Blog
The Lot Corner
A large survey-engineering firm had developed a subdivision, bounded by a section line on the north side and a 1950 subdivision and 1/16 line on the east side. By doing so they had exposed a five-foot overlap between the section line as run with GPS and the 1950 subdivision. They sought advice from the county...
From Traditional Photogrammetry to UAS
Photogrammetry has changed substantially in the past three decades. When Jeff Yates began in the business 32 years ago, he used a projection system known as a Kelsh two-bucket plotter. “That was four generations ago of photogrammetric systems hardware,” he recalls. “From there, we went to the analog stereo plotter. That was the second big...
Critical Issues for GIS/Survey Cooperation
State Plane Coordinates in Legal Descriptions The time is now to have State Plane Coordinates (SPC) attached to key monuments that should be part of just about any legal description, in the proper context.* This has been discussed since the early 1980s and has been accomplished only on a piecemeal basis. With coordinate inclusion, a...
High Accuracy for Sanitation Lines
This proved true for Manchac Consulting Group, Inc. when they recently teamed with Louisiana’s Bossier City to solve an infrastructure issue. The project provided the chance for Manchac to expand their GNSS capabilities, an expansion from which the company is continuing to harvest fiscal rewards. Having hired Manchac in the past for design and engineering...
Satellite Imagery for Precision Agriculture
Precision agriculture consists primarily of using geospatial technologies to map spatial variations in crop and soil conditions and to match inputs—such as water, seed, and fertilizer—to those variations by applying them at variable rates. The link between the spatial variations and the variable rates are zone maps and prescription maps. The former show the difference...
Google Glass
The box a Glass arrives in is pretty impressive in and of itself—it reminded me more of Apple packaging for iPads than of typical Android products (top right). A little card underneath the Glass holder tells you that you are special for spending so much money (middle right). There are really very few operating instructions...
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