Selecting feature

[Edwin Humphries]

Hi all,

I'm having a devil of a time with this. We received layer data from a consultant botanist, outlining vegetation zones, many of which were just plain wrong, and I've been given the task of working on corrections. An example is that there were car parks and similar items included in the vegetation zones, which obviously had to be removed. 

My current challenge is that one area (identified in the picture below with the cyan arrow) is categorised as Exotic Vegetation/Pinus radiata, but should actually be categorised as Artificial Wetland. But when I select that feature, all other features categorised as Exotic Vegetation/Pinus radiata get selected with it (as shown in yellow), and so I can't change its category, or delete just that feature and recreate it as a wetland. 

Also, the attribute table shows only 13 features, one for each vegetation category (and one for the other Artificial Wetland I created. 

Can anyone guide me as to what is going on, and how to resolve it?

[John Bryant]

Hi Edwin, looks like your features are multipolygons, where each feature can be composed of one or more separate geometries (parts). To change attributes for one of those parts, you'll need to break it out into a separate feature.

In an editing session, you can select the feature and use the "Multipart to Singleparts" tool - this will break each part into a separate feature, so you can modify the attributes separately.

 

Cheers

John

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[Edwin Humphries]

John,

Thank you for that - it worked fine.

I had visions of having to recreate every feature onto a new layer!

[Edwin Humphries]

John,

Thank you for that - it worked fine.

I had visions of having to recreate every feature onto a new layer!

On Friday, 2 May 2025 at 11:07:42 UTC+10 John Bryant wrote: