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Contents
/*
* Copyright 2018 Uber Technologies, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Example program that finds the edge between two indexes and prints their
* boundary vertices.
*/
#include <h3/h3api.h>
#include <inttypes.h>
#include <stdio.h>
int main(int argc, char *argv[]) {
H3Index origin = 0x8a2a1072b59ffffL;
H3Index destination = 0x8a2a1072b597fffL; // north of the origin
H3Index edge = getH3UnidirectionalEdge(origin, destination);
printf("The edge is %" PRIx64 "\n", edge);
GeoBoundary boundary;
getH3UnidirectionalEdgeBoundary(edge, &boundary);
for (int v = 0; v < boundary.numVerts; v++) {
printf("Edge vertex #%d: %lf, %lf\n", v,
radsToDegs(boundary.verts[v].lat),
radsToDegs(boundary.verts[v].lon));
}
// Output:
// The edge is 16a2a1072b59ffff
// Edge vertex #0: 40.690059, -74.044152
// Edge vertex #1: 40.689908, -74.045062
}
Version data entries
10 entries across 10 versions & 1 rubygems