Shapefile Loads at 0,0 without .prj file

Shape File Loads at 0,0 without .prj file

Robert,
Is it only also “advisable” to include the .prj file or is it necessary? I have a plume modeling program that pushes out the attached files in zip format. [IWMDT_shpOutput.zip] It loads with no errors but at 0,0 - this is probably because there is no projection file. (I added projection and everything works great.)

My concern is my customers have been using an adapted Flex Viewer Version 1.0 [Build: 06.12.09]. In this application I was using the original widget called “ShpOverlay” that I have attached as well. Using these same files (without .prj files), the ShpOverlay widget works fine. See attached plume sceen capture.

Is this new generation of the same widget (Version 3.3.1) handling the shapefiles differently? Or am I doing something wrong.

This is my environment:
. Shapefiles Widget Version 3.3.1 - July 2, 2013
. ArcGIS 10 Server Advanced Enterprise SP5 (10.05)
. ArcGIS Viewer 3.3 for Flex (Source code) [arcgis-viewer-flex-3.3-src.zip]
. ArcGIS API 3.3 for Flex [arcgis_api_for_flex_3_3.zip]
. Flash Builder 4.6 [FlashBuilder_4_6_LS10.exe]
. Flex SDK 4.6 [flex_sdk_4.6.zip]

Attached Thumbnails

 

Attached Files

• IWMDT_shpOutput.zip‎ (12.0 KB)
• ShpOverlay.zip‎ (3.1 KB)