…a historical look at the software system’s roots
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MapCalc software is the result of integrating SoilRx precision agriculture software
with pMAP map analysis software.
SoilRx provides the Windows environment for
management and display of raster maps, as well as spatial interpolation and
statistical analysis capabilities. pMAP (Professional Map Analysis Package) provides spatial
1970s— The origin of pMAP
software dates to a dissertation project at Yale University from 1977-82. Doctoral student C. Dana Tomlin extended the
grid analysis module to Harvard University's SYMAP program with professors Joseph K. Berry (doctoral advisor)
and Kenneth L. Reed serving as collaborators on Tomlin’s work. Additional analytic operations and an
interactive user interface were added to the SYMAP module and made generally
available by Yale University in the public domain as the Map Analysis Package (
1980s— In 1982
In 1986, Drs. Reed and Berry formed Spatial Information Systems (SIS), Inc., and utilized the basic framework of the Pascal version of the software to develop a commercial version for DOS-based PC environments (copyright 1986). In 1989 this version was completely rewritten and enhanced in the Modula II language (copyright 1989). This version underwent several important modifications from 1990 through 1996 and was distributed under the name pMAP Version 3.1. Special educational licenses for classroom use (Academic Map Analysis Package, aMAP) and for self-instruction (Tutorial Map Analysis Package, tMAP) were acquired by over 200 universities and thousands of individuals.
1990s— In 1998 HyperParallel, Inc. (HPI), consultants and software developers in data mining technology, agreed to jointly develop a version of pMAP for parallel-processing environments. Under this agreement, HPI and SIS converted the Modula code to the Visual C++ and began optimizing the programs for HyperParallel’s parallel environment. In late 1998 HPI was acquired by Yahoo and the software sales/consulting division was disbanded. As a result the parallel-processing project was terminated. SIS extended the code conversion to Visual C++ and wrapped the individual components as ActiveX controls.
In fall 1997, Red Hen Systems (RHS) began development on SoilRx and released it in late 1998. The software accepts yield and sample data then spatially interpolates these values into continuous maps of crop productivity and soil nutrient, properties, conductivity and other distributions for a field. The advanced 2D and 3-D graphics, charting functions and grid math capabilities enable farmers to visualize and interact with the spatial relationships within and among precision agriculture data. The software is primarily used to assist in identifying management zones of similar data characteristics and in the development of prescription maps that use variable rate technology to vary the amount of chemicals applied throughout a field. Traditional farming practices ignore the spatial variation in a field and apply the same treatment everywhere. SoilRx and other RHS products are widely distributed throughout the precision agriculture industry.
2000s— In the spring of 1998, Red Hen Systems began purchasing deployments of the pMAP ActiveX controls to enhance the spatial analysis capabilities of SoilRx. In April of 2000 Red Hen Systems acquired SIS and all rights to the pMAP code. MapCalc Learner and Academic packages are the educational versions of the software based on the integration of the two technologies. MapCalc Professional is the commercial version.
In 2004 Red Hen Farming Systems was spun off from Red Hen Systems to provide a focus on precision agriculture applications. Red Hen Farming continued to enhance and streamline MapCalc for incorporation into several commercial systems providing yield mapping and analysis capabilities. In 2007 the MapCalc Learner version was included with the book Map Analysis (Berry, GeoTec Media) providing extensive hands-on experience with the concepts and procedures involved in spatial analysis and statistics.
In 2008 the software rights were returned to Berry and Reed to pursue new academic and commercial applications. The MapCalc Learner and Academic versions and numerous instructor materials for infusing grid-based map analysis into college courses are available for free download from BASIS. MapCalc Professional is no longer distributed.
Berry & Associates // Spatial Information Systems (BASIS)
…see www.innovativegis.com/basis/ for online materials.