public static H3Index GetDestinationH3FromUniDirectionalEdge(Code.H3Index edge)
{
return(new H3Index
{
Value = H3UniEdge.getDestinationH3IndexFromUnidirectionalEdge(edge)
});
}
public void getH3UnidirectionalEdgeAndFriends()
{
H3Index sf = H3Index.geoToH3(ref sfGeo, 9);
List <H3Index> ring = new ulong[Algos.maxKringSize(1)].Select(cell => new H3Index(cell)).ToList();
Algos.hexRing(sf, 1, ref ring);
H3Index sf2 = ring[0];
H3Index edge = H3UniEdge.getH3UnidirectionalEdge(sf, sf2);
Assert.True(sf == H3UniEdge.getOriginH3IndexFromUnidirectionalEdge(edge),
"can retrieve the origin from the edge");
Assert.True(
sf2 == H3UniEdge.getDestinationH3IndexFromUnidirectionalEdge(edge),
"can retrieve the destination from the edge");
var originDestination = new ulong[2].Select(cell => new H3Index(cell)).ToList();
H3UniEdge.getH3IndexesFromUnidirectionalEdge(edge, ref originDestination);
Assert.True(originDestination[0] == sf,
"got the origin first in the pair request");
Assert.True(originDestination[1] == sf2,
"got the destination last in the pair request");
List <H3Index> largerRing = new ulong[Algos.maxKringSize(2)].Select(cell => new H3Index(cell)).ToList();
Algos.hexRing(sf, 2, ref largerRing);
H3Index sf3 = largerRing[0];
H3Index notEdge = H3UniEdge.getH3UnidirectionalEdge(sf, sf3);
Assert.True(notEdge == 0, "Non-neighbors can't have edges");
}
public void getH3UnidirectionalEdgesFromHexagon()
{
H3Index sf = H3Index.geoToH3(ref sfGeo, 9);
var edges = new ulong[6].Select(cell => new H3Index(cell)).ToList();
H3UniEdge.getH3UnidirectionalEdgesFromHexagon(sf, edges);
for (int i = 0; i < 6; i++)
{
Assert.True
(
H3UniEdge.h3UnidirectionalEdgeIsValid(edges[i]) == 1,
"edge is an edge"
);
Assert.True
(
sf == H3UniEdge.getOriginH3IndexFromUnidirectionalEdge(edges[i]),
"origin is correct"
);
Assert.True
(
sf != H3UniEdge.getDestinationH3IndexFromUnidirectionalEdge(edges[i]),
"destination is not origin"
);
}
}
public void getDestinationH3IndexFromUnidirectionalEdge()
{
H3Index hexagon = 0x891ea6d6533ffffL;
Assert.True(
H3UniEdge.getDestinationH3IndexFromUnidirectionalEdge(hexagon) == 0,
"getting the destination from a hexagon index returns 0");
Assert.True(H3UniEdge.getDestinationH3IndexFromUnidirectionalEdge(0) == 0,
"getting the destination from a null index returns 0");
}
public void getH3UnidirectionalEdgesFromPentagon()
{
H3Index pentagon = 0x821c07fffffffff;
var edges = new ulong[6].Select(cell => new H3Index(cell)).ToList();
H3UniEdge.getH3UnidirectionalEdgesFromHexagon(pentagon, edges);
int missingEdgeCount = 0;
for (int i = 0; i < 6; i++)
{
if (edges[i] == 0)
{
missingEdgeCount++;
}
else
{
Assert.True
(
H3UniEdge.h3UnidirectionalEdgeIsValid(edges[i]) == 1,
"edge is an edge"
);
Assert.True
(
pentagon ==
H3UniEdge.getOriginH3IndexFromUnidirectionalEdge(edges[i]),
"origin is correct"
);
Assert.True
(
pentagon !=
H3UniEdge.getDestinationH3IndexFromUnidirectionalEdge(edges[i]),
"destination is not origin"
);
}
}
Assert.True
(
missingEdgeCount == 1,
"Only one edge was deleted for the pentagon"
);
}