https://community.esri.com/t5/arcgis-pro-questions/stack-profile-planar-vs-geodetic/m-p/1497650#M86776 <P>I'm using imported LIDAR data to export 2D cross-sections that I then use to evaluate the stability of slopes (geotechnical engineer). I'm using the stack profile feature. I compared the output to some actual surveys topos I have and the results were noticeably different. I then used just the basic measuring tool in gis to measure the roof of a nearby building and compared it to a linear measurement in Google earth. In GE, the building measured about 45 meters. In ArcGIS, the building measured about 70 meters. I noticed the measuring tool was set to planar. When I switched it to geodesic, it matched GE perfectly.</P><P>How can I adjust the data obtained with the stack profile tool so that it gives geodesic measurements? Open to other options.</P><P>Secondary question, why is there such a significant distance between the two over such a short span?</P> Wed, 26 Jun 2024 15:06:55 GMT v1aida 2024-06-26T15:06:55Z https://community.esri.com/t5/arcgis-pro-questions/stack-profile-planar-vs-geodetic/m-p/1497650#M86776 <P>I'm using imported LIDAR data to export 2D cross-sections that I then use to evaluate the stability of slopes (geotechnical engineer). I'm using the stack profile feature. I compared the output to some actual surveys topos I have and the results were noticeably different. I then used just the basic measuring tool in gis to measure the roof of a nearby building and compared it to a linear measurement in Google earth. In GE, the building measured about 45 meters. In ArcGIS, the building measured about 70 meters. I noticed the measuring tool was set to planar. When I switched it to geodesic, it matched GE perfectly.</P><P>How can I adjust the data obtained with the stack profile tool so that it gives geodesic measurements? Open to other options.</P><P>Secondary question, why is there such a significant distance between the two over such a short span?</P> Wed, 26 Jun 2024 15:06:55 GMT https://community.esri.com/t5/arcgis-pro-questions/stack-profile-planar-vs-geodetic/m-p/1497650#M86776 v1aida 2024-06-26T15:06:55Z