OpenStructure
create_split_image.py

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.

Usage:

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



import sys
from math import *
from ost.img.alg import *
from ost.geom 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=img.Mask(pol)
result+=image.Apply(img.alg.MaskImage(m))
count+=1
return result
if len(sys.argv)<3:
imagelist=io.LoadImageList(['circle.png', 'square.png'])
else:
imagelist=io.LoadImageList(sys.argv[1:-1])
result=CreateSplitImage(imagelist)
v_result=gui.CreateDataViewer(result)
main_area=gui.GostyApp.Instance().perspective.main_area
main_area.AddWidget("Split Image", v_result)