public void AdaptiveGridTwoAlignedSections()
{
var adaptiveGrid = new AdaptiveGrid(new Transform());
var polygon1 = Polygon.Rectangle(new Vector3(0, 0), new Vector3(10, 10));
var polygon2 = Polygon.Rectangle(new Vector3(10, 2), new Vector3(20, 12));
var points = new List <Vector3>();
points.AddRange(polygon1.Vertices);
points.AddRange(polygon2.Vertices);
adaptiveGrid.AddFromExtrude(polygon1, Vector3.ZAxis, 2, points);
adaptiveGrid.AddFromExtrude(polygon2, Vector3.ZAxis, 2, points);
ulong id;
Assert.True(adaptiveGrid.TryGetVertexIndex(new Vector3(10, 2), out id));
var vertex = adaptiveGrid.GetVertex(id);
//Up, North, South, East, West
Assert.Equal(5, vertex.Edges.Count);
Assert.True(adaptiveGrid.TryGetVertexIndex(new Vector3(10, 10), out id));
vertex = adaptiveGrid.GetVertex(id);
Assert.Equal(5, vertex.Edges.Count);
}
public void AdaptiveGridAddVertex()
{
var adaptiveGrid = new AdaptiveGrid(new Transform());
var points = new List <Vector3>()
{
new Vector3(-6, -4),
new Vector3(-2, -4),
new Vector3(3, -4),
new Vector3(1, 4.5, 3),
new Vector3(6, 3, -2),
};
adaptiveGrid.AddFromPolygon(Polygon.Rectangle(15, 10), points);
ulong id;
Assert.True(adaptiveGrid.TryGetVertexIndex(new Vector3(-2, -4), out id));
var oldV = adaptiveGrid.GetVertex(id);
var edgesBefore = oldV.Edges.Count;
var newV = adaptiveGrid.AddVertex(new Vector3(-2, -4, 2), new List <Vertex> {
oldV
});
Assert.NotNull(newV);
Assert.False(newV.Id == 0);
Assert.Single(newV.Edges);
Assert.True(newV.Edges.First().StartId == id || newV.Edges.First().EndId == id);
Assert.Equal(edgesBefore + 1, oldV.Edges.Count());
Assert.Contains(oldV.Edges, e => e.StartId == newV.Id || e.EndId == newV.Id);
}
public void AdaptiveGridSubtractBoxKeepEdges()
{
var adaptiveGrid = new AdaptiveGrid(new Transform());
var polygon = Polygon.Rectangle(new Vector3(0, 0), new Vector3(10, 10));
var points = new List <Vector3>();
for (int i = 1; i < 10; i++)
{
points.Add(new Vector3(i, i, 1));
}
adaptiveGrid.AddFromExtrude(polygon, Vector3.ZAxis, 2, points);
Assert.True(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 5, 1), out _));
Assert.False(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 4.9, 1), out _));
var numVertices = adaptiveGrid.GetVertices().Count;
var box = new BBox3(new Vector3(4.9, 4.9, 0), new Vector3(5.1, 5.1, 2));
adaptiveGrid.SubtractBox(box, false);
Assert.False(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 5, 1), out _));
Assert.True(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 4.9, 1), out var cutEdgeId));
var v = adaptiveGrid.GetVertex(cutEdgeId);
Assert.Single(v.Edges);
adaptiveGrid.TryGetVertexIndex(new Vector3(5, 4, 1), out var borderId);
Assert.True(v.Edges.First().StartId == borderId || v.Edges.First().EndId == borderId);
//On each elevation one vertex is removed but 4 added
Assert.Equal(numVertices + (3 * (4 - 1)), adaptiveGrid.GetVertices().Count);
}
public void AdaptiveGridSubtractBoxCutEdges()
{
var adaptiveGrid = new AdaptiveGrid(new Transform());
var polygon = Polygon.Rectangle(new Vector3(0, 0), new Vector3(10, 10));
var points = new List <Vector3>();
for (int i = 1; i < 10; i++)
{
points.Add(new Vector3(i, i, 1));
}
adaptiveGrid.AddFromExtrude(polygon, Vector3.ZAxis, 2, points);
Assert.True(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 5, 1), out _));
Assert.False(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 4.9, 1), out _));
adaptiveGrid.TryGetVertexIndex(new Vector3(5, 4, 1), out var borderId);
var borderV = adaptiveGrid.GetVertex(borderId);
var numEdges = borderV.Edges.Count;
var numVertices = adaptiveGrid.GetVertices().Count;
var box = new BBox3(new Vector3(4.9, 4.9, 0), new Vector3(5.1, 5.1, 2));
adaptiveGrid.SubtractBox(box, true);
Assert.False(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 5, 1), out _));
Assert.False(adaptiveGrid.TryGetVertexIndex(new Vector3(5, 4.9, 1), out _));
Assert.Equal(numEdges - 1, borderV.Edges.Count);
//On each elevation one vertex is removed and no added
Assert.Equal(numVertices - (3 * 1), adaptiveGrid.GetVertices().Count);
}
public void AdaptiveGridDoesntAddTheSameVertex()
{
var adaptiveGrid = new AdaptiveGrid(new Transform());
var polygon = Polygon.Rectangle(new Vector3(0, 0), new Vector3(10, 10));
adaptiveGrid.AddFromPolygon(polygon, new List <Vector3>());
Assert.True(adaptiveGrid.TryGetVertexIndex(new Vector3(0, 10), out var id));
var vertex = adaptiveGrid.GetVertex(id);
var halfTol = adaptiveGrid.Tolerance / 2;
var modified = vertex.Point + new Vector3(0, 0, halfTol);
adaptiveGrid.TryGetVertexIndex(new Vector3(10, 0), out var otherId);
var newVertex = adaptiveGrid.AddVertex(modified,
new List <Vertex> {
adaptiveGrid.GetVertex(otherId)
});
Assert.Equal(id, newVertex.Id);
modified = vertex.Point + new Vector3(-halfTol, -halfTol, -halfTol);
adaptiveGrid.TryGetVertexIndex(modified, out otherId, adaptiveGrid.Tolerance);
Assert.Equal(id, otherId);
}