Land Surveyor Forum

Replies

• Land Surveyor

  Javier A bañados April 14, 2016 at 12:32pm

  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.
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    Billy Brooks > Javier A bañados April 14, 2016 at 2:16pm

    Well I guess , it got added to , Thanks Javier

    https://en.wikipedia.org/wiki/Helmert_transformation    

    Who"s next                                                     

    

    Helmert transformation

    The Helmert transformation (named after Friedrich Robert Helmert, 1843–1917) is a transformation method within a three-dimensional space. It is freq…
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      Billy Brooks > Billy Brooks April 15, 2016 at 2:34pm

      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...
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  Billy Brooks April 12, 2016 at 10:58pm

  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

  

  MnDOT Survey Tools and Technology

  The Minnesota Department of Transportation provides its home page with links to its regional offices, bid letting, construction, future highway plans…
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    Billy Brooks > Billy Brooks April 13, 2016 at 6:18pm

    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

    

    Engineering Surveyor

    Engineering Surveyor Home
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      Billy Brooks > Billy Brooks April 13, 2016 at 10:34pm

      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
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    Billy Brooks > Billy Brooks April 13, 2016 at 6:01pm

    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.

    

    Mercator projection

    The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator in 1569. It became the…
• Land Surveyor

  Javier A bañados April 12, 2016 at 6:52pm

  Dear
  Search National Mapping Program
  Technical Instructions

  PLANE
  Generalized Plane
  Coordinate Conversion
  Subroutine Package
  Software Documentation
  Documets and fortran code
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    Billy Brooks > Javier A bañados April 12, 2016 at 11:38pm

    Hi Javier, that looks like a lot of food , You live between the coast and  the Andes. Thanks for your reply
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  Paul Funck April 12, 2016 at 4:26am

  Go try this site. http://www.onlinemapcoordinatesconverter.com/