/// <summary>
/// Initializes a new instance of the <see cref="Heightfield"/> class.
/// </summary>
/// <param name="b">The world-space bounds.</param>
/// <param name="cellSize">The world-space size of each cell in the XZ plane.</param>
/// <param name="cellHeight">The world-space height of each cell.</param>
public Heightfield(BBox3 b, float cellSize, float cellHeight)
{
if (!BBox3.IsValid(ref bounds))
{
throw new ArgumentException("The bounds are considered invalid. See BBox3.IsValid for details.");
}
if (cellSize <= 0)
{
throw new ArgumentOutOfRangeException("cellSize", "Cell size must be greater than 0.");
}
if (cellHeight <= 0)
{
throw new ArgumentOutOfRangeException("cellHeight", "Cell height must be greater than 0.");
}
this.cellSize = cellSize;
this.cellHeight = cellHeight;
this.bounds = b;
//make sure the bbox contains all the possible voxels.
width = (int)Math.Ceiling((b.Max.X - b.Min.X) / cellSize);
height = (int)Math.Ceiling((b.Max.Y - b.Min.Y) / cellHeight);
length = (int)Math.Ceiling((b.Max.Z - b.Min.Z) / cellSize);
bounds.Max.X = bounds.Min.X + width * cellSize;
bounds.Max.Y = bounds.Min.Y + height * cellHeight;
bounds.Max.Z = bounds.Min.Z + length * cellSize;
cells = new Cell[width * length];
for (int i = 0; i < cells.Length; i++)
{
cells[i] = new Cell(height);
}
}
public void BBoxesForElements()
{
Name = nameof(BBoxesForElements);
var elements = new List <Element>();
// mass with weird transform
elements.Add(new Mass(Polygon.Star(5, 3, 5), 1, null, new Transform(new Vector3(4, 3, 2), new Vector3(1, 1, 1))));
// element instances
var contentJson = @"
{
""discriminator"": ""Elements.ContentElement"",
""gltfLocation"": ""https://hypar-content-catalogs.s3-us-west-2.amazonaws.com/2290ea5e-98aa-429d-8fab-1f260458bf57/Steelcase+-+Convene+-+Conference+Table+Top+-+Boat+Shape+-+Flat+Profile+-+72D+x+216W.glb"",
""Bounding Box"": {
""discriminator"": ""Elements.Geometry.BBox3"",
""Min"": {
""X"": -2.7432066856384281,
""Y"": -0.91380708560943613,
""Z"": 0.68884799709320077
},
""Max"": {
""X"": 2.7432066856384281,
""Y"": 0.91380701293945321,
""Z"": 0.73660002422332771
}
},
""Gltf Scale to Meters"": 1.0,
""SourceDirection"": {
""X"": 0.0,
""Y"": 1.0,
""Z"": 0.0
},
""Transform"": {
""Matrix"": {
""Components"": [
1.0,
0.0,
0.0,
0.0,
0.0,
1.0,
0.0,
0.0,
0.0,
0.0,
1.0,
0.0
]
}
},
""Material"": {
""discriminator"": ""Elements.Material"",
""Color"": {
""Red"": 1.0,
""Green"": 1.0,
""Blue"": 1.0,
""Alpha"": 1.0
},
""SpecularFactor"": 0.0,
""GlossinessFactor"": 0.0,
""Unlit"": false,
""DoubleSided"": false,
""Id"": ""9babb829-9b96-4e73-97f4-9658d4d6c31c"",
""Name"": ""default""
},
""Representation"": null,
""IsElementDefinition"": true,
""Id"": ""8032b381-13c9-4870-803d-c4127c201b47"",
""Name"": ""Steelcase - Convene - Conference Table Top - Boat Shape - Flat Profile - 72D x 216W"",
""Elevation from Level"": 6.4392935428259079E-14,
""Host"": ""Level : Level 1"",
""Offset from Host"": 6.4392935428259079E-14,
""Moves With Nearby Elements"": 0,
""Opaque"": 1
}";
var contentElement = JsonConvert.DeserializeObject <ContentElement>(contentJson);
elements.Add(contentElement.CreateInstance(new Transform(-6, 0, 0), null));
elements.Add(contentElement.CreateInstance(new Transform(new Vector3(-8, 0, 0), 45), null));
// mesh
var meshElem = ConstructExampleMesh();
elements.Add(meshElem);
// model curves
var polygon = new Circle(4).ToPolygon(10).TransformedPolygon(new Transform(new Vector3(8, 8, 8), new Vector3(1, 0, 2)));
elements.Add(new ModelCurve(polygon));
// model points
var random = new System.Random();
var points = Enumerable.Range(0, 20).Select((i) => new Vector3(random.Next(15, 20), random.Next(15, 20), random.Next(15, 20))).ToList();
var modelPoints = new ModelPoints(points, BuiltInMaterials.XAxis);
elements.Add(modelPoints);
// profile
var profile = new Profile(new Circle(7).ToPolygon(10).TransformedPolygon(new Transform(new Vector3(8, 8, 8), new Vector3(1, 0, 2))));
var xzProfile = new Profile(new Circle(7).ToPolygon(10).TransformedPolygon(new Transform(new Vector3(-8, 8, 8), new Vector3(0, 1, 0))));
elements.Add(profile);
elements.Add(xzProfile);
Model.AddElements(profile.ToModelCurves());
Model.AddElements(xzProfile.ToModelCurves());
// non-geometric element
var invalidBBox = new BBox3(new Material("Red", Colors.Red));
Assert.False(invalidBBox.IsValid());
Model.AddElements(elements);
foreach (var element in elements)
{
var bbox = new BBox3(element);
Model.AddElements(bbox.ToModelCurves());
}
}
