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Replies
Charly
I use a really easy excel sheet that use Helmert 2d equation to transform projected coordinates to field coordinates, if you want I can sen you, You need at least 2 points in both systems.
Well I guess , it got added to , Thanks Javier
https://en.wikipedia.org/wiki/Helmert_transformation
Who"s next
Well , I guest I am next? Anyway here is some good reading,thought i would add it.
http://blogdesignvendor.com/eaps__mit__edu--12__114--MapProjections...
http://web.gps.caltech.edu/gislab/HowTo/ESRI%20-%20Map%20Projection...
Hi Charlie , You will like Jacob Walls programs they are similar to TDS format they can not get any easier.You also will enjoy the 41cx Emulators. The first thing i did when i downloaded mine was to program my Az Sun in it . I customized AZ011 into it. I have AZ009, the AZ011 is only 140 +- , program lines it works with out the clock.You enter the time and stop watch and angles. The AZ009 is over 900 lines and Run / stop keeps up with the time when you key in the angles. I also think you would like the HP 35s it has 801 storage registers indirectly addressing program lines and memory, it almost programs like the 41cx they made like this for test exam for students keeping it key entry for programs. It only cost 60 dollars. Talking about the Corps they tried to work me death, over 12 hour days 7 days a week. I kept this up for 5 years. It was alright at first,and i learned a lot about River Surveying and this helped me years later i work on Dredging projects. I just wanted to do land surveying also. Sometimes I wish i had stayed with them.I have always like surveying property and the history that went with it. No my first Auto Cadd was 14 then i moved on. I had Eagle point, and Sight Survey with it. I still have all my old programs . Had to update to newer programs these computers programs change ever 3 years, then nothing works. I have TDS Works for Recon this is what i mainly use. I still have 5 HP 48gx with TDS Pro and SMI Construction 5, data collectors 2 of each 1 SMI Cogo and to many HP calculators to list. Some one is always trying to buy the 48's with the survey cards. Look at MN dot program it will work on a 32 bit system it's MN Cogo 32 it's set up for public land surveys also it not just for highways. You may can use it. look at all their programs they have calculator programs also.
http://www.dot.state.mn.us/surveying/toolstech/survsoft.html
Hi Charlie , I forgot to mention, in the survey software link.
http://engineeringsurveyor.com/
look at this site
http://www.nrgsurveys.co.uk/index.htm
see if you can use this
http://www.nrgsurveys.co.uk/cogeo.htm
Charlie ,Those ground coordinates links, I just wanted you to read it , I don't want to get in the middle of that debate with nobody.
billy
Here is some food for thought,
https://en.wikipedia.org/wiki/Mercator_projection
https://en.wikipedia.org/wiki/Lambert_projection
https://en.wikipedia.org/wiki/Lambert_cylindrical_equal-area_projec...
https://en.wikipedia.org/wiki/Lambert_azimuthal_equal-area_projection
https://en.wikipedia.org/wiki/Lambert_conformal_conic_projection
https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordin...
I have all of this in my Land Surveyors Reference manual, this is better than having to scan all of this. A lot of good info to have.
Dear
Search National Mapping Program
Technical Instructions
PLANE
Generalized Plane
Coordinate Conversion
Subroutine Package
Software Documentation
Documets and fortran code
Hi Javier, that looks like a lot of food , You live between the coast and the Andes. Thanks for your reply
Go try this site. http://www.onlinemapcoordinatesconverter.com/