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enter image description here

I am pretty new to QGIS and was hoping some one could point me on how to put 3d spikes on to my 2d map? I have lat, long data and a value (lets say population] for each of the record. I am trying to map the population as a 3d spike.

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    That map isn't 2D. In fact it's not even a map. What is wrong with simply colouring your map? – Erik Feb 5 at 13:29
  • I got this image off internet.I am having a normal 2d layer -just trying to put vertical spike (3d) instead of a point to show the population – user12229564 Feb 5 at 13:42
  • I am Environmentist, how can I use above application in my field. – Kiran Feb 6 at 14:57
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Qgis2threejs would be possible solution.

Open your modules manager, click "all" and find Qgis2threejs. Install it and a button of this module should appear on tools panel.

enter image description here

Next, prepare your point layer. It should contain a decimal field with values you want spikes to have heights.

Place point layer in a window with an extent you want to see further.

Open Qgis2threejs:

  1. Put a tick on a "Flat Plane"
  2. Put a tick on point layer
  3. Double click on a point layer and set your properties:

    • Object type: Cone

    • Style - Height: under "Expression" open combobox and select field containing your decimal values.

enter image description here

You can also increase height with math expressions. Radius and other parameters also can be set. Here is a brief look:

enter image description here

Hope it helps!

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