The layers toolbar can be accessed by pressing the layers icon in the bottom right corner:

It lets you completely customize your visualization by hiding or showing certain parts of it. We will briefly discuss the most interesting ones below:

Tags: Height

You can show the height of your tags on the visualization (= the z-coordinate) by enabling the Height layer:

This is only really useful if you have a 3D system. If you have a 2.5D system then this will just show the height that you’ve set your tags to in the positioning settings.

Anchors: HDOP and Planning: HDOP

The Dilution of Precision (DOP)1 is a measure for the (expected) quality of positions, based on the geometry of the anchors used to compute the positions.

The Horizontal Dilution of Precision (HDOP) shows you the quality of positions you can expect in the xy-plane at a certain height. The height for which the HDOP is shown can be controlled with the HDOP height slider:

If you have a 2.5D system, then you will be able to set the HDOP height to the heights of your tags as specified in your positioning profiles. E.g. if you have:

  • A positioning profile with dimension 2.5D and tag height set to 1000 mm
  • A positioning profile with dimension 2.5D and tag height set to 10000 mm

Then the HDOP height slider will look like the one below and you will only be able to set the HDOP height to 1 m and 10 m.

If you have a 3D system, or a mixed system (2.5D and 3D), then you will be able to freely set the height. The heights specified in your 2.5D positioning profiles, and the min and max heights specified in your 3D positioning profiles, will still be shown on the HDOP height slider for ease of use. E.g. if you have:

  • A positioning profile with dimension 2.5D and tag height set to 1000 mm
  • A positioning profile with dimension 2.5D and tag height set to 10000 mm
  • A positioning profile with dimension 3D, min height set to -10000 mm and max height set to 25000 mm

Then the HDOP height slider will look like the one below and you will be able to set the HDOP height to anything.


1 More info about DOP: https://www.youtube.com/watch?v=h1jXqTRto1Q. This lecture talks about the DOP in GPS systems, but it is also applicable for the Pozyx system by replacing GPS satellites with anchors.