Home/Blog /How do you know which Transformers to use!? There are so many! Part 1

How do you know which Transformers to use!? There are so many! Part 1

For a beginner FME user, with over 300 Transformers, finding the right Transformers to get the job done can seem like a daunting task. Even for more seasoned FME-ers, finding the right Transformers can still be challenging, and we might not be using the most efficient or effective ones for what we want to do.

As an FME trainer and consultant, I often hear comments such as, “But there are so many! I don’t know how I am ever going to be able to find the ones I need…” “That was so quick, how did you know what to use!?” There is an easy answer to that question: experience. The more you use the software, the easier it becomes. However, that response doesn’t really help when you are just starting out.

The following are some basic questions I ask myself when planning my workspace and deciding which transformers to use. In my next article, I’ll go through some options for applying the answers to these questions in the transformer selection process.

Do I want to transform the CONTENT or STRUCTURE of the data?

In other words, do I actually want to change the data itself or do I want to change the way it’s organized?

Is the change I want to make SPATIAL or ATTRIBUTE based? Do I need to change the actual geometry, or just the attributes associated with it?

Do I need to compare different datasets with each other?

Perhaps I want to generate statistics about my dataset, or maybe I need to merge two datasets (or more!) together.

Do I need to filter data out of my dataset?

Maybe I need to separate my data into categories and apply different transformations to each one; or maybe I only need to generate a report about data since 2012…

What kind of data am I working with? What data types?

Am I working with a particular kind of data? 3D? XML? Database? Point Cloud?

That's it! If you want to know more about the whole process of selecting a Transformer, I invite you to contact me.

Allison Hughes

Consultant in Geomatics

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