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How to extract data from an anonymous strucure into a float array? [message #47894]

Fri, 17 March 2006 15:38

haili.wang
Messages: 1
Registered: March 2006

Junior Member

Hi IDL gurus,

I am new to the IDL world. Right now I am using DataMiner to get data
from a SQL server. After using the GetRecord method (e.g. I ran:
apdata=oRS->GetRecord() ), a record in the SQL table was in an
anonymous structure. Then, if I ran:

IDL> help, apdata,/structure

I will get the details of this structure like this:

** Structure <1724960>, 502 tags, length=2008, data length=2006,
refs=2:
AP_DATA_INDEX INT 22425
L4_AP_300_NM FLOAT 0.113780
L4_AP_301_NM FLOAT 0.108723
L4_AP_302_NM FLOAT 0.104307
......
......

I know it is easy to extract the filed names (the first column) to a
string array by:

names = TAG_NAME(apdata)

But the question is: is there a function to extract the data part (the
right column in the structure) into a FLOAT array?

Thanks for any hlep,
Hai-Li

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