Category Archives: Spatial IT/GIS

Dealing with Vertical Datum, the Mariners’ Way

Before 3D GIS, we were able to measure miles below the sea and miles beyond our own atmosphere to a great level of accuracy, so how did we do it? There are a few methods for working between vertical coordinate systems, but the one I want to discuss is possibly the simplest, not always the...

The iCon build: Adding Adaptable Options for Layout Automation

Leica’s “iCon build” solves a common layout automation conundrum for vertical construction firms, large and small. Editor’s note: The benefits of automation for vertical construction are not limited to projects that have implemented full-on, single-environment BIM. Many firms and projects can now use a realistic and practical mix of old and new workflows and technologies during...

Exodus Trail

Mapping the 1874 Yavapai-Apache Exodus Trail

Modern hikers map the Exodus Trail of the Yavapai-Apache Nation with GPS. By Everett Phillips, Philipp Hummel, PLS, and Bryan Frazier; introduction by Judie Piner In 1875, both the Yavapai and the Apache people were removed from their Rio Verde reservation in Arizona and force-marched by U.S. soldiers in terrible conditions, nearly 200 miles, to...

Intergeo Hamburg 2017

Smart Cartography

Six examples of how old-fashioned navigation aids have been transformed into today’s smart maps Berlin, Germany 25, April 2017 | The 65th Cartography Conference run by the German Society for Cartography (DGfK) in 2017 is dedicated to smart cartography. At INTERGEO 2017, the community is showcasing its credentials as an innovative scientific discipline that excels...

GEO Business 2017 – Exhibition Preview

Next week, from May 23-24, GEO Business, the UK’s biggest geospatial exhibition and conference of the year, returns to the Business Design Centre in London.  Over 3,000 visitors, from 67 countries, will be there to discover the latest new products, services and solutions from 200 leading industry innovators. Attendees will also have chance to meet...

To survey the ring tunnel, thousands of control points were shot with laser trackers and confirmed in order to maintain a reliable control network.

Neutrino Beam! Scanning a Ring Tunnel

The surveying challenges for construction related to a particle accelerator are exacting—but surprisingly familiar.  By Matteo Luccio Trillions of neutrinos from the sun and other celestial objects pass harmlessly and unnoticed through our bodies each second. These tiny particles are among the most abundant in the universe–a billion times more abundant than those that make...