The 3-D Global Spatial Data Model: Principles and Applications, Second Edition

I proofread the first edition (not by request, but since I read the book cover to cover and found some errors...). I wonder what the differences are between the first and second editions. Maybe Earl will weigh in?

Great book by Earl Burkholder.I keep it by my desk, it is a very handy reference to have when writing software routines. That and Surveying Theory and Practice by Davis Foote Anderson and Mikhail (the first survey book I bought when I started as a survey tech 36 years ago) are the only two survey related books that are close by. I have many more survey related books, but those two I keep close.

With the move to the new 2022 datums the concept of ECEF XYZ as the primary coordinate system for computations and archiving makes a lot of sense. My misgivings about it in the past (and now) was the uncertain relationship between orthometric heights and ellipsoidal heights. Uncertain in the sense of not being exact. As geoid models get better, that is becoming less of an issue. Once we go to a pure gravimetric height system then it will be mostly moot. The one drawback I still see is that XYZ is difficult if not impossible to visualize in our round earth/flat earth world. But computationally it makes things much easier, so as a programmer I prefer to work in ECEF when possible.

The problem with Earl F. Burkholder's work, be it a paper or book is that there is a large number errors in it. Simple ones at that.
Why can't he find some proofreaders and have them go over a chapter at a time and give him the corrections?

Case in point; in his new book that Hamilton posted above on page 160. P = (N+h)cos Latitude
His answer 5,398,397.2940 m
correct 5,398,397.1394 m

This makes his calculation of X,Y,Z on page 160 INCORRECT. He also has errors on the next page (pg. 161).

I find all these errors annoying and it takes away from his work. I am sure that one will find many more errors in his book; I have only looked at
about 5 pages.

JOHN NOLTON

JOHN NOLTON, post: 445362, member: 225 wrote: The problem with Earl F. Burkholder's work, be it a paper or book is that there is a large number errors in it. Simple ones at that.
Why can't he find some proofreaders and have them go over a chapter at a time and give him the corrections?

Case in point; in his new book that Hamilton posted above on page 160. P = (N+h)cos Latitude
His answer 5,398,397.2940 m
correct 5,398,397.1394 m

This makes his calculation of X,Y,Z on page 160 INCORRECT. He also has errors on the next page (pg. 161).

I find all these errors annoying and it takes away from his work. I am sure that one will find many more errors in his book; I have only looked at
about 5 pages.

JOHN NOLTON

John N. and John H. do you plan to send your proofreading finds to Earl ?

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He has a site with corrections at: http://www.globalcogo.com/corrections.pdf

You can also submit error reports.

I guess he no longer has academic slaves (i.e. graduate students).

Jesse: I did send the errors that I had found in to Earl, I assume he took them into account in the next edition. However, I was not reading the book as a proofreader, I just happened to catch some things. My mother was a proofreader (grammar and spelling) on a lot of books, I can tell you that it must be hereditary, because both of my daughters and I have that skill, the ability to instantly recognize a misspelled word or poor grammar.

That doesn't mean I don't make mistakes while typing, I certainly do. It is only when reading what I wrote that I can catch stuff. And I think John N was a bit harsh, it can be difficult to get a technical tome carefully reviewed for all possible errors. In any case, errors and all, I think Earl's book is a great reference.

Wild T2, I don't have the time to proofread the 460 + pages of Burkholder book. I am very busy on a project that will take
me into next year. The errors I have found I DO NOT plan to give them to Burkholder for reasons that would take to long
to explain here.

JOHN NOLTON

Ok.

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