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x771y44
d:\lidarqa\consist_rithaiti\x771y44.txt
06 Aug 10 13:45:23 Friday  elapsed time 00:27:43
Rectangular area = 0.789 km2
Data area = 0.732 km2
*percent double coverage = 98.594
**low-curvature dc area = 0.083 km2
1st-return RMSE, low-curvature areas = 0.064
95p = 0.134, 98p = 0.178, 99.5p = 0.266
BE RMSE = 0.368
95p = 0.634, 98p = 1.135, 99.5p = 2.081
4854618 unique returns and 1916 duplicate returns
 
143125.6172 771800.57 2045499.95 367.58 2 2 
143125.7614 771811.43 2045498.95 357.76 2 2 
290.444
143416.2054 772699.36 2045499.81 328.92 1 1 
143431.2086 771700.3 2045351.96 360.81 1 1 
980.3064
144411.515 771700.0 2045064.0 265.32 2 1 
144426.7652 772699.97 2045496.6 333.23 1 1 
292.6236
144719.3888 772699.97 2045496.38 325.54 1 1 
144738.5884 771700.51 2044711.6 426.9 1 1 
172166.9404
316905.5288 771700.01 2044728.15 402.87 1 1 
316921.2114 772699.95 2045497.07 334.1 1 1 
 
4303739 1st returns
550879 2nd returns
0 3rd returns
0 4th returns
530801 ground returns
0 blunders

curvature versus slope
  n = 4219210 
  X=0, Y = 33.37 +/- 26.90 
  Weighted least-squares fit:  Y = 32.2 + 1.797 X  + -0.01517 X**2 
 
slope versus dZ, curvature < 5
  n = 121137 
 
  Weighted least-squares fit:  Y = 5.3 + -0.028 X  + 0.00164 X**2 
     at X = 100, Y = 18.9 
     effective RMSE xy = 28.4 
 
slope versus dZ, curvature < 15
  n = 637652 
  X=0, Y = 5.47 +/- 3.49 
  Weighted least-squares fit:  Y = 5.1 + 0.015 X  + 0.00128 X**2 
 
curvature versus dZ, slope < 10
  n = 1019359 
  X=0, Y = 5.50 +/- 2.91 
  Weighted least-squares fit:  Y = 4.8 + 0.143 X  + -0.00089 X**2 
 
 
Number of samples 4221803
Max dz = 900
Mean dz = 10
RMS dz = 16.0
100cm = 99.9225686277 percentile value of dz
Mean dz (curv<=5) = 5
RMS dz (curv<=5) = 6.63324958071

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