FitLine
Fit a line into a point set.
Syntax
Definition:
HRESULT FitLine(
HRESULT hrPrev,
ITcVnContainer* ipPointSet,
TcVnVector4_LREAL& aFitLine,
ETcVnDistanceType eDistanceType = DT_L2,
double fParam = 0,
double fEpsRadius = 0.001,
double fEpsAngle = 0.001
)
Parameters
|
Name |
Type |
Default |
Description |
|---|---|---|---|
|
hrPrev |
|
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) | |
|
ipPointSet |
|
Source point set (ContainerType_Vector_TcVnPoint2_DINT or ContainerType_Vector_TcVnPoint2_REAL; The elements of this container are the individual points.) | |
|
aFitLine |
|
Resulting line. The first and second element describe the x and y component of a vector collinear to the line. The third and fourth element describe the x and y component of a point on the line. | |
|
eDistanceType |
DT_L2 |
Distance computation method (supported: L1, L2, L12, FAIR, WELSCH, HUBER) | |
|
fParam |
double |
0 |
Numerical parameter (c) for some eDistanceType (should be >= 0). If 0, an optimal value is chosen internally. |
|
fEpsRadius |
double |
0.001 |
Accuracy of the radius (distance of the line from the coordinate origin, should be > 0). A smaller value means higher accuracy. |
|
fEpsAngle |
double |
0.001 |
Accuracy of the angle (should be > 0). A smaller value means higher accuracy. |
Return valueRequired License
TC3 Vision Base
System Requirements
Development environment | Target platform | PLC libraries to include |
|---|---|---|
TwinCAT V3.1. 4024.44 or later | PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU | Tc3_Vision |