void SplinePath::compute(FollowablePath *path)
{
ASPC aspc(tol, gamma, path);
for (int i = 0; i < size - 3; i++)
{
aspc.segment(&x[i], &y[i]);
}
if (path->mode == FollowablePath::MODE_LOOP)
{
path->add(path->x[0], path->y[0]);
}
}
void SplinePath::flush(SplineType type, std::vector<glm::vec2>& path, float tol) const {
std::function<glm::vec2(float, glm::vec2*)> gamma;
switch (type) {
case SplineType::bspline:
gamma = GammaBSpline;
break;
case SplineType::catmull_rom:
gamma = GammaCatmullRom;
break;
default:
return;
}
int size = points.size();
if (size > 2) {
ASPC aspc(gamma, path, tol);
if (closed) {
aspc.segment(points[size - 1], points[0], points[1], points[2]);
} else {
if (type == SplineType::bspline) {
aspc.segment(points[0], points[0], points[0], points[1]);
}
aspc.segment(points[0], points[0], points[1], points[2]);
}
for (int i = 0; i < size - 3; i++) {
aspc.segment(points[i], points[i + 1], points[i + 2], points[i + 3]);
}
if (closed) {
aspc.segment(points[size - 3], points[size - 2], points[size - 1], points[0]);
aspc.segment(points[size - 2], points[size - 1], points[0], points[1]);
} else {
aspc.segment(points[size - 3], points[size - 2], points[size - 1], points[size - 1]);
aspc.segment(points[size - 2], points[size - 1], points[size - 1], points[size - 1]);
if (type == SplineType::bspline) {
aspc.segment(points[size - 1], points[size - 1], points[size - 1], points[size - 1]);
}
}
}
}
void SplinePath::flush(Type type, FollowablePath &path, float tol) const
{
function<Vec2f (float, Vec2f*)> gamma;
switch (type)
{
case TYPE_BSPLINE:
gamma = GammaBSpline;
break;
case TYPE_CATMULL_ROM:
gamma = GammaCatmullRom;
break;
default:
return;
}
int size = points.size();
if (size > 2)
{
ASPC aspc(gamma, path, tol);
if (closed)
{
aspc.segment(points[size - 1], points[0], points[1], points[2]);
}
else
{
if (type == TYPE_BSPLINE)
{
aspc.segment(points[0], points[0], points[0], points[1]);
}
aspc.segment(points[0], points[0], points[1], points[2]);
}
for (int i = 0; i < size - 3; i++)
{
aspc.segment(points[i], points[i + 1], points[i + 2], points[i + 3]);
}
if (closed)
{
aspc.segment(points[size - 3], points[size - 2], points[size - 1], points[0]);
aspc.segment(points[size - 2], points[size - 1], points[0], points[1]);
path.close();
path.setMode(FollowablePath::MODE_LOOP);
}
else
{
aspc.segment(points[size - 3], points[size - 2], points[size - 1], points[size - 1]);
aspc.segment(points[size - 2], points[size - 1], points[size - 1], points[size - 1]);
if (type == TYPE_BSPLINE)
{
aspc.segment(points[size - 1], points[size - 1], points[size - 1], points[size - 1]);
}
}
}
}
