// given global t, returns the point in the curve
void getGlobalCatmullRomPoint(float **p,int point_count, float gt, float *res) {
float t = gt * point_count; // this is the real global t
int index = floor(t); // which segment
t = t - index; // where within the segment
// indices store the points
int indices[4];
indices[0] = (index + point_count - 1) % point_count; indices[1] = (indices[0] + 1) % point_count;
indices[2] = (indices[1] + 1) % point_count; indices[3] = (indices[2] + 1) % point_count;
getCatmullRomPoint(p, t, indices, res);
}
// given global t, returns the point in the curve
void TranslationCatmull::getGlobalCatmullRomPoint(float gt, float *res) {
float t = gt * nControlPoints; // this is the real global t
int index = (int) t; // which segment
t = t - index; // where within the segment
// indices store the points
int indices[4];
indices[0] = index % nControlPoints;
indices[1] = (index + 1) % nControlPoints;
indices[2] = (index + 2) % nControlPoints;
indices[3] = (index + 3) % nControlPoints;
getCatmullRomPoint(t, indices, res);
}
