column configuration and queries

[Dave Matthews]

Hi Janet,

> From: janety at u.washington.edu (janety)
> Date: 10 Mar 2000 00:38:24 -0000
> 
> Am I not getting the
> BACs displayed as I haven't specified a map position for them? My
> Chrom_bands have a map position (Ends Left and Right) - shouldn't the
> BAC acquire these positions via the Positive magic tag?

I think this may be the problem.  Anything on the map must have its own
Map Position data.  Doesn't inherit it via the Positive tag.  

I believe Positive/Negative is for the purpose of visually checking
(colors) whether the assertion of positivity/negativity is consistent with
the actual position data.

There's some info about this at
http://ars-genome.cornell.edu/acedocs/magic/gmap.html

- Dave
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