Introduction – Global Mapper

GeoCalc C++ Version 9.3

Blue Marble’s Geographic Calculator^®, renowned for its reliability and accuracy is the world's leading coordinate conversion tool. The core technology behind the Geographic Calculator is available through the GeoCalc Software Development Kit^® allowing developers to embed coordinate conversion and geodetic calculation support into their own systems and programs.

The GeoCalc Class Library (GeoCalc) is a fully object-oriented class library designed for GIS professionals and software developers. Often used with GPS, surveying, engineering, and mapping systems GeoCalc Class Library provides users with high accuracy, dependable coordinate conversions, transformations, and geodetic calculations. GeoCalc employs a high-level parametric database model to efficiently store and retrieve coordinate reference systems, Area of Use statistics, ellipsoids, geodetic datum transformations, unit parameters, and everything else that is needed for advanced geodetic software applications.

This document provides a description of the GeoCalc features and functions, along with a Getting Started Guide to help new users to quickly become acquainted with the tool kit.

New Features in Version 9.3
Key Features of GeoCalc
Contact Blue Marble Geographics
System Requirements
DataSource Files
Getting Started Guide - A set of lessons to help new users learn about GeoCalc.
Object Definitions - A description of all of the classes, enumerations, and methods available within the GeoCalc tool kit.

**NOTE** Version 6.6 of the GeoCalc toolkit contains a very important update to the way we handle wchar_t strings. Click here for more information.

Further documentation for GeoCalc and other Blue Marble software can be found on our Knowledge Base, and on our YouTube channel.