Blog
Has AutoCAD Been Admitted to the Esri Club?
Ever since I first started working with GIS, a lot of the most valuable data came from CAD users. At first there was a chasm between the CAD and GIS worlds—different approaches, different tools, different ways of representing things in the real world, different ideas about accuracy. Gradually users on both sides started reaching out....
Spiral Curve Offsets
Editor’s Note: Spiral curves have been used in engineering design for centuries, most prominently for railroads coincident with the worldwide boom in railway construction in the late 1800s. Many who have had to lay out or retrace spiral curves (especially any offsets) might have secretly cursed whoever chose to add them to the design and...
About xyHt
xyHt is a magazine and blog covering geospatial disciplines for professionals and prosumers, published by Flatdog Media. We print 12 issues of xyHt per year, with two seasonal supplements (sometimes three). All print issues are also available digitally for free, as are our two emailed newsletters: Pangaea and Surveyors’ Field Notes. A print subscription is...
Flatdog Media
Flatdog Media publishes xyHt print and digital magazine, a blog, and two enewsletters. We’re comprised of a small staff; our office is in Frederick, MD but our writers and editors live and work internationally. Click on each name for bios, photos, and articles for and about staff members. Publishing Staff Neil Sandler, Publisher Shelly Cox,...
xyHt: A New Magazine
Like so many ideas in surveying, starting this magazine started over a beer at a great little Irish pub with friends, where we discussed what the landscape of surveying might look like in the not-so-distant future. I figure, during the course of almost 50 years that I’ve been a geodetic surveyor, virtually all parts of...
xyHt: What Does It Mean?
Why did we pick an obscure geodetic expression as the name of our magazine? It’s not all that obscure—it represents a foundational element requisite to nearly all human endeavor. It touches your life explicitly and in the abstract. All of the ways that humans have measured and gauged their world, each of the conventions they...
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