If anyone wants to draw in axonometry, this may be very helpful. These transformations, if used on a square with it's side being "a" long, result in it to be transformed exactly to the shape of the base planes. You can group a design with a square, which contains it, and if you use the mentioned transformation values, it will turn the design to be on the xy, xz, yz base planes. In inkscape, this can make an accurate result, instead the previous method depicted on my previous upload with the transformation matrix values being used 2013 lazur urh Transformation parameters to map a square to the base planes of an axonometric projection with the axises projecting in directions alike