Speleological Surveying with Dot3D in Spain

We're very glad to see Dot3D's scale and accuracy capabilities being put to the test by Pedro González and his team at the Pozo Azul cave mapping project in Spain. Please see below for direct quotes, images, and videos from the field:

"After a lot of tests with a lot of apps I think I have come up with the perfect application to combine the usual speleological topographic method with the LIDAR scan using the sensor integrated into the iPhone."

"The accuracy compared to the topographic, polygonal, and radial surveys taken with DistoX2 is perfect, using AprilTags placed at each station and georeferenced with respect to the cave entrance coordinates. The scan's location in QGIS is also perfect."