Comments (1)
I actually made that in QGIS, but here's the C++ program to export a WKT TSV file of S2 cell geometries:
#include <iostream>
#include <vector>
#include "s2/s2region_coverer.h"
#include "s2/s2latlng.h"
#include "s2/s2latlng_rect.h"
#include "s2/s2polyline.h"
#include "s2/s2loop.h"
using namespace std;
void print(int i, S2Cell &cell) {
S2LatLng latlng{cell.GetVertex(i)};
cout << latlng.lng() << " " << latlng.lat();
}
int main(int argc, char* argv[]) {
... define points ...
auto c = std::make_unique<S2Polyline>(points);
S2RegionCoverer::Options options;
options.set_max_cells(1024);
options.set_max_level(16);
S2RegionCoverer coverer{options};
for (auto const &cell_id : coverer.GetCovering(*c)) {
S2Cell cell{cell_id};
cout << cell.id().level() << "\t";
cout << "POLYGON ((";
for (int i = 0; i <= 3; i++) {
print(i, cell);
cout << ", ";
}
print(0,cell);
cout << "))" << endl;
}
}
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Related Issues (20)
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