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e unlimited movement of the measuring mark in space 
(automatic pan); 
e rotation of the drawing for x-angle from absolute 
orientation of the photo model. 
Before photogrammetric restitution starts it is necessary to 
perform analytical absolute orientation of the photo model 
by using PPCSoft software. It means that PPCSoft is 
practically preprocessor of the MapSoft software system. 
Similar preprocessors have been developed for other 
methods of digitization also. 
e DigiSoft for digitization using tablet digitizer, 
o DigiScan for on-screen digitization of the scanned 
map. 
In addition to previously mentioned functions, all other 
functions for universal DGP support are also available: 
e display functions, 
e editor functions, 
e COGO functions for various constructions of DGP 
elements using coordinate geometry, 
e tools for geometric corrections of terrain objects with 
regular shape, etc. 
Operator supervises map compilation in standard 
cartographic form all the time. Simultaneous update on the 
several workstations of the same data base (same project, 
even same map can be update) in multiuser (network) 
environment is supported. Therefore, it is possible to do 
cartographic editing on separated workstation without 
photogrammetric instrument connected, in order to 
increase efficiency of the photogrammetric workstations. 
5. FUTURE ACTIVITIES 
The development of the major components of the software 
for computer aided photogrammetric restitution in 
Yugoslavia has already been finished. The confirmation of 
the success achieved is the fact that the developed 
technology is currently used on 18 analog stereoplotters. 
Also, large sale restitution started to be carried out 
exclusively in digital form since 1992. This development has 
als been a necessary impulse to completely transit to the 
digital technology of production and maintenance of large 
scale geodetic maps in Yugoslavia. 
Further optimization of the software support to digital 
geodetic map and development of application modules for 
DGP utilization are the goals of further activities. This 
includes support to digital maps for infrastructure systems, 
land consolidation, urban planning etc. In the field of 
Computer aided photogrammetric restitution, activities will 
be: 
* improvement of functions for DTM data acquisition 
and processing, 
249 
e development of functions for digital orthophoto 
production, 
e development of interfaces for linkage to software 
shipped with analytical and digital photogrammetric 
systems. 
REFERENCES 
Foerstner, W., 1981. Statistische Grundlage fur die 
Zuverslassigkeit von Ausgleichungsergebnissen. Institut fur 
Photogrammetrie der Universitat Stuttgart, Schriftenreihe, 
Heft 7, Stuttgart. 
Krarup, T. Kubik, K, 1983. The Danissh Method; 
Experience and Philosophy, DGK, Reihe A, Heft 98, Munich. 
MihajloviC, D., 1986. A Program Conception for Including 
Geodetic Observations and Object Information in Block 
Adjustment with Independent Models. In: International 
Archives of Photogrammetry and Remote Sensing, 
Rovaniemi, Finland, Vol. 26-3/2, pp 515-523. 
Mihajlovió, D., Cvijetinovié, Z., 1992. Digital Cadastral Map 
Using Software System MapSoft. FIG  Intenational 
Conference LAND REFORM AND  CADASTRE, Sofia, 
Bulgaria. 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B2. Vienna 1996