tmodified createBondPair description - sphere - GPU-based 3D discrete element method algorithm with optional fluid coupling
 (HTM) git clone git://src.adamsgaard.dk/sphere
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       ---
 (DIR) commit f6f8a54343a9f6d208f5fa75da0f03d2140be761
 (DIR) parent b67be3fda4d26ef813cb6af47cbae812adf68e7a
 (HTM) Author: Anders Damsgaard Christensen <adc@geo.au.dk>
       Date:   Mon, 11 Mar 2013 14:01:56 -0700
       
       modified createBondPair description
       
       Diffstat:
         M python/sphere.py                    |       3 ++-
       
       1 file changed, 2 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/python/sphere.py b/python/sphere.py
       t@@ -671,11 +671,12 @@ class Spherebin:
                self.num[2] = numpy.ceil(z_max/cellsize)
                self.L = self.num * cellsize
        
       -    def createBondPair(self, i, j, spacing=0.1):
       +    def createBondPair(self, i, j, spacing=-0.1):
                """ Bond particles i and j. Particle j is moved adjacent to particle i,
                and oriented randomly. 
                @param spacing (float) The inter-particle distance prescribed. Positive 
                values result in a inter-particle distance, negative equal an overlap.
       +        The value is relative to the sum of the two radii.
                """
        
                x_i = self.x[i]