cyang-kth/fmm

The wkt polygon format in h3mm is not correct

cyang-kth opened this issue · 1 comments

cyang-kth commented

fmm/src/mm/h3mm/h3_util.hpp

Lines 47 to 60 in 5d0eccf

std::string hex2wkt(const HexIndex &index, int precision=12){
std::ostringstream oss;
GeoBoundary boundary;
oss << "POLYGON(";
h3ToGeoBoundary(index, &boundary);
for (int v = 0; v < boundary.numVerts; v++) {
oss << std::setprecision(precision) << radsToDegs(boundary.verts[v].lon)
<< " " << radsToDegs(boundary.verts[v].lat) << ",";
}
oss << std::setprecision(precision) << radsToDegs(boundary.verts[0].lon)
<< " " << radsToDegs(boundary.verts[0].lat);
oss << ")";
return oss.str();
};

According to wikipedia, the wkt polygon format should be

POLYGON ((30 10, 40 40, 20 40, 10 20, 30 10))
cyang-kth commented

Feature already implemented. It will be pushed after our next paper is published.