[Radiance-general] How to parse room dimensions from .rad model ?

[Greg Ward]

The size returned by "getinfo -d octree" is the cube side length, which is of course the same in all three dimensions.

-Greg

> From: Vaib <vaibhavjain.co at gmail.com>
> Date: February 12, 2014 2:08:22 PM PST
> 
> getbbox will solve the issue at hand. Rooms/scenes are mostly right rectangular prism; and also they are normally kept aligned with principal axes, only the sky (if with sun) is rotated to change the North. I guess, to rotate the sky instead of the scene must be preferred for modeling architectural scenes in Radiance. 
> 
> Further, just out of curiosity: getinfo -d foo.oct gives [Xmin, Ymin, Zmin, Size] of the bounding cube (I guess cuboid too?). I couldn't figure what does Size mean? Is it Xmax or Y/Zmax?
> 
> Thank you for your time!  
> 
> Best regards,
> Vaib
> 
> 
> On 7 February 2014 18:47, Greg Ward <gregoryjward at gmail.com> wrote:
> Yes, let's keep this on the general mailing list.  The dev list is primarily for development/debugging issues.
> 
> The getbbox command will give you a tight box (right rectangular prism) on the entire scene, whereas oconv will report an enclosing cube.  However, this won't help you much if your space is non-rectangular or not axis-aligned.
> 
> A general tool for extracting the walls from a room is technically the 3-D convex hull problem.  There are programs out there to compute this, but I haven't played with them.
> 
> Best,
> -Greg
> 
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