Tehsurfer

    def moveNode(region, nodekey, plane_normal=[0, 1, 0], cache=none):
        # moveNode uses dot products combined with opencmiss' evaluateMeshLocation function to solve where a point lies along a given normal (line in 3D).
      
        # usage: Please not that this solver assumes that the user knows where the solution should be in one dimension, 
        # for example: Where is the closest mesh point at x=0 (normal=[1,0,0]) starting at [1,3,2]? 
        
        # Inputs: 
        #   region: the region you wish to solve in (must contain a mesh and a the node you wish to move)
        #   nodekey: identifier of the node we wish to project onto the mesh
        #   plane_normal: the direction we wish to project the node onto the mesh