fixed serial bug

1 files changed, 4 insertions, 4 deletions

diff --git a/layers.py b/layers.py
index ceaef1e..603b60d 100644
--- a/layers.py
+++ b/layers.py
@@ -52,8 +52,8 @@ class indexlayer(layer):
 	colour=-1
 	def setcoord(self,pos):
 		result=None
-		#210 35  5 185
-		c=self.image.getpixel(pos)			
+		p=(min(max(int(pos[0]),0),self.image.size[0]-2),min(max(int(pos[1]),0),self.image.size[1]-2))
+		c=self.image.getpixel(p)			
 		if c!=self.colour:
 			self.colour=c
 			print "indexlayer: new colour",c
@@ -71,8 +71,8 @@ class scalelayer(layer):
 	def setcommand(self,command):
 		self.command=command
 	def setcoord(self,pos):
-		px=int(pos[0])
-		py=int(pos[1])
+		px=min(max(int(pos[0]),0),self.image.size[0]-2)
+		py=min(max(int(pos[1]),0),self.image.size[1]-2)
 		c=float(self.image.getpixel((px,py)))/255.0
 		c1=float(self.image.getpixel((px+1,py)))/255.0
 		c2=float(self.image.getpixel((px,py+1)))/255.0