CVT_MAIN A sample problem for the probabilistic Centroidal Voronoi Tesselation algorithm. Today's date: 20010614 Today's time: 075837.641 Given a region in 2D or 3D, the problem is to determine GENERATORS, a set of points which define a division of the region into Voronoid cells, which are also CENTROIDS of the Voronoi cells. Geometry parameters: ------------------- The spatial dimension is NDIM = 2 The minimum corner of the bounding box is: 0.000000000000000E+000 0.000000000000000E+000 The maximum corner of the bounding box is: 100.000000000000 100.000000000000 CVT Algorithm parameters: ------------------------- The number of Voronoi cells to generate: 16 Number of iterations to determine CVT: 10 Number of sampling points per Voronoi cell: 1000 Voronoi cell generators are initialized by Halton. Moment parameters: ------------------ Number of sampling points per Voronoi cell: 1000 The volume of the region is given. It is specified as REGION_VOLUME = 1700.00000000000 Nearest Neighbor Search parameters: ----------------------------------- The nearest neighbor search is not speeded up. The nearest neighbor search is done by exhaustion. Miscellaneous parameters: ------------------------ Generator and moment output files WILL be written. RANDOM_INITIALIZE Initialize RANDOM_NUMBER with arbitrary SEED = 1730096534 Volume of bounding box is 10000.0000000000 Given volume of region is 1700.00000000000 Estimated volume of region is 1681.67915663790 Elapsed CPU time, CPU_TIME: 2.366572 seconds. Elapsed CPU time, ETIME: 2.366800 seconds. Elapsed time, SYSTEM_CLOCK: 3.706300 seconds. QUALITY Measure #1: ( Cell_Volume - Expected Cell Volume ) Expected Cell Volume = 106.250000000000 L1 norm = 409.487500000000 L2 norm = 113.689188071580 L1 norm / N = 25.5929687500000 L2 norm / sqrt ( N ) = 28.4222970178949 L-Inf norm = 52.1687500000000 Measure #2: ( Cell_Trace - Average Cell Trace ) Average Cell Trace = 18.3929095172152 L1 norm = 62.0416918673852 L2 norm = 17.3748941157079 L1 norm / N = 3.87760574171158 L2 norm / sqrt ( N ) = 4.34372352892697 L-Inf norm = 6.77465331916421 Measure #3: ( The determinant of the deviatoric matrix ) L1 norm = 93.9984944054311 L2 norm = 33.2249453984598 L1 norm / N = 5.87490590033944 L2 norm / sqrt ( N ) = 8.30623634961496 L-Inf norm = 22.0225301072032 CVT_MAIN Normal end of execution.