10-23-2010, 08:35 AM
Great idea biL. Since I am building some stuff from the prototype, I definitely need something like that.
Browsing through an old copy of RMC, I ran across an article on using perspective to help scale distances on photos. The further something is from us, the shorter it looks. Using "perspective lines", any verical distance can be scaled as long as one vertical dimension is known or assumed, such as an entry door to a house is typically 6' - 8" tall. The other vertical dimensions can be found by using a ratio of the distances on the photo. Horizontal distances also shrink, and can be approximated based on the ratio of vertical distances on the photo.
I am thinking that unless the photo is taken directly out from a corner, then each wall will have its own scaling factor. This could be found by using the corners of the building as long as they are all the same height in reality.
![[Image: image.php?album_id=166&image_id=3073]](http://www.the-gauge.net/forum/gallery/image.php?album_id=166&image_id=3073)
Browsing through an old copy of RMC, I ran across an article on using perspective to help scale distances on photos. The further something is from us, the shorter it looks. Using "perspective lines", any verical distance can be scaled as long as one vertical dimension is known or assumed, such as an entry door to a house is typically 6' - 8" tall. The other vertical dimensions can be found by using a ratio of the distances on the photo. Horizontal distances also shrink, and can be approximated based on the ratio of vertical distances on the photo.
I am thinking that unless the photo is taken directly out from a corner, then each wall will have its own scaling factor. This could be found by using the corners of the building as long as they are all the same height in reality.
Three Foot Rule In Effect At All Times