I have a simple (10’ x 12’ shed roof) woodshed that I would like to photo match in order to build off it a car port.
I cannot imagine a good photo match of a rectangular structure involving less than four pictures. I took four pictures—clockwise—each from a successive corner of the shed. None of the photos were cropped.
Photo #1: I’ve done quite well in doing a photo match to photo #1 (no brainer). Positioned the axes origin (yellow square) as recommended in most photo match videos. Scaled to a spacing of two feet (all the measurements were great). Then drew and pulled a 3D model that accurately represented the shed.
Photo #2: Importing photo #2 went well, and realigning the axis required minimal work. I left the axes origin where I’d positioned it in photo #1. The model needed to be resized (click/move on an axis) in order to fit the photo, but it was a nice fit. [Going back to photo #1 confirmed that the model fit well.]
Photo #3: The import was straightforward; as was (very slightly) repositioning the (red, green) parallel axis lines. (To make the job easier I’d chalked marks around the shed). The axes origin (yellow square was positioned somewhere within the shed (indicating that it related to the bottom corner of the shed on the back corner (blind corner) of the shed. This time the shed model was the right shape (and the corner/sides pretty much lined up) but high (started above the bottom of the picture and extended that amount over the roof of the picture). All attempts to resize the model resulted in a model much too small to relate to the picture.
I doubt importing photo #4 is going to help, and can’t figure out what to do now. Something tells me that if there were the ability to (congruently) resize the photo I would be able to get the model to fit.
Photo #4: Nonetheless, I imported photo #4, repositioned the axes origin (to the location it was in photo #1); and aligned the red/green lines. The model was again the correct shape, but not the correct size.
Again, I think the problem could be solved by being able to resize photo#4.
What do you recommend I do?
Also, are there any SketchUp videos or tutorials that cover importing more than two photos of the same structure, and dealing with model resize problems particular to those photos?