efifogel
commented
1 year ago You can use CGAL::Arr_curve_data_traits_2 to assign a distinct label to each curve. This label is carried over to the sub curves when the original curve is subdivided due to intersections. You can access the label using the data() member of the curve.
include
include <CGAL/Exact_predicates_exact_constructions_kernel.h>
include <CGAL/Arr_segment_traits_2.h>
include <CGAL/Surface_sweep_2_algorithms.h>
include <CGAL/Arr_curve_data_traits_2.h>
using Kernel = CGAL::Exact_predicates_exact_constructions_kernel;
using Base_traits_2 = CGAL::Arr_segment_traits_2
int main() {
Traits_2 traits;
size_t id(0);
Base_x_monotone_curve_2 base_segs[] = {
Base_x_monotone_curve_2(Point_2(1, 5), Point_2(8, 5)),
Base_x_monotone_curve_2(Point_2(1, 1), Point_2(8, 8)),
Base_x_monotone_curve_2(Point_2(3, 1), Point_2(3, 8)),
Base_x_monotone_curve_2(Point_2(8, 5), Point_2(8, 8)),
};
auto size = sizeof(base_segs) / sizeof(Base_x_monotone_curve_2);
X_monotone_curve_2 segs[size];
for (std::size_t i = 0; i < size; ++i)
segs[i] = X_monotone_curve_2(base_segs[i], i);
std::list
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On Thu, 22 Dec 2022 at 04:12, Supranaturaler @.***> wrote:
Issue Details
CGAL provides the function "CGAL::compute_subcurves" to compute the non-intersecting sub-segments. However I want to get the composed sub-segments of each input segment. For example: the segment c1 is composed of 1, 2, 3; the segment c2 is composed of 4, 5, 6. Is there a fast way to get the result? [image: image] https://user-images.githubusercontent.com/40469886/209039352-3d302a47-102b-4f3f-a713-24e20fc66fdc.png Source Code Environment
- Operating system (Windows/Mac/Linux, 32/64 bits):
- Compiler:
- Release or debug mode:
- Specific flags used (if any):
- CGAL version:
- Boost version:
- Other libraries versions if used (Eigen, TBB, etc.):
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Issue Details
CGAL provides the function "CGAL::compute_subcurves" to compute the non-intersecting sub-segments. However I want to get the composed sub-segments of each input segment. For example: the segment c1 is composed of 1, 2, 3; the segment c2 is composed of 4, 5, 6. Is there a fast way to get the result?
Source Code
Environment