Dimitar/Mark Had a go with the VoronoiDiagrammer and it seems to work best although when I apply it to more feeders it starts to get messy - you are right Dimitar, the data has a lot of errors in it!
We have started drawing the polygons in Autocad but we have thousands of feeders to do so I was investigating a way to make the process a little easier. Thanks so much for your help guys! Best regards Louise --- In [email protected], "dimitar_kirchev" <[EMAIL PROTECTED]> wrote: > > Hi Louise > > Convex hulls don't look to suite your data set as you need concave > polygons. > I guess VoronoiDiagramer would fit better. > First create Voronoi polygons for all points and then combine them > (Aggregator) based on common attribute(s) for the feeder. > I've done such thing in MapInfo and MapBasic but never tried in FME > (still new to me) > > BTW: Are you sure your data is correct? I see a red point far inside > the green territory. > > One more note! If you need just to draw the polygons and you've > shown the whole dataset in the screen shot it might be easier to do > the drawing by hand (I mean in CAD) :| > Some times it's the fastest and easiest method unless you are well > advanced IT specialist. > > Dimitar > > > > --- In [email protected], "louise_cue" <[EMAIL PROTECTED]> wrote: > > > > Hi there > > > > I have a bunch of power points (points) which belong to several > > different electricity feeders. I am trying to create polygons > around > > power poles that are on the same feeder. The convex hull > accumulator > > transformer works okay, but because feeders are close to each > other > > and interlinked, the resulting polygons are overlapping. What I > > really want is a transformer that creates a polygon that closely > hugs > > the outer poles on the same feeder. > > > > After reading through past postings, I get the feeling that this > is > > not possible to do in FME but I just wanted to confirm. > > > > Any help would be appreciated. > > > > Best regards > > Louise > > Australia > > > Get the maximum benefit from your FME, FME Objects, or SpatialDirect via our Professional Services team. Visit www.safe.com/services for details. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/fme/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
