Phil,
If it is not unrealistic from a data perspective, you may get a better
result if you overlay the nodes of the target object to the splitting
object first. I am not sure what the effect is caused by, but have seem
it myself when splitting one of two adjoining polygons, and then the two
polygons not adjoining correctly anymore. I needed to also insert a node
in the adjoining (unsplit) polygon as well. It may be something to do
with projections and where MI projects the intersection to be from two
differnt nodes, and how this fits in with the line. Not quite sure.
r
On Fri, 29 Jul 2005 16:31:52 +0100, Broggio, Phil
<[EMAIL PROTECTED]> wrote:
Has anyone come across a potential bug in MapInfo when splitting or
erasing polygons?
We seem to be getting very small overlaps or gaps when using one polygon
to split/erase another. This only seems to happen if the erase creates
an
object with two polygons or more per row. The width of these is very
small
about 0.00001m but big enough to register.
It seems that the the program isn't snapping exactly to the edges of the
polygon used to split or erase.
Any thoughts gratefully received.
Phil Broggio
Systems and Application Engineer
Network Performance
Southern Water
Tel : 01273 210626
E Mail : [EMAIL PROTECTED]
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