Coordinate Systems and Locations
Introduction
During a test, it might be relevant what the exact locations of a transducer is. A location can be expressed relative to a defined coordinate system.
Coordinate Systems
A coordinate systems is an orthogonal, threedimensional system. It can be defined relative to a parent coordinate system with a rotation axis, a rotation angle and a translation.
Testdefiner
Coordinate systems are defined in a Testdefinition under Advanced -> Coordinate Systems. Systems can be loaded from a file or entered manually.
Notes:
- A coordinate system can have one predecessor coordinate system, what can be seen as its parent system.
- A coordinate system with predecessor 'none' is being seen as the root system, which usually is an inert system.
- The rotation axis doesn't have to be normalized.
- To transform from the predecessor system to the successor system, both the translation and the rotation are expressed in the predecessors system.
- The right-hand rule is applied for defining the rotation angle.
STREAM Library
The next functions are dealing with coordinate systems:
Function |
Description |
|---|---|
|
Read coordinate systems from the Testdefinition when reading a file |
|
(Re)define the relations between coordinate systems |
Locations
Testdefiner
A location is coupled one by one to a column. Therefore it can be defined on the Locations tab of a column, when indicated as sensor.
STREAM Library
The next functions are dealing with coordinate systems:
Function |
Description |
|---|---|
|
Read sensor locations from the Testdefinition when reading a file |
|
(Re)define the location of the sensors relative to coordinate systems |
|
Transform coordinates of locations between coordinate systems |
