(Post-restored-by-MC) -- How to colour resolved line topology by boundary type (transform vs subduction) in GPlates 2.5?

This post was originally posted by a user named “marko”. The system detected “New user typed too fast“ and silenced the user. The user deleted the account by self later. I have restored the post here just in case marko’s question could be helpful for other users.

Hi,

I’m using GPlates 2.5 on Windows 11 and working with line topologies where a subduction zone intersects and consumes a ridge/transform system.

I have separate line features for:

  • transform faults

  • subduction zones

I would like the resolved topology segments to keep different colours, for example:

  • transform = green

  • subduction = blue

even after topology resolution.

I tried adding properties (e.g. Name = “transform” / “subduction”) to the original features and then building a line topology, but in Draw Style Settings I don’t see an option to colour by that property (no map values appear).

My questions are:

  1. What is the recommended workflow to tag different boundary types so the resolved topology preserves them?

  2. Which property should be used (gml:name, custom attribute, etc.)?

  3. How do I correctly colour a topology layer by feature type in GPlates 2.5?

If possible, I’d really appreciate a step-by-step explanation.

Thank you!