diff --git a/PhotoelectricEffect/draw_ip.py b/PhotoelectricEffect/draw_ip.py
index 632f5e98b68c9795ecd4cf32af32ae0eeae3ab5a..0b367d95c8b3e86540369572d542617c3e1a261d 100755
--- a/PhotoelectricEffect/draw_ip.py
+++ b/PhotoelectricEffect/draw_ip.py
@@ -4,6 +4,6 @@ import sys
 sys.path.append('..')
 import quickmap
 
-x31,y31=[2,4,8],[66.0,234,906]
-x32,y32=[2,4,8],[22.3,85.1,341]
+x31,y31=[4,16,64],[66.0,234,906]
+x32,y32=[4,16,64],[22.3,85.1,341]
 quickmap.GetMultiMap(quickmap.GetLine(x31, y31, polyLine=True, poly_passO=False) + quickmap.GetLine(x32, y32, polyLine=True, poly_passO=False))