Ninja Library - Mathematical Function

njKochanekSpline

Interpolates Koshanek spline

FORMAT

void njKochanekSpline( *idata, *odata, *attr, frame )
float *idata
float *odata
NJS_SPLINE *attr
float frame

PARAMETER

 *idata  Input data (but idata[3*4]) 
 *odata  Output data (but odata[3]) 
 *attr  Spline attribute 
 frame    Frame 

RETURN

None

DESCRIPTION

Stores spline curve correction value in the specified parameter. Please set the frame number to a value between 0 and 1. For the attributes, please specify tension, bias, and continuity at the fparam members (attr->fparam[0], attr->fparam[1],attr->fparam[2]) of the spline attribute structure (each ranging from -1.f to 1.f).

EXAMPLE

#include <Shinobi.h>
#define X1  1.f
#define Y1  0.f
#define Z1  0.f
#define X2  5.f
#define TENSION 0.2f
#define BIAS 0.1f
#define CONT -0.1f
	:
float idata[3][4] = 
{
 {X1, Y1, Z1},
 {X2, Y2, Z2},
 {X3, Y3, Z3},
 {X4, Y4, Z4},
};
float odata[3];
NJS_SPLINE attr;
	:
attr.fparam[0] = TENSION;
attr.fparam[1] = BIAS;
attr.fparam[2] = CONT;
njKochanekSpline((float*)idata, odata, &attr, 0.5f); 
	:

REFERENCE

njOverhauserSpline()
njCardinalSpline()

njKochanekSpline
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