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The orientation data are used for the orientation of single pairs of photographs. There- 
after the essential data collection for the LIS with the program MAPS200 may start. 
Collecting information of already existing maps proceeds with the same program. There- 
fore the digitizer Kern GSD-2 (see fig. 1.2] based on two rectangular bars is applied. The 
absolute orientation of the digitizer is calculated with either a Helmert, an affine or a 
projective transformation, 
The program MAPS200 combines collected data with a predefined library of linetypes' 
and symbols, and then puts those data in predefined levels. Storing special functions 
like the geometrical type of lines (straight, arc ...), the squaring and hatching of buildings. 
parallel lines and the input of variable or fixed annotations makes this program suitable 
for universal application for the establishment of a LIS. The data are stored in the Kern- 
CAM-Format. which requires quite an amount of space, but which is selfdescriptive and 
easy to edit. 
Up to 999 different levels and 999 different linetypes provide an output of individual da- 
ta combinations for each task. For example this can be a plot of all informations of one 
utility system. or for planning and building purposes a combination of all utility systems. 
Every plot scale can be chosen, but should respect the information density. Because of 
the data base principle every update is immediately available for all users and applica- 
tions. Even while plotting, changes of single linetypes and symbols in size, form and pen- 
selection, or their cancelling are possible. 
The produced data can be checked and edited on the interactive graphical screen of the 
IMLAC-Terminal with the program MAPS300 (see fig. 1.7). In detail, the following func- 
tions can be executed: 
editing of single points 
- " segments 
- i " groups 
" n 
- line types and symbols 
- a " levels 
combining of different files and levels 
producing of new files. 
As well as the other programs, the MAPS 300 consists of the menu technique. The editing 
on the vector-screen may be performed with either light pen or the keyboard. 
Far the graphical output of the results of this project, the precision plotting table Kern 
GP1 is available (see fig. 1.8). The produced new maps are plotted with the program 
CAMGP1 which makes an access to the symbol- and linetype-library. 
4. Presentation of a sample area 
  
By a section of a sample area it is to be seen how the different components of the sy- 
stem are brought together. The ariginal data are revised and listed together with the 
MAPS 300 on the IMLAC-Terminal. The output of the data in a map can vary from scale 
and contents. The following figures are samples of check plots of data collection, re- 
vised and combined data and at last a sample of map. 
Figure 2 shows the data of the digitizing of a sewerage-utility's map. The cadastral bor- 
ders are only digitized to match this data to the cadastral data and they are not used 
further on. 
Figure 3 gives an example how a first cembination of cadastral data with utility data 
looks like. The variation of types of barder lines are layed down for this sample on one 
level, as you may want to leave it for special purposes. e.g. of the utility company. 
Figure 4 gives the sample of a map. For more clearness we give only the sewerage system 
as part of the utilities, cadastral data and the information about topography, roads etc. 
which is collected with the DSR-1. A normal output of various data is in different co- 
lours, so that lines can be distinguished by line-elements and colour. 
The figures 2-4 have a 1:1 000 scale.