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 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);
}