Skip to main content
  • EN
Hi,

 

 

I'm trying to replicate a function in ArcGIS (Make Route Event Layer) in FME.  I have a series of polylines in a shape file, each with a unique identifying code, (e.g. DH, CL, etc.).  I have a spreadsheet with a list of features I want to show as points along the line strings as defined by a meterage value from the start of the line, 

 

 

e.g. Identifier (DH) & Meterage (15) - I want the dot to the plotted (with the relevant attributes) 15m along the line from the start of the line DH.

 

 

I can see transformers that plot points and split lines but only at specific intervals, not at attribute specified intervals.

 

 

Thanks.

 

 

Amit

 

 

Hi Amit,

 

 

I do this in a weird and wonderful way. See if it works for you.

 

 

I add an constant attribute value to the spreadsheet features (i.e. field join, value 1). I then do the same thing to the actual feature. Then I featuremerge then with a list, therefore getting one feature with all the spreadsheet values attached to it. 

 

 

I then explode the list, giving me a line feature for every spreadsheet row.

 

 

DistanceSnipper is used next to chop the line to the meterage specified.

 

 

Then use the coordinateextractore to pull out the last coordinate (-1). This is the X and Y we need for the point. So just use the 2d or 3dpointreplacer to create the point. 

 

 

Hopefully that make sense. Not sure if there is an easier way of doing it but that is what I did when I had a similar problem a few years ago.

 

 

Cheers,

 

Todd

 

 

Hi Amit,

 

 

Just read your question again and realised that you won't need to add a constant attribute because you already have an attribute that will work (e.g. DH, CL etc). So just ignore that part of my response at start at the featuremerger.

 

 

Cheers,

 

Todd
What about the DistanceMarker custom transfer in the FME Store under CustomTransformer_Linear_Referencing folder?
Folks, thanks for replies.  I ended up going to the dark-side and using ArcGIS which was incredibly fussy about the line geometry hence wanting to use FME!  I'll need to repeat the task down the road, so will keep a note of the posts and I'm going to put in a feature request too.

 

 

Thanks again.

Reply


Community Stats

30,159
Posts
114,479
Replies
37,803
Members
Terms & ConditionsCookie settings
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.