Forum

Author Topic: NAD83(2011) Transverse Mercator  (Read 187 times)

gdw

  • Newbie
  • *
  • Posts: 3
    • View Profile
NAD83(2011) Transverse Mercator
« on: January 10, 2023, 06:42:32 PM »
When I export an orthomosaic to NAD 1983 (2011) State Plane Alabama East ftUS from Metashape 1.8 or 2.0, the results are "incorrectly" exported in Universal Transverse Mercator.     
Alabama uses the Transverse Mercator projection.

When I export an orthomosaic to NAD 1983 (2011) State Plane Tennessee ftUS from Metashape 1.8 or 2.0, the results are "correctly" exported in NAD 1983 (2011) State Plane Tennessee ftUS. 
Tennessee uses the Lambert Conformal Conic projection.

Many State Plane systems use the Transverse Mercator Projection.  When Metashape exports a Transverse Mercator Projection to NAD 1983 (2011) it does not convert correctly.

Alexey Pasumansky

  • Agisoft Technical Support
  • Hero Member
  • *****
  • Posts: 14099
    • View Profile
Re: NAD83(2011) Transverse Mercator
« Reply #1 on: January 12, 2023, 03:48:27 PM »
Hello gdw,

Can you please specify which application or utility you are using to check the projection of the exported raster?

I have tried to export the orthomosaic in AD 1983 (2011) State Plane Alabama East ftUS  coordinate system and several utilities, including listgeo show CT_TransverseMercator in ProjCoordTransGeoKey tag, which seems to be correct.
Best regards,
Alexey Pasumansky,
Agisoft LLC

gdw

  • Newbie
  • *
  • Posts: 3
    • View Profile
Re: NAD83(2011) Transverse Mercator
« Reply #2 on: January 20, 2023, 11:07:52 PM »
Alexey:
Thank you for your prompt reply.

I use ArcMap and ArcGIS Pro.

George