aha , I think I get it. basically the grouping thing is to be able to scale things into proportions and reach the exact measurements

I guess that if there's any rotation issues with the floor plan I can fix it in advance in the photo editor to avoid any further nuisances

thank you so much for your help,
John

hi,

I have this really low resolution image of a floorplan

I passed it through some photo processing with mockofun as it allowed me to remove the white areas, improve the contrast and then even transform it in a higher resolution PNG and vectorize it to a SVG

here's what I got:

and the SVG

questions are:

1. is it possible to add any of these images as reference images on the background to guide me when drawing the floor plan in sketchup?
2. which image should I use? is it possible to use a SVG as that can be enlarged without loosing quality

thanks,
John