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Variable-width gap fill. Yay! #2960

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This commit is contained in:
Alessandro Ranellucci 2016-03-19 15:33:58 +01:00
parent 5ff7511a14
commit 6dc42ee902
19 changed files with 379 additions and 166 deletions
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49
xs/src/libslic3r/Line.cpp
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@ -163,6 +163,55 @@ Line::normal() const
return Vector((this->b.y - this->a.y), -(this->b.x - this->a.x));
}
void
Line::extend_end(double distance)
{
// relocate last point by extending the segment by the specified length
Line line = *this;
line.reverse();
this->b = line.point_at(-distance);
}
void
Line::extend_start(double distance)
{
// relocate first point by extending the first segment by the specified length
this->a = this->point_at(-distance);
}
bool
Line::intersection(const Line& line, Point* intersection) const
{
double denom = ((line.b.y - line.a.y)*(this->b.x - this->a.x)) -
((line.b.x - line.a.x)*(this->b.y - this->a.y));
double nume_a = ((line.b.x - line.a.x)*(this->a.y - line.a.y)) -
((line.b.y - line.a.y)*(this->a.x - line.a.x));
double nume_b = ((this->b.x - this->a.x)*(this->a.y - line.a.y)) -
((this->b.y - this->a.y)*(this->a.x - line.a.x));
if (fabs(denom) < EPSILON) {
if (fabs(nume_a) < EPSILON && fabs(nume_b) < EPSILON) {
return false; // coincident
}
return false; // parallel
}
double ua = nume_a / denom;
double ub = nume_b / denom;
if (ua >= 0 && ua <= 1.0f && ub >= 0 && ub <= 1.0f)
{
// Get the intersection point.
intersection->x = this->a.x + ua*(this->b.x - this->a.x);
intersection->y = this->a.y + ua*(this->b.y - this->a.y);
return true;
}
return false; // not intersecting
}
Pointf3
Linef3::intersect_plane(double z) const
{