Adding/removing features to an existing Topology

[akatkov7]

Hi, thanks for the library! It's very helpful for reducing the size of GeoJSONs.

I was curious if there was a way for me to add/remove features from an existing Topology.

In my use case, I am converting a few hundred GeoJSON features to a Topology every X minutes per my cron job cadence. The number of features varies and when the number gets higher, the process gets a lot slower.

However, a large percent of these features would be the same from run to run.

So I was curious if it would be feasible to add a way to add or remove features to an existing Topology (which i could cache between runs) and it would be less compute intensive than recomputing with all of the features.

[mattijn]

Very interesting question! And very useful feature request. I think the first step would be to find out if there is any existing literature on this topic. Do you know some of this?

[akatkov7]

Sorry for the delayed response, but I'm unfamiliar with any literature on it.

[mattijn]

No problem. I had a quick scan and only found one that might be related here.

Event-driven Incremental Updating of Cadastral Spatial Database Considering Topological Integrity
Jun CHEN, Xiaoguang ZHOU, Zhilin LI
Page(s) 185-195
Conference Paper (PDF, 346 KB)