1

I have two layers of landmark:

  • 2019 version layer(Blue)
  • 2020 version layer(Purple)

2 Thailand landmark layers display

I want to know landmarks that are added and deleted in year 2020 and I see the landmarks that are added and deleted in year 2020 by order the layers.

Landmark data contents

How can I get the landmarks data contents that are added and deleted?

1 Answer 1

4

It's very simple

As you said we have two landmark layers

  1. 2019 version layer(Blue)
  2. 2020 version layer(Purple)

Please use Selection by location or locational Query

Step 1 : Select Feature from Target layer (2020 version layer(Purple)) where source Layer (2019 version layer(Blue)) AND Spatial Selection method for source layer (Such as are identical to source layer feature);

Step 2 : Select Feature from Target layer (2019 version layer(Blue) ) where source Layer (2020 version layer(Purple)) AND Spatial Selection method for source layer (Such as are identical to source layer feature);

Note : After selection Please export both results separately.

Step 1 Results will be Newly added points/Landmarks.

Step 2 Results will be Deleted Points/Landmarks.

2
  • Thank you for your help. I use Qgis 3.1.2. At Where the features (geometric predicate) check box selection,there are only intersect,contain,disjoint,equal,touch,overlap,are within and cross.
    – Yumi
    Jun 17, 2020 at 10:05
  • In QGIS, Please use the alternative option thank you. Jun 18, 2020 at 6:55

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.