inline Lines to_lines(const Polygon &poly) { Lines lines; lines.reserve(poly.points.size()); for (Points::const_iterator it = poly.points.begin(); it != poly.points.end()-1; ++it) lines.push_back(Line(*it, *(it + 1))); lines.push_back(Line(poly.points.back(), poly.points.front())); return lines; }
Lines Polyline::lines() const { Lines lines; lines.reserve(this->points.size() - 1); for (Points::const_iterator it = this->points.begin(); it != this->points.end()-1; ++it) { lines.push_back(Line(*it, *(it + 1))); } return lines; }
inline Lines to_lines(const Polygons &polys) { size_t n_lines = 0; for (size_t i = 0; i < polys.size(); ++ i) n_lines += polys[i].points.size(); Lines lines; lines.reserve(n_lines); for (size_t i = 0; i < polys.size(); ++ i) { const Polygon &poly = polys[i]; for (Points::const_iterator it = poly.points.begin(); it != poly.points.end()-1; ++it) lines.push_back(Line(*it, *(it + 1))); lines.push_back(Line(poly.points.back(), poly.points.front())); } return lines; }
inline Lines to_lines(const ExPolygon &src) { size_t n_lines = src.contour.points.size(); for (size_t i = 0; i < src.holes.size(); ++ i) n_lines += src.holes[i].points.size(); Lines lines; lines.reserve(n_lines); for (size_t i = 0; i <= src.holes.size(); ++ i) { const Polygon &poly = (i == 0) ? src.contour : src.holes[i - 1]; for (Points::const_iterator it = poly.points.begin(); it != poly.points.end()-1; ++it) lines.push_back(Line(*it, *(it + 1))); lines.push_back(Line(poly.points.back(), poly.points.front())); } return lines; }
inline Lines to_lines(const ExPolygons &src) { size_t n_lines = 0; for (ExPolygons::const_iterator it_expoly = src.begin(); it_expoly != src.end(); ++ it_expoly) { n_lines += it_expoly->contour.points.size(); for (size_t i = 0; i < it_expoly->holes.size(); ++ i) n_lines += it_expoly->holes[i].points.size(); } Lines lines; lines.reserve(n_lines); for (ExPolygons::const_iterator it_expoly = src.begin(); it_expoly != src.end(); ++ it_expoly) { for (size_t i = 0; i <= it_expoly->holes.size(); ++ i) { const Points &points = ((i == 0) ? it_expoly->contour : it_expoly->holes[i - 1]).points; for (Points::const_iterator it = points.begin(); it != points.end()-1; ++it) lines.push_back(Line(*it, *(it + 1))); lines.push_back(Line(points.back(), points.front())); } } return lines; }