Global COGO, Inc. and Tru3D

3-D Coordinate Geometry & Error Propagation

Based Upon the Global Spatial Data Model (GSDM)

(Tru3D website established June 2017 - last modified November 13, 2019)

Email to Global COGO, Inc.



This web page is an interim connection betweeen the previous Global COGO, Inc. web site and a new web site (Tru3D.XYZ) being developed to highlight the true 3-D nature of geospatial data as described in the Second Edition of "The 3-D Global Spatial Data Model: Principles and Applications."

Previous web sites continue to be accessible. Original 1996 and Revision 1 2017. The page being viewed is Revision 2 - 2019.

**** Link to "The Role of a Model" writing project Click here. **** October 18, 2019.

**** Personal: Resume, Awards, POB career article, Oregon Tech Alumni, ASCE articles, and NMPS Benchmark articles. Click here. **** November 13, 2019.

**** Second Edition of book, "The 3-D Global Spatial Data Model," CRC Press Flyer, Reviews, Purchase, and Corrections.
Click here. **** October 16, 2019.

**** Promoting the Global Spatial Data Model (GSDM),
Click here. **** October 16, 2019.

**** Items related to education and professions,
Click here. ***** October 16, 2019.

**** Miscellaneous items - EFB Master's Thesis, Conformal projection paper by Rollins/Meyer, cartoons, . . . .,
Click here. **** October 18, 2019.



Copyright © 1997-2019 by Global COGO, Inc
BURKORD® is a trademark of Global COGO, Inc.