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COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND
6.4.7 METHODS OF ALIGNMENT
With WYLER LEVELSOFT PRO the following methods of aligning the measuring objects are possible:
• Alignment according to the endpoints method
• Alignment according to the ISO 1101 method
• Alignment according to the linear regression method
The different methods are described below, and a number of graphs are used for better understanding.
ISO 1101
Linear regression
Endpoints
6.4.7.1 Alignment according to the endpoints method
Measured line
Maximum error
Line connecting endpoints
In this method the first and the last measured point are connected by a straight line. The connecting line
is moved parallel to the highest and the lowest point of the object. The distance between the two lines is
the maximum error calculated according the endpoints method.
6.4.7.2 Alignment according to the ISO 1101 method
Measured line
Maximum error
Parallels according to ISO 1101
In the ISO 1101 method, two parallel lines are aligned in such away that the distance between them
is the least possible.The distance between the two lines is the smallest possible error according the
ISO 1101 method.
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