/// <summary>
/// Creates a Roof from a supplied Polygon sketch and a supplied elevation.
/// </summary>
/// <param name="model">The input model.</param>
/// <param name="input">The arguments to the execution.</param>
/// <returns>A RoofBySketchOutputs instance containing computed results and the model with any new elements.</returns>
public static RoofBySketchOutputs Execute(Dictionary <string, Model> inputModels, RoofBySketchInputs input)
{
var extrude = new Elements.Geometry.Solids.Extrude(input.Perimeter, input.RoofThickness, Vector3.ZAxis, false);
var geomRep = new Representation(new List <Elements.Geometry.Solids.SolidOperation>()
{
extrude
});
var roofMatl = BuiltInMaterials.Concrete;
var output = new RoofBySketchOutputs(input.Perimeter.Area());
output.Model.AddElement(new Roof(input.Perimeter,
input.RoofElevation,
input.RoofThickness,
input.Perimeter.Area(),
new Transform(0.0, 0.0, input.RoofElevation - input.RoofThickness),
roofMatl,
geomRep,
false,
Guid.NewGuid(), ""));
return(output);
}
/// <summary>
/// Creates a Roof from a supplied Polygon sketch and a supplied elevation.
/// </summary>
/// <param name="model">The input model.</param>
/// <param name="input">The arguments to the execution.</param>
/// <returns>A RoofBySketchOutputs instance containing computed results and the model with any new elements.</returns>
public static RoofBySketchOutputs Execute(Dictionary <string, Model> inputModels, RoofBySketchInputs input)
{
var topSide = new Elements.Geometry.Mesh();
var area = 0.0;
foreach (var triangle in input.Mesh.Triangles)
{
var a = topSide.AddVertex(triangle.Vertices[0].Position);
var b = topSide.AddVertex(triangle.Vertices[1].Position);
var c = topSide.AddVertex(triangle.Vertices[2].Position);
var triAng =
new Elements.Geometry.Triangle(a, b, c);
topSide.AddTriangle(triAng);
area += triAng.Area();
}
topSide.ComputeNormals();
// Find the Mesh's lowest point and use the
// roof thickness to the set the Roof's underside elevation.
var vertices = input.Mesh.Vertices.ToList();
vertices = vertices.OrderBy(v => v.Position.Z).ToList();
var elevation = vertices.First().Position.Z - input.Thickness;
// Find the topSide Mesh's perimeter points and use them to
// construct a Mesh representing the underside of the Roof.
var perimeter = topSide.EdgesPerimeters().First();
var ePoints = new List <Vector3>();
perimeter.ForEach(e => ePoints.AddRange(e.Points()));
ePoints = ePoints.Distinct().ToList();
var uPoints = new List <Vector3>();
ePoints.ForEach(p => uPoints.Add(new Vector3(p.X, p.Y, elevation)));
var underBoundary = new Polygon(uPoints);
var underSide = underBoundary.ToMesh(false);
// Use the topSide Mesh's edgePoints and the lower Mesh's underPoints
// to construct a series of triangles forming the sides of the Roof.
var sideTriangles = new List <Elements.Geometry.Triangle>();
for (var i = 0; i < ePoints.Count; i++)
{
sideTriangles.Add(
new Elements.Geometry.Triangle(new Vertex(ePoints[i]),
new Vertex(uPoints[i]),
new Vertex(uPoints[(i + 1) % uPoints.Count])));
sideTriangles.Add(
new Elements.Geometry.Triangle(new Vertex(ePoints[i]),
new Vertex(uPoints[(i + 1) % uPoints.Count]),
new Vertex(ePoints[(i + 1) % ePoints.Count])));
}
// Construct the roof envelope in Elements.Geometry.mesh form.
// We add vertices individually by position so that we don't affect
// the original vertices of hte individual faces
var Envelope = new Elements.Geometry.Mesh();
foreach (var t in topSide.Triangles)
{
var a = Envelope.AddVertex(t.Vertices[0].Position);
var b = Envelope.AddVertex(t.Vertices[1].Position);
var c = Envelope.AddVertex(t.Vertices[2].Position);
Envelope.AddTriangle(new Triangle(a, b, c));
}
foreach (var t in underSide.Triangles)
{
var a = Envelope.AddVertex(t.Vertices[0].Position);
var b = Envelope.AddVertex(t.Vertices[1].Position);
var c = Envelope.AddVertex(t.Vertices[2].Position);
Envelope.AddTriangle(new Triangle(a, b, c));
}
foreach (var t in sideTriangles)
{
var a = Envelope.AddVertex(t.Vertices[0].Position);
var b = Envelope.AddVertex(t.Vertices[1].Position);
var c = Envelope.AddVertex(t.Vertices[2].Position);
Envelope.AddTriangle(new Triangle(a, b, c));
}
// enVertices.ToList().ForEach(v => Envelope.AddVertex(v));
// envTriangles.ToList().ForEach(t => Envelope.AddTriangle(t));
Envelope.ComputeNormals();
//Record roof high point from topSide mesh.
var highPoint = topSide.Points().OrderByDescending(p => p.Z).First().Z;
// // code for when debugging the function.
// var envelope = MakeEnvelope();
// var topside = MakeTopside();
// var underside = MakeUnderside();
// var underBoundary = Polygon.Rectangle(20.0, 20.0);
// var elevation = 10.0;
// var highPoint = 15.0;
// var area = 100.0;
var roof =
new Roof(
Envelope,
topSide,
underSide,
underBoundary,
elevation,
highPoint,
input.Thickness,
area,
new Transform(),
BuiltInMaterials.Concrete,
null, false, Guid.NewGuid(), "Roof");
var output = new RoofBySketchOutputs(area);
output.Model.AddElement(new MeshElement(Envelope, BuiltInMaterials.Concrete));
output.Model.AddElement(roof);
return(output);
}
