Transformers

Hello, I have a workbench with the following elements : 1 Excel writer based on a template file, and with option “Overwrite Existing File” set to Yes (mandatory to use a template). 8 Feature types writing to 8 different sheets of the same Excel file. As I’ve seen in other posts, this configuration should work. However, when I run the workbench, only one sheet is filled in the final excel file. If I run the writer Feature Types one by one, they do write their own sheet and remove the others. Can someone tell me what is wrong in this configuration ? I use FME Desktop 2021.2.

Hello, does anyone know how to configure the Clipper function to split planes with 3D lines, which these planes intersect? The one input is a set of 3D planes and a another input is set of 3D lines.

Hey All I have a process with the general workflow of create an SQLite database (FeatureWriter) and then run schema/index/relationship queries against it using an SQLExecutor. Initially, this was built in 2020.2 and works well (see example attached). However from ~2023.2 onwards, this logic no longer works. I get the following error when running in version newer than 2023 (including the latest 2025 releases) SQLite Reader: Failed to read a feature from the database. SQLite3 Engine error: 'attempt to write a readonly database' Looking at the database, it’s not read only, I can read/write to it with other programs. I’ve also tried it when FME is running as administrator and writing out to different folder locations. I can replace the SQLExecutor with a PythonCaller and it works fine. It also works fine when the SQL is included in the writer to run after writing. In some instances, I can using the run after writing approach, but in others I do need to do standalone calls to the db to mani

In FME 2025.0, it was mentioned that the IFC API Reader was updated to support reading IfcOpeningElement. However, in the latest version, 2025.0.3, the IfcOpeningElement feature still cannot be read. No matter what reader parameter options I adjust, it does not work. I have tried checking or unchecking the "Advanced - Subtract Opening Geometry" option in the reader settings, but that didn’t solve the issue. I have also tested several IFC versions, including IFC 2x3, IFC4, and IFC4x3_ADD2, but the IfcOpeningElement is missing in all of them. Is there something I might have missed?

I have a road centerline dataset and RIF network data (one file per year) that includes from_dfo, to_dfo, and ria_rte_id. There are no common fields between the datasets. I’ve already done a manual match for 2022, where I assigned the starting and ending dfo values (from_dfo, to_dfo) from the RIF layer to each centerline segment — not the in-between segments, just the overall start and end for the full centerline geometry. Now, I’d like to automate this for other years (e.g., 2021–2017, 2024). My requirements are: Only extract the overall start and end DFO values for each centerline segment. One centerline may span multiple RIF segments, so I want the minimum from_dfo and maximum to_dfo from intersecting RIF features. There are no shared IDs, so I assume the match must be based on spatial overlap. Is there an efficient way to do this in FME, using spatial join and aggregation (min/max)? Any recommended transformers or workspace suggestion? Thanks in advance! herewith I have attached th

I’m exporting LoD 3 models from FME to CityGML and the files blow up in size. FME writes every Appearance on each triangle and also makes a separate position list for each triangle, everything becomes separate XML elements, so the markup absolutely dominates the file. I think CityGML should be able to store things more compactly at the object level, but I don’t see a way to make FME do that automatically. Every triangle whould not need its own position list right? I have thome different thoughts on the matter: Can FME group or merge geometries/appearances to cut down the markup? Can ImplicitGeometry be used effectively without creating a complex monster workspace? Is CityJSON fundamentally a better route? (I’ve heard numbers around ≈ 1/6 of the file size.) Are there external tools that post-optimize a CityGML without losing semantics? Concrete tips, transformer setups, or example workspaces are very welcome.

Hi Community,I'm working with FME 2023 and I need to snap these purple points to the closest locations along the yellow polyline. What's the best way to do this?How do I use the Snapper transformer properly in this case?Could you please share an example workspace?I've attached the relevant data—thanks in advance for your help!

I have a process in FME and I want to send an email with the Emailer transformer at the end. I've already written in the email body the data I want to appear in the email, but the problem is that I want to send it in plain text format and not in HTML. The Emailer transformer always wraps my text in HTML, even though I already changed it to FME's format; it seems that every time I exit the transformer to run the process, it doesn't save the text settings in the transformer. Does anyone know how to change this?

Hi FME Community We have a dynamic FME workbench which iterates through 89 datasets in an Oracle Database and inserts all records into datasets in a SQL Database. Some of the datasets are large (over 4 million records) and the whole process for truncate & load can take over 24 hours to run. We are looking for ways to improve the speed of this process. We are currently using a feature reader to get the Oracle features, then using a few transformers to clean up the data (i.e. in case there are multiple geometries), then using a feature writer to insert the records into the SQL database. How can we speed up and/or optimize this process? Is there a way to use a SQL Executor to improve the process?

Hi Community, I’ve developed a workflow that enables me to connect to an external SFTP server and download all contents from a specified folder. I followed the guidance provided in the following post: The workflow functions well for a single folder. However, the SFTP directory structure includes multiple nested subfolders. I now need to enhance the automation to recursively traverse these subfolders. Please see the structure example below. Additionally, the SFTP contains files in various formats. To handle this, I plan to use multiple StringSearcher transformers—one for each file type (e.g., .tiff, .asci, .las). My challenge is ensuring that FME iterates through all subfolders to identify and process the relevant files. Could anyone advise on how to configure FME to recursively search through subfolders and apply the appropriate filters? Many thanks in advance!

What is the best way to extract the path_modified_date, path_created_date, and path_accessed_date for files in a folder (these are shapefiles and zip file)? I ran the Directory and File Pathnames Reader, and it shows these attributes as missing. Is there a transformer I need to use after this Reader to extract this information?

I have this line (the green one): And I want to calculate the shortest path from the start of the line to its end across the network (the violet one). How can I do it? What is it the right way to do it? How can I set the parameters of the “ShortestPathFinder”? attached files!Tnks

Hi everyone, Brand new to FME (ArcGIS Interoperability) - like 6 hours into it. I have a process in ArcGIS Pro that I’m trying to replicate in FME. It starts with a one to many spatial join where I also keep all target features. I have parcel data (Target) that I want to join to address points. Multple address points can sit on a single parcel (think apartments and duplexes), also 1 address point can be snapped to multple parcels (think of a property owner that also owns the adjoining lot. I am trying to create a layer : that will duplicate the parcel for every time an address intersects with it - 5 apartments on one parcel will produce 5 stacked parcels If an address is snapped on the edge of two parcels, both output parcels will inherit the attributes of the address point If a parcel has no address, it will still be included in the output. This is very simple in ArcPro with a one to many spatial join set to keep all target features But I’ve been struggling for hours trying to get thi

Hello everyone, I have a column with output that changes depending on different input. Ideally, I would like to populate a published parameter (Choice) based on the output of that column, so then a user can click on a value of that choice list on FME Server in let's say a workspace app. Does anyone know how to dynamically fill in a choice list based on the output of a column?

Hi community, does anyone know how to find these points using NeighborFinder/VertexCreator and then create a line with LineBuilder? My goal is to find the shortest route between the "common" points of these two road networks (existing vs planned).

Hello together (and thanks for your help) I’m testing my 2022.2 workbenches in 2024.2 Every single workbench generates an error when having a testfilter in it: Cannot have multiple factories with the same name. Multiple factories were assigned the name 'BufferRuler_4_TestFilter' The testfilter itself is not filled anymore. Like that it looks in 2022.2: This is 2024.2: Any suggestion anyone? Thanks in advance, Hannes

Can FME create folders in an on-prem Sharepoint Library? I’m successfully connecting to the library using the Sharepoint List type (Reader and Writer), and looking at written data I can see an existing folder, but I can’t use the writer to create folders.

Hello, I am currently working with some database PostGIS rasters and wanted to import some into FME 2024.1, using a filter to only select 2 out of 11030.To do so, I tried both a SQL Executor and a FeatureReader (as both enables PostGIS raster reading).The SQL Executor filters the rasters correctly but doesn’t create the geometry and returns an error in the log file.The FeatureReader loads the 11030 rasters without filtering, suggesting a problem with the “WHERE clause”. I tried the same thing using FME 2023.1 and the SQL Executor is working under this version. I am wondering if there is a bug in the FME 2024.1 version.The problem was the same for the Feature Reader.A colleague said that the Feature Reader outputs everything as well in previous versions of FME (2022.2 and 2021.1). Do you know when the FME 2024.1 bug will be corrected?We are linking our work with ArcPro and we know we will have to use FME 2024. I am enclosing a share folder with the different logs (as txt) and the 2 work

I’ve tried multiple times to read gml file with feature reader or import that into the workspace using reader. I tried with multiple settings but failed. The gml file structure seems ok as it is loaded into old QGIS without any problems. Any advises or tips how to handle such files are welcome.

Error: I have a workflow using a generic reader and it give me below warning: 2022-03-10 22:07:41| 135.3| 0.3|WARN |Detected 2600000 unique Attribute Names strings in the translation. Several unique names may result from operations like list attribute creation or feature type fanout. Reducing the number of unique names may improve translation performance and reduce memory usage any idea what the reason is?

Hey all, After upgrading from the 2024 to 2025 version, I noticed my workbench break. After doing some investigating I noticed that the PointOnAreaOverlayer transformer handles attributes differently. On the 2024 version the attributes of joined datasets would come through as ‘exposed’ attributes. In the 2025 version, these attributes were pushed into the unexposed attributes: Is this by design? Why the change? The properties of the transformer are exactly the same between the two versions. It isn’t the end of the world as I can use the attribute exposer to make it work. I was just also wondering is it normal that workbenches may break after major release changes? As this has now occurred after each last 2 major changes.

Hello,I'm working on an electrical network with substations and feeders.I want to assign a number to each feeder using NetworkTopologyCalculator, grouped by substation name. What I get What I want to achieve Many thanks in advance

Dear All, We need to convert TAB files that contain annotations similar to the following into a SQL Server spatial table with point geometry and an attribute to represent the annotation I have created the following workbench but it does not update the “dimention” attribute with the annotation text available in the MapInfo TAB file Output

In FME version 2023.1. We can keep the attribute field order after schema scanner for most of dataset. But for the attached dataset, we can't keep the attribute field order after schema scanner. Is any problem in my dataset? The fmw is attached also Thanks

Good day Safers, I’m cutting my teeth on the new DocumentPDF Writer in FME 2025.1 Trying to set up a “Ledger” (17x11 inches) page in the styler https://docs.safe.com/fme/html/FME-Form-Documentation/FME-Transformers/Transformers/documentpdfstyler-pkg.htm Not really clear how to do this with the Page Properties. I know this is a work in progress so hopefully this can be worked out. Please advise. Best, Reed