[Pyode-user] Ray contact position wrong

[witmud <wi...@ya...>]

i setup a ray test for selecting body :

#------A Ray code :
start = (-1,1,2)
end = (-1,1,-2)
ray = ode.GeomRay(space, 10)
ray.set(start,end)


#------Ray collision detecting code:

for i in range(space.getNumGeoms()):
    geom1 = ray
    geom2 = space.getGeom(i)    
    contacts = ode.collide(geom1, geom2)
    if contacts and geom2.placeable(): 	    
	#print contacts
	gpos = geom2.getBody().getPosition()
	print "Gpos=", gpos
	cpos, normal, depth, geom1, geom2 = contacts[0].getContactGeomParams() 
	print "Cpos=",cpos, normal
	break 

but the displayed contact position is wired, this is the output on console:
#-------Cpos is contact position

Cpos= (-1.7109856605529785, 1.7109856605529785, 0.57802879810333252)
Cpos= (-1.7049093246459961, 1.7049093246459961, 0.59018146991729736)
Cpos= (-1.6461362838745117, 1.6461362838745117, 0.70772731304168701)

you know the ray is fixed from start = (-1,1,2) to  end = (-1,1,-2), y =1, so all of
Cpos.y should be 1.0
but all Cpos.y are more than 1!




       
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