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	// Cylindrical wall example code
	//
	// Author : Chris H. Rycroft (LBL / UC Berkeley)
	// Email : chr@alum.mit.edu
	// Date : August 30th 2011

	#include "voro++.hh"
	using namespace voro;

	// Set up constants for the container geometry
	const double x_min=-6.5,x_max=6.5;
	const double y_min=-6.5,y_max=6.5;
	const double z_min=0,z_max=18.5;

	// Set the computational grid size
	const int n_x=7,n_y=7,n_z=14;

	int main() {
	// Create a container with the geometry given above, and make it
	// non-periodic in each of the three coordinates. Allocate space for
	// eight particles within each computational block.
	container con(x_min,x_max,y_min,y_max,z_min,z_max,n_x,n_y,n_z,
	false,false,false,8);

	// Add a cylindrical wall to the container
	wall_cylinder cyl(0,0,0,0,0,1,6);
	con.add_wall(cyl);

	// Import the particles from a file
	con.import("pack_cylinder");

	// Output the particle positions in POV-Ray format
	con.draw_particles_pov("cylinder_p.pov");

	// Output the Voronoi cells in POV-Ray format
	con.draw_cells_pov("cylinder_v.pov");
	}