Create Split Image

Usage

giplt create_split_image.py <input image 1> [<input image 2> <input image 3> .... ] <output image>

Description

This scripts loads one or more images and creates a split image where each of the images is displayed in a cone of equal angle.

Sample Image

Script

import sys
from math import *
from alg import *

def CreateSplitImage(imagelist, start_at_y=True):
	result=imagelist[0].Copy(False)
	result.CenterSpatialOrigin()
	extent=imagelist[0].GetExtent()
	if start_at_y:
		startpoint=Vec2(0.0,-extent.GetSize()[0])
	else:
		startpoint=Vec2(extent.GetSize()[0],0.0)
	angle=2*pi/len(imagelist)
	count=0
	for image in imagelist:
		image.CenterSpatialOrigin()
		start_angle=angle*count
		end_angle=angle*(count+1)
		pol=Polygon2()
		pol.AddNode(Vec2(0,0))
		pol.AddNode(Rotate(startpoint,start_angle))
		if(start_angle<pi/4.0 and end_angle>pi/4.0):
			pol.AddNode(Rotate(startpoint,pi/4.0))
		if(start_angle<3.0*pi/4.0 and end_angle>3.0*pi/4.0):
			pol.AddNode(Rotate(startpoint,3.0*pi/4.0))
		if(start_angle<5.0*pi/4.0 and end_angle>5.0*pi/4.0):
			pol.AddNode(Rotate(startpoint,5.0*pi/4.0))
		if(start_angle<7.0*pi/4.0 and end_angle>7.0*pi/4.0):
			pol.AddNode(Rotate(startpoint,7.0*pi/4.0))
		pol.AddNode(Rotate(startpoint,end_angle))
		m=Mask(pol)
		result+=image.Apply(MaskImage(m))
		count+=1
	return result

imagelist=LoadImageList(sys.argv[1:-1])
result=CreateSplitImage(imagelist)
SaveImage(result,sys.argv[-1])