Generating rectangle centered by point in QGIS

Question

I have a layer which contains points. The layer has "height" and "width" attributes.

I need rectangles around those points, but a point should be in the center of the related rectangle whose height and width value comes from the point attributes.

Is there any tool?

Example data for three points:

height   width
20       12
6        10
4        14

Answer 1

Check the "Rectangles, Ovals, Diamonds" geoalgorithm in the QGIS's Processing Toolbox (Ctrl+Alt+T)

Answer 2

There is "Geometry by Expression" tool. You should use in a Projected Coordinate System.

• Select "Polygon" as "Output geometry type" option.

• Click "Expression" button (highlighted blue square)

• And paste the following expression

  make_rectangle_3points(
    make_point($x + "height"/2, $y + "width"/2),
    make_point($x - "height"/2, $y + "width"/2),
    make_point($x - "height"/2, $y - "width"/2)
  )
  

Result: