis-survey123-questions/survey123-file-not-found-zone-lookup-js-error-auto/m-p/1634718#M63443 <P>Hi all,</P><P>I'm building a <STRONG>Survey123 form in Connect</STRONG> to collect habitat data. I want to <STRONG>automatically populate the "Reach Number" field</STRONG> based on the user's GPS location, using a polygon layer I’ve already created (each polygon represents a habitat reach zone).</P><P>Right now, I’m attempting to do this with a JavaScript file (zone_lookup.js) and the pulldata("@javascript") function. However, I’m getting the following error in the field app:</P><BLOCKQUOTE><P><STRONG>File not found: zone_lookup.js</STRONG></P></BLOCKQUOTE><P>Here’s what I’ve done so far:</P><UL><LI><P>I referenced the JS file in the XLSForm with pulldata("@javascript", "zone_lookup.js", "getZone", ${gps_location})</P></LI><LI>Here is JS&nbsp;</LI></UL><LI-CODE lang="c">function findZone(lat, lon, zones) { for (var i = 0; i &lt; zones.features.length; i++) { var zone = zones.features[i]; var coordinates = zone.geometry.coordinates[0]; if (pointInPolygon([lon, lat], coordinates)) { return zone.properties.reach_ID; // Adjust to your attribute } } return "Unknown"; } // Basic point-in-polygon function function pointInPolygon(point, vs) { var x = point[0], y = point[1]; var inside = false; for (var i = 0, j = vs.length - 1; i &lt; vs.length; j = i++) { var xi = vs[i][0], yi = vs[i][1]; var xj = vs[j][0], yj = vs[j][1]; var intersect = ((yi &gt; y) != (yj &gt; y)) &amp;&amp; (x &lt; (xj - xi) * (y - yi) / (yj - yi) + xi); if (intersect) inside = !inside; } return inside; } ​</LI-CODE><P>Before I dive deeper, I’m wondering:</P><OL><LI><P>What’s the proper way to structure the zone_lookup.js file to query a polygon feature based on location?</P></LI><LI><P>Is there a better approach to this (like using pulldata("@layer")) if I already have a hosted feature layer with the polygon zones?</P></LI><LI><P>Will either of these methods work <STRONG>offline</STRONG> in the field app?</P></LI></OL><P>Thanks for any help — and I’m happy to share my XLSForm if needed.</P> Mon, 21 Jul 2025 19:03:00 GMT https://community.esri.com/t5/arcgis-survey123-questions/survey123-file-not-found-zone-lookup-js-error-auto/m-p/1634718#M63443 IsabelleCroteau 2025-07-21T19:03:00Z https://community.esri.com/t5/arcgis-survey123-questions/survey123-file-not-found-zone-lookup-js-error-auto/m-p/1634944#M63449 <P>the pulldata (@layer)&nbsp; point in polygon usage might fit better however it is only going to work online.</P><P><A href="https://community.esri.com/t5/arcgis-survey123-blog/survey123-tricks-of-the-trade-pulldata-quot-layer/ba-p/1224415" target="_blank">https://community.esri.com/t5/arcgis-survey123-blog/survey123-tricks-of-the-trade-pulldata-quot-layer/ba-p/1224415</A></P><P>There doesn't&nbsp; currently appear to be a way to pull data from an offline source.&nbsp; This was an interesting take:&nbsp;</P><P><A href="https://community.esri.com/t5/arcgis-survey123-questions/any-similar-function-to-pulldata-to-work-with-mmpk/td-p/1306835" target="_blank">https://community.esri.com/t5/arcgis-survey123-questions/any-similar-function-to-pulldata-to-work-with-mmpk/td-p/1306835</A></P><P>Another thought would be, could you handle the zone field in post processing? Like write a python script to programmatically fill the zone field after submission based on the point coordinates collected in the survey.&nbsp;</P><P>&nbsp;</P> Tue, 22 Jul 2025 13:41:55 GMT https://community.esri.com/t5/arcgis-survey123-questions/survey123-file-not-found-zone-lookup-js-error-auto/m-p/1634944#M63449 Neal_t_k 2025-07-22T13:41:55Z