Comments (2)
This is not a correct call because cellToChildren expects the last argument to be an array, not a pointer to a single value. There are many child hexagons for the parent hexagon. You may need something like the following:
uint64_t h12_1_size;
H3Error sizeError = cellToChildrenSize(h7, 12, &h12_1_size);
if (!sizeError) {
H3Index *h12_1 = calloc(h12_1_size, sizeof(H3Index));
H3Error childrenError = cellToChildren(h7, 12, h12_1);
if (!childrenError) {
// use h12_1
} else {
// handle error
}
free(h12_1);
}
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H3Index
thanks for your reply, it work! thank you!!!
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Related Issues (20)
- Broken Link to website docs in contributing.md
- Broken link to website in contributing docs
- Uber CLA Contact HOT 1
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- cell_to_child_pos() version 4 of the Python API client HOT 3
- polygonToCells: validity of polygons HOT 3
- Missing library stubs MYPY HOT 2
- polygonToCells not returning all H3Cells for the bounding box containing both USA and Russia HOT 1
- Confirmation of grid algorithm HOT 3
- Add function for returning the H3 indices of each endpoint of a directed edge HOT 5
- Expose cellToChildrenSize in bindings HOT 1
- Getting unexpected results when converting coordinates in either direction HOT 4
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