Create A Cuboid Region of Interest
     
    
    Usage
    cuboid_roi(bvol, centroid, surround, fill = NULL, nonzero = FALSE)
 
    
    Arguments
- bvol
- an - NeuroVolor- NeuroSpaceinstance
 
- centroid
- the center of the cube in voxel coordinates 
- surround
- the number of voxels on either side of the central voxel. A - vectorof length 3.
 
- fill
- optional value(s) to assign to data slot. 
- nonzero
- keep only nonzero elements from - bvol. If- bvolis A- NeuroSpacethen this argument is ignored.
 
 
    
    Value
    An instance of class ROIVol representing the cuboid region of interest, containing the coordinates and values of voxels within the specified region.
     
    
    Examples
     sp1 <- NeuroSpace(c(10,10,10), c(1,1,1))
 cube <- cuboid_roi(sp1, c(5,5,5), 3)
 vox <- coords(cube)
 cube2 <- cuboid_roi(sp1, c(5,5,5), 3, fill=5)