CFX Post: Problem with Macro
 

Hi everybody,

I was trying to export transient simulation data for selected time steps with the following macro-

!$start = 120;
!$finish = 240;
!for($i = $start; $i<=$finish; $i++){
> load timestep = $i


EXPORT:
Export File = export_exp$i.csv
Type = Generic
Locations = BladePre
Coord Frame = Global
Unit System = US Engineering
Select Variable = Pressure

END

> export
!}

But it did not produce any output!! Can any one show me where I'm doing wrong? Is there any good reference for macro writing? I have no basic on writing macros :o.

Thanks in advance.

Shafi

Hi
 

I guess your using the macro in batch mode, did you add the Command file at the start of your macro, The command file looks like below:

#############
COMMAND FILE:
CFX Post Version = 11.0
END
#############

If your version is CFX 12 then just replace with 12.0 or 12.1 in COMMAND FILE and also add the below DATA READER LINES: The domain names should be according to what you declared in CFX Pre

#############
DATA READER:
Domains to Load = S1, S2
END
#############

As such there are no extensive details given in CFX help for writing macros, but you can find some sample macros.

Thank you so much Pavitran. Yes, I missed the command file and data reader. Let me try with this.

Thanks again.

Shafi

Hi there,

I'm sorry to say it did not work! I encounterd with the following error message-

ERROR
CCL validation failed with message:
Error: Sub-object 'COMMENT:User Data' of type COMMENT is not allowed in /
Error: Sub-object 'REPORT' is not allowed in /
Error: Sub-object 'INTERNAL TABLE:File Information Table P4718farbcUnsteady_001' of type INTERNAL TABLE is not allowed in /
Error: Sub-object 'INTERNAL TABLE:Mesh Information Table P4718farbcUnsteady_001' of type INTERNAL TABLE is not allowed in /
Error: Sub-object 'INTERNAL TABLE:Mesh Statistics Table P4718farbcUnsteady_001' of type INTERNAL TABLE is not allowed in /
Error: Sub-object 'INTERNAL TABLE:Domain Physics Table P4718farbcUnsteady_001' of type INTERNAL TABLE is not allowed in /
Error: Sub-object 'INTERNAL TABLE:Boundary Physics Table P4718farbcUnsteady_001' of type INTERNAL TABLE is not allowed in /
Error: Sub-object 'INTERNAL TABLE:Boundary Flow Table P4718farbcUnsteady_001' of type INTERNAL TABLE is not allowed in /
Error: Sub-object 'INTERNAL TABLE:Force And Torque Table P4718farbcUnsteady_001' of type INTERNAL TABLE is not allowed in /
Error: Sub-object 'COMMAND FILE' is not allowed in /
Error: Parameter 'File' is not allowed in /EXPORT
Error: Parameter 'Type' is not allowed in /EXPORT
Error: Parameter 'Locations' is not allowed in /EXPORT
Error: Parameter 'Coord Frame' is not allowed in /EXPORT
Error: Parameter 'Unit System' is not allowed in /EXPORT
Error: Parameter 'Select Variable' is not allowed in /EXPORT

Any idea?

Shafiul

Hi
 

How are you executing the macro? in batch mode I suppose. Which version of CFX post are you using.

Can you post your macro, I guess that there may be some problem with the syntax.

Hi Pavitran,

Thanks for your respnose. I'm very new to using macro and I've no idea about the batch mode. I wrote the macro in command editor and then hit the process button. Here is the macro-


COMMAND FILE:
CFX Post Version = 11.0
END

DATA READER:
Domains to Load = Default Domain
END

!$start = 120;
!$finish = 240;
!for($i = $start; $i<=$finish; $i++){
> load timestep = $i


EXPORT:
Export File = export_exp$i.csv
Type = Generic
Locations = BladePre
Coord Frame = Global
Unit System = US Engineering
Select Variable = Pressure

END

> export
!}

I'm damn sure I'm doing something wrong. Just can't figure it out!!

-Shafi

Hi
 

In your previous macro there was a syntax error in EXPORT CCL format. Copy the macro in between the hashes and process it. I beleive this will work now.

############################
COMMAND FILE:
CFX Post Version = 11.0
END

! for($i=120;$i<=240;$i=$i++){
> load filename=$i.trn
EXPORT:
Export Coord Frame = Global
Export File = $i.csv
Export Type = Generic
Export Units System = US Engineering
Location List = BladePre
Variable List = Pressure
END
>export
!}
#############################

Hi Pavitran,

It works perfectly for a single time step only! I am getting en error message as follows-

ERROR
Overwrite not allowed: 120.csv

It seems the loop is not working properly which is really weird. I am trying to solve it. Thanks for your help though. I really appreciate it.

Shafi

Not exactly sure what you are trying to doing. It seems you might accomplish this alot easier through a chart and export those values.

There is no reason to cycle through the *.trn files.

Ohh, I understand, thats a file of x,y,z and t. This could be a large set.
Looks like the file name isn't updating in the export. Try this (below script is written for use on C: drive but you can change it):

############################
COMMAND FILE:
CFX Post Version = 11.0
END

! for($i=120;$i<=240;$i=$i++){
> load filename=$i.trn
EXPORT:
Export Coord Frame = Global
Overwrite = True
Export File = junk.csv
Export Type = Generic
Export Units System = US Engineering
Location List = BladePre
Variable List = Pressure
END
>export

!rename("C:/Your_Location/junk.csv","C:/Your_Location/$i.csv");

!}
#############################

Hi shafiul
 

There is a problem in for loop, just change

$i=$i++ to just $i++.

Dear Pavitran,

Yes, it works! Thanks a lot for your generous help. But I am just wondering how can I learn this language? Is there any source that you can recommend me?

Thanks agian.

Shafiul

Dear Singer1812,

Thanks for your reply. I got it done.

Shafiul