ETcVnDistanceType
Offers distance types.
Syntax
Definition:
TYPE ETcVnDistanceType :
(
TCVN_DT_USER := -1,
TCVN_DT_L1 := 1,
TCVN_DT_L2 := 2,
TCVN_DT_C := 3,
TCVN_DT_L12 := 4,
TCVN_DT_FAIR := 5,
TCVN_DT_WELSCH := 6,
TCVN_DT_HUBER := 7
)DINT;
END_TYPE
Values
|
Name |
Description |
|---|---|
|
TCVN_DT_USER |
User defined distance |
|
TCVN_DT_L1 |
|x1 - x2| + |y1 - y2| |
|
TCVN_DT_L2 |
Euclidean distance |
|
TCVN_DT_C |
max(|x1 - x2|, |y1 - y2|) |
|
TCVN_DT_L12 |
L1 - L2 : 2*(sqrt(1 + x*x/2) - 1)) |
|
TCVN_DT_FAIR |
c^2(|x|/c-log(1+|x|/c)), c = 1.3998 |
|
TCVN_DT_WELSCH |
c^2/2(1-exp(-(x/c)^2)), c = 2.9846 |
|
TCVN_DT_HUBER |
|x|<c ? x^2/2 : c(|x|-c/2), c=1.345 |