ms. 
ock 
GEOSCAN: A GEODETIC SYSTEM FOR THE COMPUTERIZED ADJUSTMENT OF 
NETWORKS 
Robert J.G.A. Kroon 
Geodelta Engineering Services 
Delft, The Netherlands 
ABSTRACT 
Geoscan is a software system for the design, adjustment and analysis of two- 
dimensional networks running on low-cost microcomputers. The system includes 
the Delft approach of adjusting geodetic networks. This paper deals with some 
major features of Geoscan. 
1. INTRODUCTION 
Geodelta Engineering Services is a survey company established in 1984. The 
company works within the disciplines photogrammetry and geodesy. 
Within photogrammetry the main activities are the carrying out of terrestrial and 
non-topographic surveys and the development of customized software. This work is 
done purely analytical using non-metric cameras. 
Within geodesy Geodelta designs, adjusts, tests and analyses geodetic and 
deformation networks. 
This paper deals with GEOSCAN (acronym of a GEOdetic System for the 
Computerized Adjustment of Networks) developed by Geodelta Engineering 
Services and Geosoft Consulting. 
2:379 *