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Query on getCustomData_at_num Function
Hello,
I’m interested to use the SIL feature of QBlade to co-simulate QBlade with other solver for mooring. I understand the syntax for obtaining simulation data at current time step is
”double getCustomData_at_num(char *str, double pos = 0, int num = 0)”
Could you clarify what the last parameter (i.e. num) in the function represents?
In the case of mooring position/velocity/acceleration, there appears to be some difference when num = -1 and when num = 0. The GUI simulation results seem to be consistent with the num = -1 output.
Thanks & regards,
Andhi
Hi Andhi,
the “num” parameter is related tu multi turbine simulations (a feature of QBlade-EE). In this case “num” designates the turbine instance from which parameters are to be read. If a global mooring system is shared between all turbine instances (can be used to interconnect turbines) num = -1 can be used to read data from this common mooring system.
Best regards,
David
Thank you David for the quick clarification.
When num is set as 0, would it then output data with respect to some local axis of Turbine 0?
On an unrelated note, are there any document which could help describe what each output data represents? I suppose some data label like “NP” may not be intuitive for new users. Likewise for the local axes systems which are in use (i.e. _l, _g, _c, _b, _n, _s, etc.).
Thanks & regards,
Andhi
Hi Anshi,
checkout the documentation for an overview of coordinate systems:
https://docs.qblade.org/src/user/coordinates/coordinates.html
NP refers to the neutral point of the floater.
BR,
David
