https://community.esri.com/t5/arcgis-drone2map-ideas/simplify-or-filter-on-history-and-or-location/idi-p/1619560 <P>I did a small test on a set of images close to Oslo/Norway.&nbsp;</P><UL><LI>Image CRS: WGS84/EGM96</LI><LI>Project CRS: ETRS1989 UTM Zone 32N/NN2000&nbsp;</LI></UL><P>When setting up the "Coordinate System Transformation" user is presented with a list of (not less than) 50+ possible transformation paths(!).&nbsp; The list includes</P><UL><LI>"abandoned" CRS's like CRS's based on NGO1948, European1950 etc</LI><LI>non-Norwegian CRS's like Swedish, Finnish and Estonian&nbsp;</LI><LI>and of course comboes of the above (for example abandoned Swedish RT90)</LI></UL><P>As EPSG database will continue to grow, an idea could be to implement a filter for possible CRS's hence transformation paths? Like a spatial filter and possibly a "historical" filter?</P> Fri, 30 May 2025 10:17:46 GMT Pål_Herman_Sund 2025-05-30T10:17:46Z https://community.esri.com/t5/arcgis-drone2map-ideas/simplify-or-filter-on-history-and-or-location/idi-p/1619560 <P>I did a small test on a set of images close to Oslo/Norway.&nbsp;</P><UL><LI>Image CRS: WGS84/EGM96</LI><LI>Project CRS: ETRS1989 UTM Zone 32N/NN2000&nbsp;</LI></UL><P>When setting up the "Coordinate System Transformation" user is presented with a list of (not less than) 50+ possible transformation paths(!).&nbsp; The list includes</P><UL><LI>"abandoned" CRS's like CRS's based on NGO1948, European1950 etc</LI><LI>non-Norwegian CRS's like Swedish, Finnish and Estonian&nbsp;</LI><LI>and of course comboes of the above (for example abandoned Swedish RT90)</LI></UL><P>As EPSG database will continue to grow, an idea could be to implement a filter for possible CRS's hence transformation paths? Like a spatial filter and possibly a "historical" filter?</P> Fri, 30 May 2025 10:17:46 GMT https://community.esri.com/t5/arcgis-drone2map-ideas/simplify-or-filter-on-history-and-or-location/idi-p/1619560 Pål_Herman_Sund 2025-05-30T10:17:46Z https://community.esri.com/t5/arcgis-drone2map-ideas/simplify-or-filter-on-history-and-or-location/idc-p/1629461#M124 Wed, 02 Jul 2025 16:05:27 GMT https://community.esri.com/t5/arcgis-drone2map-ideas/simplify-or-filter-on-history-and-or-location/idc-p/1629461#M124 AnthonyMason 2025-07-02T16:05:27Z https://community.esri.com/t5/arcgis-drone2map-ideas/simplify-or-filter-on-history-and-or-location/idc-p/1629817#M125 <P>Thanks&nbsp;<a href="https://community.esri.com/t5/user/viewprofilepage/user-id/120810">@AnthonyMason</a>&nbsp;for considering this idea.&nbsp;</P> Thu, 03 Jul 2025 12:34:40 GMT https://community.esri.com/t5/arcgis-drone2map-ideas/simplify-or-filter-on-history-and-or-location/idc-p/1629817#M125 Pål_Herman_Sund 2025-07-03T12:34:40Z