From c932ec015ce883709b17eef3b3af2669f32df5fd Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Sat, 18 Sep 2010 01:55:48 -1000
Subject: [PATCH] adjust bounds for schematic extraction, at least vertically
 xxx

---
 mclevel.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/mclevel.py b/mclevel.py
index 4f6bf84..46544d8 100644
--- a/mclevel.py
+++ b/mclevel.py
@@ -819,6 +819,19 @@ class MCLevel:
             blocks[:] = sourceBlocks[:]
         
     def extractSchematic(self, box):
+        x,y,z = box.origin
+        w,h,l = box.size
+        if y<0: 
+            h += y
+            y = 0;
+        if y+h>self.Height:
+            h -=y+h-self.Height
+            y=self.Height-h
+        
+        box.origin = x,y,z 
+        box.size = w,h,l 
+        
+            
         tempSchematic = MCSchematic(shape=box.size)
         tempSchematic.materials = self.materials
         tempSchematic.copyBlocksFrom(self, box, (0,0,0))