Developer / National Geodetic Survey

  This program facilitates the process of edtiting, formatting and checking digital leveling observation data and creates abstracts, bok files, and VERTOBS datasets for submission to the National Ge

  WinDesc is a handy program designed for creating, editing, and formatting the files that include geodetic descriptions. The user can create a new description file and enter all the data from the

  CALIBRAT is a compact program that is designed to calculate the scale and the constant corrections for electronic instruments that measure distance. The program can make the estimation by making

  Forwrd3d is the 3D version of the Forward program that also adds a third parameter to the calculation: the height component. The goal of the program is to compute the geographic position of a poin

  Invers3d is a the 3D version of the Inverse program and has the ability to compute the distance between two points by also including the height component. The parameters can be entered as geodetic

  HTDP is a compact program that intends to help users to predict horizontal displacements and to transform positions between reference frames. The application is designed to calculate values for lo

  XNTG is a compact tool designed to help you extract sub-grids from binary data files. The program can be used to convert back and forth between binary and ASCII. The application allows you to extr

  INTG is a lightweight program that allows you to interpolate geoid heights from data files using user-provided coordinates.You can enter the parameters from the keyboard or specify the folder that

  LVL_DH is a compact application that is used to estimate the height difference between two different objects. The calculation is performed by removing the orthometric correction from the differenc

  GPPCGP is a lightweight application that allows you to convert between NAD 27 State plane coordinates and NAD 27 geographic positions. The application is designed to transform the coordinates into