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Turn ExtrusionLoop into a collection of polylines. Includes some changes to the Polygon API to avoid returning newly allocatd objects

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This commit is contained in:
Alessandro Ranellucci 2014-05-07 12:02:09 +02:00
parent c72dc13d7e
commit d2d885fc53
11 changed files with 107 additions and 72 deletions
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40
xs/src/Polygon.cpp
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@ -51,43 +51,41 @@ Polygon::lines(Lines* lines) const
lines->push_back(Line(this->points.back(), this->points.front()));
}
Polyline*
Polygon::split_at(const Point &point) const
void
Polygon::split_at(const Point &point, Polyline* polyline) const
{
// find index of point
for (Points::const_iterator it = this->points.begin(); it != this->points.end(); ++it) {
if (it->coincides_with(point))
return this->split_at_index(it - this->points.begin());
if (it->coincides_with(point)) {
this->split_at_index(it - this->points.begin(), polyline);
return;
}
}
CONFESS("Point not found");
return NULL;
}
Polyline*
Polygon::split_at_index(int index) const
void
Polygon::split_at_index(int index, Polyline* polyline) const
{
Polyline* poly = new Polyline;
poly->points.reserve(this->points.size() + 1);
polyline->points.reserve(this->points.size() + 1);
for (Points::const_iterator it = this->points.begin() + index; it != this->points.end(); ++it)
poly->points.push_back(*it);
polyline->points.push_back(*it);
for (Points::const_iterator it = this->points.begin(); it != this->points.begin() + index + 1; ++it)
poly->points.push_back(*it);
return poly;
polyline->points.push_back(*it);
}
Polyline*
Polygon::split_at_first_point() const
void
Polygon::split_at_first_point(Polyline* polyline) const
{
return this->split_at_index(0);
this->split_at_index(0, polyline);
}
Points
Polygon::equally_spaced_points(double distance) const
void
Polygon::equally_spaced_points(double distance, Points* points) const
{
Polyline* polyline = this->split_at_first_point();
Points pts = polyline->equally_spaced_points(distance);
delete polyline;
return pts;
Polyline polyline;
this->split_at_first_point(&polyline);
polyline.equally_spaced_points(distance, points);
}
double