There are six cases to consider: Case Flag Solutions Symptons ------- ---- ------------- ----------------------------- CASE 1A: 0 No correction Recorded and actual Line lengths same Reading densities vary slightly (passed the tolerance test) CASE 1B: -1 No correction Line lengths same Reading densities vary and cannot pass the tolerance test CASE 2A: 1 Corrected by Recorded line length too short extension Possilble high readings in segment(s) Corrected (by extending) and actual lengths become the same CASE 2B: 2 Corrected by Recorded line length too short interpolation Possilble high readings in segment(s) Corrected (by extending) and actual lengths are not same. Interpolation is then applied CASE 3A: 1 Corrected by Recorded line length too long shifting or Possible low readings in segment(s) (shrank) Corrected (by shifting) and actual lengths are same CASE 3B: 2 Corrected by Recorded line length too long interpolation Possible low readings in segment(s) Corrected (by shifting) and actual lengths are not same. Interpolation is then applied TERMINOLOGY: Segments: A segment refers to the distance and its contents between two adjacent fiducial markers Normal Density: The density (number of readings) shared by the segments in in a survey line. The number of segments with the density is greater than the number of segments having a different density in a line. Tolerance and Bound: Tolerance is defined as a percentage, say 50% (=0.5). Based on the tolerance, a lower bound and upper bound can be defined: Lower bound = (Normal Density) - (Normal Density)*Tolerance Upper bound = (Normal Density) - (Normal Density)*Tolerance Segments will pass the tolerance test if the number of readings falls within the Lower and Upper Bounds.

public static void GeometricsQC(
	CWA oWA1,
	string str2,
	CVV oVV3,
	double d4,
	double d5,
	double d6,
	CVV oVV7,
	CVV oVV8
)

Public Shared Sub GeometricsQC ( 
	oWA1 As CWA,
	str2 As String,
	oVV3 As CVV,
	d4 As Double,
	d5 As Double,
	d6 As Double,
	oVV7 As CVV,
	oVV8 As CVV
)

public:
static void GeometricsQC(
	CWA^ oWA1, 
	String^ str2, 
	CVV^ oVV3, 
	double d4, 
	double d5, 
	double d6, 
	CVV^ oVV7, 
	CVV^ oVV8
)

static member GeometricsQC : 
        oWA1 : CWA * 
        str2 : string * 
        oVV3 : CVV * 
        d4 : float * 
        d5 : float * 
        d6 : float * 
        oVV7 : CVV * 
        oVV8 : CVV -> unit