[Casa-framework] follow on to mp tool comments

[Lindsey Davis]

Hi,

Since I started a thread on multiple mp tools I thought I would tell people
where I ended up with this.

For what I want to do at present the 2 instances of casapy work best and
involve the least setup and typing.

However I thought I would try something like the following as well.

1. Create my own mp tool instances mpraw and mpred

2. Open the data sets
mpraw.open <raw_data_set>
mpred.open <reduced_data_set>

3. Set the plot options
mpraw.plotoptions subplot=211
mpred.plotoptions subplot=212

4. Set the data options
mpraw.setdata ...
mpred.setdata ...

5. Make the plots
mpraw.vistime ...
mpred.vistime ...

6. Repeat 5 for all plot types of interest. Reset data selections and
repeat 5 for all plots of interest.

7. Close the data sets.
mpraw.close
mpred.close

This should result in the minimum amount of setup and typing. It all
seems to work except step 6. If I try to follow vistime by vischannel
plots, keeping the plot setup and data selection the same, I get plotting
errors.  What seems to be happening is that the plot still thinks it
should have a time axis not a channel axis. Interestingly enough I can do
vischannels plots followed by a vistime plots, but the next vischannel plot
cause the same axis related error I saw the first time. From this I
conclude that this scheme should work in principal, but there is an axis
reset bug somewhere. Is this true or is this scheme flawed ?

By the way what started me off on this was 1) translating the pipeline user
test visibility plotting instructions from Glish to Casapy, 2) trying to
examine the raw and reduced pipeline test data sets with casapy in the
most efficient way.




                                                          Lindsey