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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?

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1 Answer 1

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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.

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  • 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.
    – Umair Asghar
    Jun 18, 2020 at 6:55

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