//=========================================================Interpolate========================================================================//
ccIndexedTransformation ccIndexedTransformation::Interpolate( double index,
const ccIndexedTransformation& trans1,
const ccIndexedTransformation& trans2)
{
double dt = trans2.getIndex() - trans1.getIndex();
if (dt == 0){
assert(index == trans1.getIndex());
return trans1;
}
//we compute the transformation matrix between trans1 and trans2
double t = (index - trans1.getIndex())/dt;
assert(t >= 0 && t <= 1);
ccGLMatrix mat = ccGLMatrix::Interpolate(static_cast<PointCoordinateType>(t),trans1,trans2);
return ccIndexedTransformation(mat, index);
}
static bool IndexCompOperator(const ccIndexedTransformation& a, double index)
{
return a.getIndex() < index;
}
static bool IndexedSortOperator(const ccIndexedTransformation& a, const ccIndexedTransformation& b)
{
return a.getIndex() < b.getIndex();
}