Land Surveyor Forum

Replies

• 

  William J Barrows Jr January 29, 2013 at 4:54pm

  I just got a Autocad macro (vba project) working that will convert State Plane Coordinates to Latitude and Longitude. Click a point in the drawing and it converts the SPCS of that point to Lat/Long and then labels the values at the point you clicked. You can also Enter Lat/Long and a point is plotted and labeled.
  
  You must have the corpscon_v6.dll in C:\program files\Corpscon6 along with the folders containing geoid, nadcon, vertcon data files. These are installed with the free download from http://www.agc.army.mil/corpscon/

  I tested in Autocad 2004 and 2013. The form is setup for my local SPCS zones (1601 and 1602), but it can be modified for any zone(s). 

  email me if interested.

  

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• 

  zainul ulum December 22, 2012 at 10:53pm

  Hello John

  i posted spreadsheet on Excel spreadsheet forumThe formulas used in calculations are adopted from Redfern Formula

  may it can help.

  thanks

  -zainul-
• 

  Paul Quagge December 21, 2012 at 11:15am

  Hello John,

   

  To start go to the NGS Tool Kit here:

   

  http://www.ngs.noaa.gov/TOOLS/spc.shtml

   

  Paul
  • 

    Paul Quagge > Paul Quagge December 24, 2012 at 4:01pm

    Hello John,

    If you want to do it long hand, try these...

    Paul
  • Survey Legend

    ⚡Survenator⌁ > Paul Quagge December 21, 2012 at 1:54pm

    exactly...  we also have a reverse geocoder on the site under TOOLS in the navigation...