This time, I created the floor plan without changing the 3D model used in the perspective view.
 The renderer does not recalculate the light probe with eevee.
 Set another camera for orthographic projection.
 Very simple Freestyle is added.
 Render with background transparency and place it as a background image on the camera set in  .
 Use the floor object to fill in dimension lines with measureIT.
 Write the dimension value and text with the text object.
It takes a bit of work, but it is very beautiful.