本文整理汇总了C++中slist_type::cbegin方法的典型用法代码示例。如果您正苦于以下问题：C++ slist_type::cbegin方法的具体用法？C++ slist_type::cbegin怎么用？C++ slist_type::cbegin使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类slist_type的用法示例。
在下文中一共展示了slist_type::cbegin方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: find_intersections
/**
* Find intersection between segments.
*
* @param problem_reporter Any intersections found are
* reported to this object.
* @returns true if there are intersections.
*/
uint32_t find_intersections(osmium::area::ProblemReporter* problem_reporter) const {
if (m_segments.empty()) {
return 0;
}
uint32_t found_intersections = 0;
for (auto it1 = m_segments.cbegin(); it1 != m_segments.cend()-1; ++it1) {
const NodeRefSegment& s1 = *it1;
for (auto it2 = it1+1; it2 != m_segments.end(); ++it2) {
const NodeRefSegment& s2 = *it2;
assert(s1 != s2); // erase_duplicate_segments() should have made sure of that
if (outside_x_range(s2, s1)) {
break;
}
if (y_range_overlap(s1, s2)) {
osmium::Location intersection = calculate_intersection(s1, s2);
if (intersection) {
++found_intersections;
if (m_debug) {
std::cerr << " segments " << s1 << " and " << s2 << " intersecting at " << intersection << "\n";
}
if (problem_reporter) {
problem_reporter->report_intersection(s1.way()->id(), s1.first().location(), s1.second().location(),
s2.way()->id(), s2.first().location(), s2.second().location(), intersection);
}
}
}
}
}
return found_intersections;
}