How to convert prescaled to postscaled values with custom scale?

Hi,
Is there any way to convert between prescaled and postscaled values using an arbitrary custom scale (i.e. linear, map, polynomial, or table)?
I'm trying to write a driver which allows users to choose an arbitrary (previously defined) custom scale, but I need to know within the program the values which are actually output/input, which means I need a way of determining the max/min values for an arbitrary custom scale based on the known unscaled max/min. Surely there is a NI-DAQ internal function which accomplishes this task, but there doesn't seem to be a VI for it.
Any ideas?
-Lee
Labview version 9.0f3

Dustin,
Thanks again for your suggestion. I'm sure your example will be useful to others, but I'm afraid it doesn't actually address my question. I guess I'm not being very clear.
The point is that I want to keep track of the values currently being sourced on my analog output channels. In my application, users can specify max and min values for the sources, which may reflect the hardware limits of the device (e.g. +/-10V in my case) or a more constrained set of software limits determined by whatever the channel is driving. If the user tries to write a value outside this range, it will be coerced and the limiting value will be sourced instead (without generating an error in this case). It is then this limiting value which should be saved in output memory, rather than the out-of-range value requested, to avoid users believing they have sourced a value they have not.
If I then allow users to choose a custom scale, then the requested values are given in scaled units, while the device max and min are still unscaled (volts). This means I need a way to convert the unscaled limits to scaled limits based on an arbitrary custom scale in order to accomplish the procedure described above. I have attached an example VI that handles linear scales only. Obviously this could be extended by adding a case structure to handle the other types of scales, but it just seemed a bit silly to me that there is no VI to accomplish this scaling already, given that it most certainly happens inside the various NI-DAQmx routines that accept custom scales.
Much of this would also be easier if it were possible to 'read back' the currently sourced value from DAQ output channels, so I wouldn't have to fake it by keeping a local memory of them, but that is a separate issue.
-Lee
Attachments:
ApplyScaledLimitsExample.vi ‏23 KB

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Hi All,
I want to display colon separated values from a column, in a multi row in report.
For example i have a column1 in a table with value 'A:B:C' , column2 has value '1'.
i want to show in a report three rows using these two columns like
column1 column2
A 1
B 1
C 1

Here's one way:
SQL> create table test (col1 varchar2(20), col2 number);
Table created.
SQL> insert all
2    into test values ('A:B:C', 1)
3    into test values ('Dg:Ezs', 2)
4 select * from dual;
2 rows created.
SQL> select
2    t.col2,
3    regexp_substr(t.col1, '\w+', 1, t2.column_value) c1
4 from test t,
5    table(cast(multiset(select level
6                        from dual
7                        connect by level <= length(t.col1) - length(replace(t.col1, ':', '')) + 1
8                       ) as sys.odcinumberlist )) t2
9 order by 2, 1;
      COL2 C1
         1 A
         1 B
         1 C
         2 Dg
         2 Ezs
SQL>Edited by: Littlefoot on Jan 31, 2012 10:13 AM

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