Hi List
This is something I want to get to grips with. I have two versions of a
Stops table: one in Visual Foxpro and the other in MI. SO, I have an
VFP "Manual" database and the MI graphics version. When I make changes
in either system I have the means to copy the update to the other
system.
Now, when I created the MI Stops table, I used the Stops' Eastings and
Northings values to create the points.
In my naiivity I assumed that moving a stop to a new co-ord (i.e.
changing the OBJ field) would reflect itself in new E & N. But no.
Changing the E & N in the manual VFP system, then copying over to the MI
data DOES reflect the change in the MI N & E values, but the stop stays
in the same place. i.e. the OBJ doesn't change.
When I look at the values stored in these fields I notice that E & N
fields -vs- X & Y points, returned by ObjectGeography(), bear no
resemblance, e.g.
Eastingss = 624640, Object X = 1.2607
Northings = 230917, Object Y = 51.9248
The map is based on British Co-ord system.
To the point:
What I want to be able to do is: if the E & N are changed manually,
then I want to see the stops move to a new locn. in MI. Conversely, If
I move a stop in MI, then I want its E & N to change and be detectable
in the manual system.
Can this be done and, if so, how?
'ppreciate it
Terry
