public void Test_S1ChordAngle_Successor()
{
Assert.Equal(S1ChordAngle.Zero, S1ChordAngle.Negative.Successor());
Assert.Equal(S1ChordAngle.Infinity, S1ChordAngle.Straight.Successor());
Assert.Equal(S1ChordAngle.Infinity, S1ChordAngle.Infinity.Successor());
S1ChordAngle x = S1ChordAngle.Negative;
for (int i = 0; i < 10; ++i)
{
Assert.True(x < x.Successor());
x = x.Successor();
}
}
// Equivalent to the constructor above.
public void Init(S2ShapeIndex index, S1ChordAngle radius)
{
Radius = radius;
radius_successor_ = radius.Successor();
query_.Init(index);
query_.Options_.IncludeInteriors = (true);
}
// Constructs a region representing all points within the given radius of
// any point in the given S2ShapeIndex.
public S2ShapeIndexBufferedRegion(S2ShapeIndex index, S1ChordAngle radius)
{
Radius = radius;
radius_successor_ = radius.Successor();
query_ = new S2ClosestEdgeQuery(index);
query_.Options_.IncludeInteriors = (true);
}
public void Test_S2_UpdateMinInteriorDistanceLowerBoundOptimizationIsConservative()
{
// Verifies that AlwaysUpdateMinInteriorDistance() computes the lower bound
// on the true distance conservatively. (This test used to fail.)
S2Point x = new(-0.017952729194524016, -0.30232422079175203, 0.95303607751077712);
S2Point a = new(-0.017894725505830295, -0.30229974986194175, 0.95304493075220664);
S2Point b = new(-0.017986591360900289, -0.30233851195954353, 0.95303090543659963);
S1ChordAngle min_distance = S1ChordAngle.Infinity;
Assert.True(S2.UpdateMinDistance(x, a, b, ref min_distance));
min_distance = min_distance.Successor();
Assert.True(S2.UpdateMinDistance(x, a, b, ref min_distance));
}