Directly after this I have a TestFillter setup as follows
IF @Value(_count) >= @Value(_num_tiles) DONE
Else If @Evaluate((@Value(_count))%10) = 0 SEND
Else IGNORE
well, what happens is that I get an item on the SEND port every ten features,
But I never get the DONE item.
What gives?
What kind of value does "_num_tiles" contain?
Takashi
try inserting an inspection point (a fantastic tool for debugging) just before the TestFilter so that you can pause and inspect the features as they enter. Pay particular attention to the values of "_count" and "_num_tiles" to check that they are always present and always contain a numeric value.
David
Programlogically it seems to me that the values, wich are belonging to the same feature (if im reading this right) always are probably equal.
You count the tiles, and prduce the num_tiles feature....is'nt that kinda the same?
So it will never end. Even whne processing the features should have been ready...the values wil always be equal.
the DONE and IF are superfluos.
You get the same result by just testing on
@Evaluate((@Value(_count))%10) = 0
Let me give some more info, since I see everyone is trying to help, but we don't have an answer yet.
_num_tiles is a new feature in the WebMapTiler for FME2014. I asked for it and Dave C. added it! The WebMapTiler takes a Raster (geocoded) and divides it up into many 256x256 PNG or JPG files (an image pyramid). In my case. I wanted to know at the start how many there were going to be generated. And then I also a havve a COUNTER transform to count the number of features coming out.
Every mod 10 items. I want to send a HTTP GET (REST) message to a server saying how things are going, and then when it is all done (which might not be a MOD 10 value) it sends a DONE signal to the server.
OK, so the Inspector says all is going well, I can see the count increasing and the value of _num_tiles is fine. If I take out the TESTFILTER, then it will send the message every feature.
So now I know the problem is with the syntax of the filter in the TESTFILTER.
Does that clarify?
pI have had this problem with the TestFilter before, probably relates to @Value() or quoting, or some other thing at the Python level.
i.e. "@Value(_count) >= @Value(_num_tiles)" will be always false. Did you check actual value of "_num_tiles" ?
I did try making the test for _num_tiles-1000 but that also does not work, and I know that the count goes way beyond that. So I clearly need help on the python syntax in the if,then,else if. Which was my original question.
Since the PythonCaller cannot be appended output ports, it will not behave exact same as the TestFilter. But it can append new attributes to the input feature depending on the condition. For example: ----- # Assume "_num_tiles" and "_count" always contain integer. import fmeobjects def processFeature(feature): num_tiles = int(feature.getAttribute('_num_tiles')) count = int(feature.getAttribute('_count')) job = 'IGNORE' if num_tiles <= count: job = 'DONE' elif count % 10 == 0: job = 'SEND' feature.setAttribute('_job', job) ----- A PythonCaller with this script appends an attribute named "_job" to each input feature; value of "_job" will be "DONE", "SEND" or "IGNORE". Specify "_job" to "Attributes To Expose" on the PytonCaller parameter settings, then you can branch the process according to its value.
I needed to jump to FME2014, so I am missing the "OR" in the annotation, but believe me, it has PASS Criteria of "One Test (OR)". The screen shot is the same as yours. I submitted a help request to SAFE (we are under maintenance).
https://www.dropbox.com/s/srcldlp2lrclmkf/FME-TestFilter.jpg