public void Test_PointTarget_VisitContainingShapes()
{
// Only shapes 2 and 4 should contain the target point.
var index = MakeIndexOrDie(
"1:1 # 1:1, 2:2 # 0:0, 0:3, 3:0 | 6:6, 6:9, 9:6 | 0:0, 0:4, 4:0");
var target = new S2MinDistancePointTarget(MakePointOrDie("1:1"));
Assert.True(IsSubsetOfSize(GetContainingShapes(target, index, 1),
new int[] { 2, 4 }, 1));
Assert.Equal((new int[] { 2, 4 }), GetContainingShapes(target, index, 5));
}
public void Test_PointTarget_UpdateMinDistanceToCellWhenEqual()
{
// Verifies that UpdateMinDistance only returns true when the new distance
// is less than the old distance (not less than or equal to).
var target = new S2MinDistancePointTarget(MakePointOrDie("1:0"));
var dist = S1ChordAngle.Infinity;
S2Cell cell = new(new S2CellId(MakePointOrDie("0:0")));
Assert.True(target.UpdateMinDistance(cell, ref dist));
Assert.False(target.UpdateMinDistance(cell, ref dist));
}
public void Test_PointTarget_UpdateMinDistanceToEdgeWhenEqual()
{
// Verifies that UpdateMinDistance only returns true when the new distance
// is less than the old distance (not less than or equal to).
var target = new S2MinDistancePointTarget(MakePointOrDie("1:0"));
S1ChordAngle dist = S1ChordAngle.Infinity;
var edge = ParsePointsOrDie("0:-1, 0:1");
Assert.True(target.UpdateMinDistance(edge[0], edge[1], ref dist));
Assert.False(target.UpdateMinDistance(edge[0], edge[1], ref dist));
}
