446 
3. Aerotriangulation and Bundle Block Adjustment 
  
For the establishment of the LIS coulour diapositives were taken during flights over the 
project area Neustadt in the scale of 1:3300. Four strips with altogether 72 pictures were 
evaluated. The measurements were carried out with the aerotriangulation program of the 
DSR-1. Thus 258 object points were recorded by 1300 measurements. 
The calculation of the bundle block adjustment was accomplished by the program BLUH 
with robust estimators and additional parameters (see Leonhard, Jacobsen, Stampa-WefBel). 
The amount of the standard deviation sigma Odid not exceed 4.5 um. 
4 MAPS 200 - Program for Data Acquisition 
  
The program MAPS 200 (Microcomputer Aided Photogrammetric Station) is a program for 
the acquisition of any photogrammetric data,combined with an on-line plotting and their 
registration in a data base system. An orientation of a stereomodel is necessary for the 
measurements with MAPS 200. In the project Neustadt the orientation parameters were 
calculated during the bundle block adjustment. After an inner orientation is performed 
the transformation parameters can be downloaded to the plate processor P2. 
It is the on-line compilation part of the program, which combines measured information 
with predefined features. Therefore a useful library, containing all those features, has 
to be installed. In this case, the library contains 199 different linetypes and 199 different 
symbols. The library depends on the project. it will be used for. It should be established 
as logical as possible. Linetypes and symbols with the same feature should be on following 
linetype- and symbol-numbers. 
For the project Neustadt all gas-utilities got numbers form 81 to 70D, all electricity-utili- 
ties those from 71 to 80. while all connections between the main lines and the individual 
supply are ending with ..5: i.e. gas supply is defined by no.55. electrical supply by no.75. 
Even the combination between linetype and symbol should be sslogical as possible as 
well. Corresponding to linetype 72 high-voltage-cable. the symbol 72 is defined as a 
high-voltage-mast. 
The definition of the single linetypes and symbols offers a variety of combinations (see 
fig.4). Different hardware-linetypes and hardware-symbols may be combined. In addition 
i SYMBOL CODE NUMBER = 72 1 LINE TYPE CODE NUMBER = 72 
2 ALPHA DESCRIPTION = STAHLGITTERM 2 ALPHA DESCRIPTION =  HOCHSPANNUNGSLTG 
3 UTOMATIC PEN SELECTION = 4 3 AUTOMATIC PEN SELECTION = 4 
4a HARDWARE SYMBOL NUMBER = 4 HARDWARE LINE TYPE NUMBER = 3 
4b SYMBOL FILE NAME = MAST.SYM 5a STANDARD LINE SIZE = 5.0 
5 STANDARD SYMBOL SIZE = 2.0 55 LINE RATIO = 
5 ANNOTATION = VARIABLE 6a INCLUDED SYMBOL NUMBER = 
7 ANNOTATION SIZE = 2.5 5b SYMBOL ROTATION = 
3a TEXT SLANT = 50.0 7 NODE SYMBOL NUMBER = 
3b TEXT ROTATION = 3 LEVEL NUMBER = 172 
9 RELATIVE TO = H 
10 LEVEL NUMBER = 72 
Fig.4: Linetype and symbol description 
user-defined symbaol-files may be used. Size. rotation and ratio as well as different pens 
or annotations can be defined. The relation to a level can precombine symbols and line- 
types for a special task. For the measurements the operator needs a catalog including the 
connections between number, alpha description. existing maps. the on-line plot and. if 
necessary, the photograph (see fig.5). 
Nevertheless. plenty of objects like public and private houses cannot be differentiated by 
the operator during measurements. Therefore it is necessary to define a level for unde-