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Using transformers to modify data.

12,684 Posts
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12684 Posts

jochgemContributor

asked in Transformers

Executing Variable Setter and Variable Retriever in the right order

Hi there!Working with FME Desktop 16.1.2.1 in a rather complex FME Workspace I decided recently to reorganize the FME Workspace such that it would become a little less complex to maintain the Workspace. Certain attribute values, that were used in multiple occasions in different parts within the Workspace, were before distributed based on FeatureMergers based on common attributes and attribute values (tempid = 1 for all incoming features) and making use of AttributeKeepers to keep the amount of data processing small and let only those attributes through that are actually needed. In that case the order of adding attributes to features is defined and this works splendid (but makes the FME Workspace perhaps a little more complex than needed and less elegant to read).In order to simplify the Workspace I decided to use VariableSetters and VariableRetrievers throughout the Workspace such that less FeatureMergers and hence less connections are needed, simplifying the Workspace. Now I am experi

830

7 years ago

sonekarneelesh

asked in Transformers

GeoRSS Expert Needed

I have lots of GeoRSS Files and in these file there are some attributes. I want to convert these GeoRSS file to ESRI Shapefile. GeoRSS files Contain Some attributes in Coding. Just like this <ul> <li>objectid: 1.0000000000</li> <li>districtco: 01</li> <li>districtna: Kaniska</li> <li>shape_leng: 550660.0714570000</li> <li>shape_area: 6611.3038972100</li> </ul>I want This in Esri Shape File Attributes Like Thisobjectid districtco districtna shape_leng shape_area1.00000

720

7 years ago

randall_robie

asked in Transformers

100% Stacked Bar Chart

Is it possible for FME to create a 100% Stacked Bar Chart, given the following scenario?I have 7 years of roadway data (2010-2016)Each year contains a count of miles classified as Good, Fair, and Poor. For example:2010, Good = 1217 miles, Fair = 302 miles, Poor = 77 miles, Total Miles = 1596For the same year, the percentages are Good = 76%, Fair = 19%, Poor = 5%Can someone please point me in the right direction for depicting this as a 100% stacked bar chart for years 2010-2016?Thanks!!

170

7 years ago

danilo_fmeEvangelist

asked in Transformers

Create Buffer respecting Angle

Hi Team,I need to find the solution for my problem. My Workspace has two Source - Shapefiles: - Point - Batimetry The Shapefile Point has a Attribute that represent the angle value: ground = 256.2000122. Using the transformer AttributeCreator i have a +- 5 degrees tolerante on top the attribute ground:Result: graus_up: 261.2000122graus_down: 251.2000122I would like to create a buffer oriented the values: 251.20000 until 261.2000 from the point.After i need to Lines ( Source Batimetry ) in a within tis buffer. I didn't find a transformer that make this possible. Attached my template file. Thanks, - Danilo

120

7 years ago

isoldef

asked in Transformers

Using Neighbor Finder with condition (neighbor's attribute value > point's attribute value)

Hi all,I have a point feature class with an attribute of "Maximum Value". For each point I am trying to find the distance to the closest point that has a higher "Maximum Value". I can easily use the NeighborFinder to find the closest point if I didn't want to use this condition. I am having trouble integrating comparing attribute values with finding the closest neighbor. I tried looping through a custom transformer, but the fact that it is a blocking transformer is throwing me off there.I hope the collective FME hive can help!Thanks,Isolde

1160

7 years ago

anne_shanahan

asked in Transformers

Reading large dataset

Hi, I am trying to fine tune my model (taking 4-5 hours to run). When I look at the logs it seems to be taking along time to run some larger datasets thru the SpatialRelator. These are datasets that have been made from rasters. For my output, I simply only need to tag those that a spatially related with a new attribute so would like to dissolve and simplify the datasets prior to running thru SpatialRelator. I tested the dissolver and the Aggregator. The Dissolver takes too long. The Aggregator seems to work but the dataset is still hard to work with due to the number of vertices (see pic). I tried the AreaAmalgamator but it sends the output out the rejected port. Does anyone know the best way simplify a big dataset.

250

7 years ago

fmelizardContributor

asked in Transformers

Regarding profile name

Hi I have created an account in knowledge center using google account directly. Now it is displaying my google account as profile name. Suppose my google account is XYZ@gmail.com, so it shows XYZ as profile name. I want to change my profile name but can't see any option over there. Need a help. I have another question also. If I deactivate my account, can I use the same google account for creation of new account in future? Thanks in advance

7 years ago

osarhan

asked in Transformers

Simplifying a Table

Hi folks I have this table:and trying to simplify it so I can get to this:Any help greatly appreciated.Omar

165

7 years ago

andyew

asked in Transformers

Is there an option to turn off attribute sorting in attribute selector?

Folks,I've just gone to use a "Sorter" trasnformer to sort some data in a mapinfo table for processing. However upon opening the attribute selector the list of available columns is presented in alphabetical order. In many instances this would be great, but in this particular instance it's a true pain.I presume the Sorter works much like other query\\sorts where the logic is sort by "this" then by "this" then by "this" etc.In the case of my table I want to sort in the order of the columns as presented in the table. The issue is they are rather generic in name and the order isn't obvious in the naming even though regular, their order in the table does not follow this convention.In the image below the id is followed by start_equipment_id. There are additional columns but this gives you a good idea.Ironiclly I see the "sorted" check box which seems to imply that the default is "table structure order" but this is how th

100

7 years ago

rajibtechlabs

asked in Transformers

Convert Point into Line between two line

I have a Point Between Two Line , I need to Convert those point into Line of certain lenght

150

7 years ago

sani

asked in Transformers

Creating polygons from points.

Hello, There is a point data, in which there are many which have identical concatenated attribute value. Trying to create a polygon of such points which have the identical attribute values and finding the centroid. For which, the HullAccumulator (convex) was tried. However, It does create the polygons but not in the cases where there are two points with identical attribute value it doesn't. requirement being, All the points which have these identical values need to create their respective polygon. Regards.

5920

7 years ago

lifalin2016Contributor

asked in Transformers

Using the GUI_LINE_TABLE parameter type in FMX

Hi,I'm trying to build a custom (Python) transformer with a user defined "replacement" table.The GUI_LINE_TABLE parameter type are defined as such (using semi-colon to separate pairs, and colon to separate values):PARAMETER_NAME: REPL_LISTPARAMETER_TYPE: GUI_LINE_TABLE COL_DELIM::%ROW_DELIM:;%NO_LABEL%NO_MOVE%"Erstat dette"%"STRING_ENCODED_OR_ATTR:REQUESTOR REQUESTOR"%"Med dette"%"STRING_ENCODED_OR_ATTR:SUPPLIER SUPPLIER"PARAMETER_PROMPT: Enter values:PARAMETER_DEFAULT: If I set it up with this content:I get the following output:%U:<space>%U;%L2:%L1;test:.<comma><semicolon>:<u00e6><u00f8><u00e5><u00c6><u00d8><u00c5><solidus><backslash>Is there a comprehensive list anywhere describing all the possible "FME encodings" like "<space>" ?Cheers

7 years ago

aronContributor

asked in Transformers

Group polygons by area and delete the smaler ones

I have a file with buildings as polygons and am trying so simplify and convert these to centroids. I have Disolved and added a buffer. But after that I am stuck:A) I want to add a attribute where polygons larger than 400 m2 are categorised as "4", polygons between 400 and 200 are categorised as "3", and so on. How do I do this? (The AttributeMapper almost does this, but as far as I can see it does not work with operators, only hard numbers.)B) In the next step I want to check if any smaller polygons are touching a bigger one. Eg. If a polygon with the size 1,2 or 3 touches a 4 they get dropped. Same thing if a 1 or 2 touches a 3, and so on. Which transformers would accomplish this?C) At the end of it all I want to measure the angle between the first and second corner in each polygon and ad this as a rotation attribute. What is the best method to do this?Sorry for the barrage of questions...

390

7 years ago

edhere

asked in Transformers

RegEx help needed (clean all except latlongs)

Hi all,I'm am looking for some Regex help to clean up my workflow. I have used StringConcatenator to bring together latitude / longitude fields and to separate these with ", " (comma white space)Unfortunately my data also contained empty fields and text resulting in:, 51.50757358840452, 4.358557125886925aan, Alphen, Winterswijk The only data I want to keep are the valid latlongs in bold. Can you help me out with a regex string (to be used in StringReplacer) that cleans all except the valid latlongs?Best,Ed

7 years ago

danilo_fmeEvangelist

asked in Transformers

Calculate time point a - point b

Hello,I have a point shapefile and my goal is calculate the distance time In my workspace i used the transformer NeighborFinder to find the distance in meters between the features. Another information is the speed in KM / h to arrive point A until B. How can i calculate how many minutes my point A will arrive in point B. Informations: Distance: 443.81979158381 mSpeed = 2.778 KM - h Thanks, Danilo

320

7 years ago

samisnunuContributor

asked in Transformers

Python Scripted Parameter in Aggregator transformer not working

In my Aggregator transformer that I use to prepare and build a SQL query to next feed into SQLExecuter query, I want first to check if the primary key values are of type string in order to pad single quote for each value.. (example: value1, value2, value3, ..for numeric primary keys'value1','value2','value3', ..for string primary keys)So I chose to create a Scripted (Python) private parameter to check whether the primary key values of type string, then return a single quote as below: snglq= ","# Check if the primary key is string?if type(FME_MacroValues['SDE_PK']) == str: #then add a single quote snglq= "','"else: # no single quote snglq= ","return snglqAnd then assign value returned to the Separator Character box in Aggregator transformer, as shown below:But that's not working properly, always result in values with padded single quote, yet the primary key values are of type numeric!!What would be wrong here, please help

7 years ago

fjcharp

asked in Transformers

AttributeCreator and long list of attributes to expose

I use AttributeCreator to prepare a list of columns (A, B, C, D, etc..) for an Excel writer. My problem is that the list is 4000 items long. I have to manually expose every one of the column labels, which is not feasible. I have looked up and down and did not find a solution. Is there a way with PythonCaller to label a feature as exposed?

3310

7 years ago

steveway

asked in Transformers

How to add gml:id to a CityGML Polygon element

Hi,When writing CityGML, gml:ID is added to the surface feature (WallSurface, RoofSurface, GroundSurface) however, there is no ID written to the polygon of the surface. How can i create an attribute to set the gml:id of the polygon of the surface feature?Thanks,Steve

885

7 years ago

tomw202Participant

asked in Transformers

Using DSM and DTM to model features (buildings/trees etc)

Hi I have 2 datasets, a DTM (i.e the underlying ground model) and a DSM (the surface model). These are currently 1m spaced point features (with the same X,Y locations). I am looking to use the difference between the two models (i.e DSM elevation - DTM elevation) to build 3d models of a feature. These features may be buildings, trees, hedges etc.My current work flow is as following:Build 3D lines between the DSM and DTM point for a given X,Y, using a neighbor finder and line builder, and assign the line an IDFilter out lines with a length below 1m (we assume these are not of interest).In ArcScene, select a group of lines that represent a feature, e.g a house. give these lines a FeatureID.In FME split the lines back into DSM/DTM using a snipper.Use the TINGenerator, grouped by FeatureID to create a TIN of the DSM points.However from here I just cant figure out how to make "Walls" down to the DTM points at the bottom of the feature. I've tried using the hull of the DTM point

1380

7 years ago

lifalin2016Contributor

asked in Transformers

How to extract certain parts from path name ?

Hi,I'm looking for a best practice to extract parts of a path name.If I have a path: S:\\Miljø og teknik\\Svendborg Vand\\Anlæg vand\\Microstation\\Dokgraf dokumenter\\VandGraf\\vand_knude\\ULB00004\\Arbejdsrapport.pdfI need to extract the part starting with "VandGraf", i.e.: "VandGraf\\vand_knude\\ULB00004\\Arbejdsrapport.pdf" into one attribute, and the file name into another.What is the simplest way to accomplish this (without custom Python coding) ?Cheers.

1149

7 years ago

runnealsContributor

asked in Transformers

Hurricane Harvey Disaster Response

Hi FME'ers,I'm working with couple great communities of people who are working to maintain a database of people needing rescued for the Harvey relief efforts and working on other projects that are being released through the FEMA Geoplatform. I was wondering if any of you would be interested in helping out. So far it has been only me and 1 other newbie I got using FME, but I think it has been really advantageous to use it to help make data filtering much much faster than manually parsing through every record 1 by 1 to check for duplicates. Drop your email below (you can change permissions so only the original poster can see it) if you're interested and I'll get you added to the slack chat.I figured this is a great way for FME'ers to give back with their technical expertise!Thanks again!

7 years ago

fmelizardContributor

asked in Transformers

Why is my DWG to DWG translation writing out PNG files?

Why is my DWG to DWG translation writing out PNG files? I am not reading in any PNGs anywhere in my workspace - how can I disable this? Write Thumbnail Image is set to No.

140

7 years ago

steveway

asked in Transformers

When Writing to CityGML Format, HREF links to the surfaces (Roof, Wall, Ground) are not generated

Hi,I am trying to write a CityGML file using FME Desktop 2017. I can write the Roof, Ground and Wall surfaces features which contain the geometries, however, the "Building" featureclass does not contain the HREF links to those surfaces.This is easy to detect when using the inspector, as the Building featureclass does not show up as spatial.I have set gml_parent_id in the surface classes, to the value of gml_id used in the building class.

7 years ago

mark2atsafeSafer

asked in Transformers

Knowledge Center Updates and some Upcoming Work

Hello FME'ers,You might have noticed that we've just had an update to the knowledge centre backend today. The main improvement is this button:If you use that in a search then the results are saved. That means when you click on a result you get this:So to browse through a set of results you no longer need to use the back button on your browser and keep clicking back and forth, you can use these Previous/Next buttons instead.Also - I've noticed a few topic definitions that need cleaning up. Unfortunately when I clean up topics on a question, that question gets catapulted to the top of the list.So, I'm going to take time this weekend to clean up these topics. It means that old questions will appear back on the recent list, but I'm hoping that since it's a weekend, relatively few of you will be affected.If you've posted an important question and need to get it back on top of the list, just make a minor edit and you should see it back there.I should also mention

7 years ago

woltersContributor

asked in Transformers

Appending multiple overlapping multiband rasters

Hello everyone!I have several raster datasets, all with multiple bands (3-10 bands). I would like to combine these rasters in such a way that the bands of one raster is appended, e.g. a 5 band raster + a 7 band raster + a 3 band raster = a 15 band raster. Note that I have different rasters with different amounts of bands, and that I have no interest in merging/calculating statistics of the bands (this time). It would be nice to select the order of the rasters and corresponding bands, but it is not strictly speaking necessary. The equivalent ArcGIS function to this is 'composite bands' (http://pro.arcgis.com/en/pro-app/tool-reference/data-management/composite-bands.htm), with which you can add as many multiband rasters you like, in whatever order, no matter the raster resolution. How can I do this in FME?RasterMosaicker does not seem appropriate for this function, because it merges the different bands together rather than appending them RasterBandAdder also does not seem efficie

340

7 years ago

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