Connecticut Association of Land Surveyors

Presents: COGO in a Spreadsheet Workshop

Wednesday, July 18, 2018 8:30 am - 4:30 pm

CCSU Institute for Technology & Business

185 Main Street, New Britain, CT

Presented by: Dr. Tom Meyer, Kevin Franklin & Kevin Nelson

Course Summary

In daily practice, surveyors rely on the processors built into their CAD programs when reducing raw field data to coordinates. It isn’t that the coordinate geometry is overly difficult, but for large batches of data, pen and paper calculations simply take too long.

This workshop is intended to provide attendees with another tool in the toolbox for working with field data. Microsoft Excel is a widely used spread-sheet program that is likely to be already installed on your office computer.

In hands-on exercises, we will demonstrate how to set up your own Excel template, which can then be used over and over again back at the office. It is anticipated that the template will be valuable as both a backup and a check on your CAD proces-sors, and simultaneously beneficial in terms of rein-forcing the COGO formulae and reductions.

We will review spreadsheet basics and unit conver-sions before dissecting a data set generated by stu-dents from Dr. Meyer’s Natural Resources Applica-tions of Surveying course at UConn. This work-shop will be a condensed seminar of the same Ex-cel functions, programming, and formatting as taught to UConn students.

To complete this workshop and get PDH or CEU credits you will take a 10-question multiple choice exam at the conclusion of the session. A minimum score of 70% is required to gain the credits for this workshop.

Cost

Registration fee for the workshop: $200 for CALS

members & members of other Surveying Societies;

$250 non-members, $25 students.

Full refunds for cancellations made 48 hours prior to

the workshop.

Learning Objectives

Upon successful completion of this course, participants will be

able to utilize a spreadsheet to:

- Convert angles and distances between commonly used units.

- Generate the coordinates of an unknown point and inverse

between pairs of known coordinates.

- Reduce distances by their grid and point scale factors

- Perform collimation corrections.

- Create a compass rule table and determine adjusted traverse

coordinates.

- Perform a constrained least-squares adjustment on three-wire

leveling observations.

Workshop Requirements

In order to realize the potential of the information

provided in this workshop, registrants must be able to plan for the

workshop in advance. The following requirements of this work-

shop must be met:

1. Bring your own laptop computer with Microsoft Excel in-

stalled.

2. After you register, you will be provided with a folder con-

taining sample raw files on either a thumb drive or a share

drive link. Copy the files to your laptop.

3. The workshop room will have free WIFI access.

Professional Workshop PDH/CEU credit

CT, VT, RI, ME 6.75 PDH, NH 1.7 CEU

NY Live Credits 6.75 Hours, 0.675 CEU

SECURING THE FUTURE THROUGH EDUCATION

REGISTRATION: COGO in a Spreadsheet WORKSHOP July 18, 2018

Name: Company:

Address: Phone: ____________________________

City: State :_______ Zip:

Email:

Credit Card Numb: Expiration date:

Signature:

Registration Fee $200 for CALS members & members of New England & NY Professional Surveying Societies;

$250 non-members, $25 students. Make Check Payable to : CALS and send to CALS, 78 Beaver Road, Suite 2-J, Wethersfield, CT 06109

Phone (860) 563-1990 Fax (860) 529-9700 email kathy@ctsurveyors.org

Workshop Instructors

Thomas H. Meyer, Ph.D. is a pro-

fessor in the Department of Natural

Resources & the Environment at

UConn. Dr. Meyer graduated with a

B.S. in Mechanical Engineering

from the University of Arizona

(1981), a M.S. in Computer Science

from the University of New Mexico

(1986), and a Ph.D. in Forest Sci-

ence from Texas A&M University

(1998). He is a past President of the

American Association for Geodetic

Surveying and the author of Intro-

duction to Geometrical and Physical

Geodesy.

Kevin D. Franklin, PLS is the sys-

tems administrator for Connecticut’s

ACORN, owner of Franklin Surveys

and an adjunct instructor at Three

Rivers Community College. Mr.

Franklin has a M.S. in Geomatics

from the University of Connecticut.

Kevin Nelson is a surveyor at

Meehan & Goodin. Mr. Nelson has

a B.S. in Geomatics from the Uni-

versity of Connecticut and is Con-

necticut’s representative to the

NSPS Young Surveyor’s Network.

Schedule

8:00 - 8:30 am Registration, Coffee+

8:30 – 9:00 am - Introduction - Review of Excel basics - Overall workshop goals

9:00 – 9:30 am - Organization of the work - The use of tabs vs. a monolithic approach - Importing raw field data

9:30 – 10:00 am Unit Conversions - Unpacking DMS, to DD, to Radians - US Ft to meters

10:00 -10:15 am Coffee Break

10:15 –10:45 am The Direct and Indirect Problems

- SIN(), COS(), ATAN(), and ATAN2() - Checking with Pythagoras’ famous theorem - Grid & point scale factors, convergence

Schedule continued...

10:45 am - 11:45 Traversing - Collimation corrections and close horizon adjustment

11:45 - 12:30pm Lunch provided

12:30 -1:00 Traversing, continued - Calculating relative precision Compass rule adjustment

1:00 - 2:30pm Leveling - Single read vs. three-wire method - Example with three-wire data - Least squares for levels

2:30 - 2:45pm Coffee Break

2:45 - 4:30 pm: Wrap-up - Complete workshop exercises - Complete Assessment to turn in for PDH - Complete Questionnaire.

COGO in a Spreadsheet Workshop

Wednesday, July 18, 2018 8:30 am - 4:30 pm

Registration fee includes

continental breakfast lunch,

software, parking & handouts.