Thanks JD, You can attach it to any email you send to the group or, if you use the web interface, there is a Files section you can add it to.
Since you sent it to me I've put it in the files section, but also posted it to a page on fmepedia, with the description you gave... http://www.fmepedia.com/index.php/Sandbox Mark --- In [email protected], "jamison_leach" <[EMAIL PROTECTED]> wrote: > > Good afternoon, > > I've come up with a graphic with annotation to illustrate this > better, but how can I attach it to post in this forum? > > Regards, > JD > > > --- In [email protected], "mark2atsafe" <mark.ireland@> wrote: > > > > Hi J.D., > > I'm having trouble visualising this one. Can you run up a quick > > sketched image to illustrate what you mean? > > > > I'm thinking that you must also be using the 2DPointAdder to add the > > point onto the modified line when you've attached the coord values - > > else those values wouldn't do anything. > > > > At that point I'd think it depends on the direction of each line > > relative to each other. ie if they run in the same direction then the > > start point of the modified line would be the same as the start of the > > unmodified line (because you've copied it from one to the other) > > giving a distance value of 0 - and the same with the end point. > > > > If they run in opposite directions then the start/end points would be > > different, so it wouldn't be 0, but you'd still get the same value for > > each (because each measurement is the same, just in different > directions). > > > > But like I said, I can't quite visualize this, and might have it wrong! > > > > Regards, > > > > Mark > > > > Mark Ireland, Senior Product Specialist > > Safe Software Inc. Surrey, BC, CANADA > > support@ http://www.safe.com > > Solutions for Spatial Data Translation, Distribution and Access > > > > --- In [email protected], "jamison_leach" <hemsidan@> wrote: > > > > > > Good morning, > > > > > > I have a Workbench file that currently does the following: > > > > > > 1. uses CoordinateFetcher to retrieve the start and end points of > > > lines. > > > 2. merges the start/end point coordinates from these lines onto > > > spatially modified versions of the same lines (using FeatureMerger > > > with Merge Type 'Attributes Only' and Join Attributes set for a common > > > field). > > > 3. calculates the distance from the start point of each modified > > > line to both the start and end points of the unmodified line > > > (Literally, I suppose, LengthToPointCalculator doesn't use the > > > original line's start and end point coordinates for the distance > > > calculation, but uses the points on the modified line closest to the > > > original line's start and end points). > > > > > > So ultimately, this Workbench file should provide me with two > > > distances, both calculated from the start point of the modified line: > > > 1. To the point on the modified line closest to the original > > > line's start point > > > 1. To the point on the modified line closest to the original > > > line's end point. > > > > > > > > > I have run this process on certain files and it seems to work fine. > > > However, with the latest set of files I ran, most of the distances do > > > not appear to be correct. The coordinates of the original line's start > > > and end points look good coming out of CoordinateFetcher, but when > > > LengthToPointCalculator estimates their distance from the modified > > > line's start point, the two distances come up equal, either as '0' or > > > a non-zero, but still equal value. If I'm thinking correctly, the > > > original line would usually have to start and end at the same point > > > for both distances to be the same, but the start and end points are > > > very different. > > > > > > In other cases, the two distances appear to be correct, or at least > > > not the same as each other. > > > > > > Does anyone have any insight on this? Am I overlooking something? > > > > > > Many thanks, > > > J.D. Leach > > > U.S. Census Bureau > > > > > > For insights into what's up at Safe Software and what's on the development horizon, visit Safe's blog at spatial-etl.blogspot.com. Love FME? Then open your diary to March 6-7, 2008 and write this... "Second Worldwide FME User Conference - Must Attend!" See http://www.safe.com/company/fmeuc2008/index.php for more details. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/fme/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/fme/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> 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/
