Two different problems
1 - generating a “one-thick” mosaics
from a set of partially overlapping polygons
The principle I would use is simple but
must be carefully implemented:
-select first polygon and set target
-select all over remaining polygons and
split
-select all over poly
Alan,
I had a project to do something like this
and wrote a MapBasic program to do it (description below).
I would be happy to forward you the
source and or exe if you are interested.
Note that the program could take quite a
long time to run depending on the complexity of the table of
It could be done fairly easely with the help of a little SQL.
I have not the name of all function, because I use a french version of
MapInfo :-)
1- create a new table (test.tab) with 2 colomns ID an NB (both integer)
and in this ORDER...
2- select all objects in your original layer (I will cal
Alan Silvester wrote:
Dear List,
Does anybody know how I can work out how many polygons cover the same
area? I have a layer of polygons that overlap one another in various
places. I need to cookie cut them into one another so I am left with a
layer of smaller polygons and determine how man