Tulou and Fortress (Part 9) - Roofing the Shrine

I've actually done a decent amount of work on the shrine since my last post about it. However, in the meantime I've been in hospital and there have been a few other issues... So, where were we.. Oh... that's right. We've got the shape of the stonework building. Now to put a roof on it. We're doing that from pieces of wood to build a structure that can be removed as needed. First step is getting the angles. I could do this with trigonometry, calculations on a page, or tricks with compasses, but I'm just going to lay the pieces of wood against the existing structure, line them up and draw the bits I need. With the two pieces overlaid, I get where the shapes will be fitting together and identify where I'll need to be cutting. I've done some rough sketches and have got a good idea of how I want the general shape to look, but I'm allowing room for evolution and unexpected elements to guide the design as necessary. Needing some cross beams for structure, I...