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6. Interpolation Functions
Example of program
The example of program that has 4 stages (cubic curve) and 11 control points is shown below.
Control
P0
P1
point
Knot
0.0
0.0
:
:
G05 P10000;
G90 G01 X0. Y0. Z0. F300;
G06.2 P4 X0. Y0. R1. K0;
X1.0 Y2.0 R1. K0;
X2.5 Y3.5 R1. K0;
X4.4 Y4.0 R1. K0;
X6.0 Y0.5 R1. K1;
X8.0 Y0.0 R1. K2;
X9.5 Y0.5 R1. K3;
X11.0 Y2.0 R1. K4;
X10.5 Y4.5 R1. K5;
X8.0 Y6.5 R1. K6;
X9.5 Y8.0 R1. K7;
K8;
K8;
K8;
K8;
G05 P0;
:
:
P2
P3
P4
P5
0.0
0.0
1.0
2.0
Y
9
8
7
P0
P1
6
P2
5
P3
4
P4
3
P5
P6
2
P7
1
P8
0
P0(0.0,0.0)
P9
0
P10
6.15 NURBS Interpolation
P6
P7
P8
P9
3.0
4.0
5.0
6.0
P9(8.0,6.5)
P3(4.4,4.0)
P2(2.5,3.5)
P1(1.0,2.0)
P4(6.0,0.5)
2
4
102
P10
7.0
8.0
8.0
8.0
P10(9.5,8.0)
P8(10.5,4.5)
P7(11.0,2.0)
P6(9.5,0.5)
P5(8.0,0.0)
6
8
10
Passes through control point
NURBS interpolation curve
8.0
X
12
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