That's certainly my first thought. If I can think of any other way I'll let you know.
Mark --- In [email protected], "Jason Birch" <[EMAIL PROTECTED]> wrote: > > Steve, > > You may be stuck splitting the calculations out into separate streams > and then using FeatureMergers to join the summed data back together with > the original polygon IDs. > > Jason > > -----Original Message----- > From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of > stevendorner > Sent: Monday, November 28, 2005 10:50 > To: [email protected] > Subject: [fme] Re: Summing Attributes for PointOnAreaOverlayer? > > > Mark, > > Thanks for the advice. That worked great except I have several fields > that I want to sum on. When I tried to add a second ListSummer for the > next attribute it actually creates new rows in my output with the > correct sum but the other field=zero. Is there some way to get a single > ListSummer to sum two fields? I'm close though, very close. > > Thanks, > Steve > > --- In [email protected], "mark2atsafe" <[EMAIL PROTECTED]> wrote: > > > > Hi Steve, > > Set a list name in the point-on-area settings dialog. That will > create > > a list of all points attached to the polygon. Then use a ListSummer > > transformer to add together the attribute values in that list. > > > > Hope this helps, > > > > Mark > > > > Mark Ireland, Product Support Engineer Safe Software Inc. Surrey, BC, > > CANADA [EMAIL PROTECTED] http://www.safe.com Solutions for Spatial Data > > Translation, Distribution and Access > > > > --- In [email protected], "stevendorner" <[EMAIL PROTECTED]> > wrote: > > > > > > > > > FME Gurus, > > > > > > I am relatively new to FME although I took the class last year. > I'm > > > having trouble with what may be a relatively simple operation. > > > Simply put, I am trying to do a point-on-poly overlay and sum up > > > attribute values of the points for each polygon feature. Each > > > polygon can have thousands of points inside it. I know how to > use > > > the PointOnAreaOverlayer to grab point attributes and apply them > to > > > the polygon attributes but and I need to sum the values, not > just > > > map them one to one. I can't seem to figure this out from > either my > > > class notes or the docs. If anybody out there has any advice I > > > would really appreciate it. > > > > > > Thanks! > > > > > > Steve Dorner > > > ESRI Professional Services > > > 8615 Westwood Center Drive > > > Vienna, VA 22182-2214 > > > Office: 703-506-9515 x8130 > > > Mobile: 703-629-4238 > > > [EMAIL PROTECTED] > > > > > > 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/
