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x770y45
d:\lidarqa\consist_rithaiti\x770y45.txt
06 Aug 10 13:17:24 Friday  elapsed time 00:26:52
Rectangular area = 0.949 km2
Data area = 0.887 km2
*percent double coverage = 69.539
**low-curvature dc area = 0.023 km2
1st-return RMSE, low-curvature areas = 0.093
95p = 0.203, 98p = 0.283, 99.5p = 0.362
BE RMSE = 0.284
95p = 0.502, 98p = 0.803, 99.5p = 1.461
4242257 unique returns and 0 duplicate returns
 
142194.3766 771699.31 2046447.58 505.52 1 2 
142209.45 770700.27 2045679.57 409.95 1 1 
900.4946
143109.9446 770700.03 2045507.43 349.17 1 1 
143124.797 771699.99 2046122.64 513.23 1 2 
304.9156
143429.7126 771699.5 2046019.86 514.29 1 1 
143445.48 770700.32 2045500.28 342.97 1 2 
952.188
144397.668 770700.08 2045504.07 345.57 1 1 
144412.3208 771699.98 2045727.1 496.95 1 1 
 
3979605 1st returns
262652 2nd returns
0 3rd returns
0 4th returns
465232 ground returns
0 blunders

curvature versus slope
  n = 4694212 
  X=0, Y = 39.29 +/- 22.97 
  Weighted least-squares fit:  Y = 38.3 + 1.063 X  + -0.00607 X**2 
 
slope versus dZ, curvature < 5
  n = 30884 
 
  Weighted least-squares fit:  Y = 1.2 + 0.269 X  + -0.00075 X**2 
     at X = 100, Y = 20.7 
     effective RMSE xy = 32.5 
 
slope versus dZ, curvature < 15
  n = 218264 
 
  Weighted least-squares fit:  Y = 1.8 + 0.233 X  + 0.00015 X**2 
 
curvature versus dZ, slope < 10
  n = 234808 
  X=0, Y = 3.23 +/- 2.06 
  Weighted least-squares fit:  Y = 3.3 + 0.157 X  + -0.00020 X**2 
 
 
Number of samples 4701415
Max dz = 900
Mean dz = 29
RMS dz = 459.117631986
100cm = 99.9078362578 percentile value of dz
Mean dz (curv<=5) = 7
RMS dz (curv<=5) = 10.1488915651

Number of survey units in 1 meter = 1
Nominal spot spacing (in survey units) = 0.75
Nominal pulse density (per m2) = 3.5
Difference cell size = 0.375
IsData cell size = 0.1875
IsData expand cells = 8
IsData shrink cells = 7
BE IsData cell size = 0.375
BE IsData expand cells = 24
BE IsData shrink cells = 24
MaxCurve = 106.6666666667
Curvature expand cells = 4
Curvature shrink cells = 3
Point density cell size = 3
Color critical value = 0.1
Hue jump at critical value = 90