Russell,
I think you can streamline your procedure a lot. What I will outline is for
people who do not have any app that would be of use (I am thinking to one in
particular that would split a polygon with a polyline).
Polyline is selected, buffer is created. I like to display the nodes. Snap
is on.
I draw a polygon following the center line and the side of the buffer I want
(seeing nodes is useful) filling the gaps at the ends of the polyline. I use
autotrace a lot and with 8 to 10 snaps the half buffer is created.
Select original buffer and delete it.
Table needs packing after that.
Jacques Paris
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================= original message ===============
Sent: April 13, 1999 6:25 PM
To: Dawn Hendrick; MapInfo Users
Subject: Re: MI One sided polyline buffering tool
....
Buffer the line
Select the buffer & go to node edit
Copy the section of the buffer region required (usually to a spare layer - I
often use the cosmetic layer for this)
You may need to do this in 2 bites if the start/end node of the region
falls in the portion you want
Copy the original polyline to the spare layer
Hide the original layer
Extent one of the two (or 3) polylines to meet the other at each end
Select all lines & combine
Convert to a region
Show the original layer
Delete the original buffer
Cut & paste new buffer back to the original layer
The method is a bit slow & cludgy but it does the trick
I'm open to suggestions for improvement because I seem to be doing this a
lot
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