def __init__(self,pt = None,curve = 0.0, xsize = 200.0, ysize = 200.0, xpixel_or_im = 256, ypixel = 256):
"""
Form the OpticalImage with either blank array of nmpy image array
param pt the plane point (default = None,(0,0,0))
param curve the curvature of the plane (taken as spherical)
param xsize the x size (default = 200)
param ysize the y size (default = 200)
param xpixel_or_im x-pixel size of image (default = 256) OR nmpy array of floats
"""
OpticalImage.__init__(self,pt,xsize,ysize,xpixel_or_im,ypixel)
SphericalSurface.__init__(self,pt,curve,math.sqrt(0.25*(xsize*xsize + ysize*ysize)))
def getSurfaceInteraction(self,r):
"""
Method to get back the surface interaction information for a ray
Returns the list
type: surface type
distance: distance from current ray position to surface
pos : Position, intration point with surface
norm: surface normal at that point
refrative : refrative index (if refracting surface)
This also add the ray intensity to the cloeset pixel
"""
info = SphericalSurface.getSurfaceInteraction(self,r)
# Return list of information
return SurfaceInteraction(self.type,d,pos,u,self.refractiveindex)
