public static GameObject Update(this GameObject go, Element element, UnityEngine.Material material)
{
var goMeshFilter = go.GetComponent <MeshFilter>();
var goRenderer = go.GetComponent <MeshRenderer>();
goRenderer.material = material;
var goMesh = goMeshFilter.mesh;
goMesh.Clear();
// var o = element.Transform.Origin.ToUnityVector3();
var verts = new List <UnityEngine.Vector3>();
var tris = new List <int>();
if (element is IGeometry3D)
{
var tess = (IGeometry3D)element;
var mesh = new Elements.Geometry.Mesh();
tess.Geometry[0].Tessellate(ref mesh);
verts.AddRange(mesh.Vertices.ToArray().ToUnityVertices(element.Transform));
tris.AddRange(mesh.Indices.Select(idx => (int)idx));
}
goMesh.vertices = verts.ToArray();
goMesh.triangles = tris.ToArray();
goMesh.RecalculateNormals();
return(go);
}
public static GameObject ToGameObject(this Element element, GameObject parent, UnityEngine.Material material)
{
var go = new GameObject($"hypar_{element.Id}");
var goMeshFilter = go.AddComponent <MeshFilter>();
var goRenderer = go.AddComponent <MeshRenderer>();
goRenderer.material = material;
var goMesh = new UnityEngine.Mesh();
goMeshFilter.mesh = goMesh;
go.transform.SetParent(parent.transform, false);
var verts = new List <UnityEngine.Vector3>();
var tris = new List <int>();
if (element is IGeometry3D)
{
var geo = (IGeometry3D)element;
var mesh = new Elements.Geometry.Mesh();
geo.Geometry[0].Tessellate(ref mesh);
verts.AddRange(mesh.Vertices.ToArray().ToUnityVertices(element.Transform));
tris.AddRange(mesh.Indices.Select(idx => (int)idx));
}
goMesh.vertices = verts.ToArray();
goMesh.triangles = tris.ToArray();
goMesh.RecalculateNormals();
return(go);
}
private void GetRenderDataForElement(IElement e, Gltf gltf, Dictionary <string, int> materials, List <Vector3> lines)
{
if (e is IGeometry3D)
{
var geo = e as IGeometry3D;
Elements.Geometry.Mesh mesh = null;
foreach (var solid in geo.Geometry)
{
foreach (var edge in solid.Edges.Values)
{
if (e.Transform != null)
{
lines.AddRange(new[] { e.Transform.OfVector(edge.Left.Vertex.Point), e.Transform.OfVector(edge.Right.Vertex.Point) });
}
else
{
lines.AddRange(new[] { edge.Left.Vertex.Point, edge.Right.Vertex.Point });
}
}
mesh = new Elements.Geometry.Mesh();
solid.Tessellate(ref mesh);
gltf.AddTriangleMesh(e.Id + "_mesh", _buffer, mesh.Vertices.ToArray(), mesh.Normals.ToArray(),
mesh.Indices.ToArray(), mesh.VMin, mesh.VMax, mesh.NMin, mesh.NMax,
mesh.IMin, mesh.IMax, materials[solid.Material.Name], null, e.Transform);
}
}
if (e is IAggregateElement)
{
var ae = (IAggregateElement)e;
if (ae.Elements.Count > 0)
{
foreach (var esub in ae.Elements)
{
GetRenderDataForElement(esub, gltf, materials, lines);
}
}
}
}
public static Elements.Geometry.Mesh ToMesh(this MeshData vMesh)
{
var mesh = new Elements.Geometry.Mesh();
var vertices = new List <Vertex>();
for (int i = 0; i < vMesh.points.length; i++)
{
var pt = (vMesh.points[i] as Array <double>).ToVector3();
var normal = (vMesh.normals[i] as Array <double>).ToVector3();
var vertex = new Vertex(pt, normal);
vertices.Add(vertex);
mesh.AddVertex(vertex);
}
Console.WriteLine(vertices.Count);
for (int i = 0; i < vMesh.faces.length; i++)
{
var face = vMesh.faces[i] as Array <int>;
mesh.AddTriangle(vertices[face[2]], vertices[face[1]], vertices[face[0]]);
}
return(mesh);
}
/// <summary>
/// Generates a Roof from a DXF Polyline and supplied elevation and thickness values.
/// </summary>
/// <param name="model">The input model.</param>
/// <param name="input">The arguments to the execution.</param>
/// <returns>A RoofByDXFOutputs instance containing computed results and the model with any new elements.</returns>
public static RoofByDXFOutputs Execute(Dictionary <string, Model> inputModels, RoofByDXFInputs input)
{
DxfFile dxfFile;
using (FileStream fs = new FileStream(input.DXF.LocalFilePath, FileMode.Open))
{
dxfFile = DxfFile.Load(fs);
}
var polygons = new List <Polygon>();
foreach (DxfEntity entity in dxfFile.Entities)
{
if (entity.EntityType != DxfEntityType.LwPolyline)
{
continue;
}
var pline = (DxfLwPolyline)entity;
if (pline.IsClosed == false)
{
continue;
}
var vertices = pline.Vertices.ToList();
var verts = new List <Vector3>();
vertices.ForEach(v => verts.Add(new Vector3(v.X, v.Y)));
polygons.Add(new Polygon(verts));
}
if (polygons.Count == 0)
{
throw new ArgumentException("No LWPolylines found in DXF.");
}
var highPoint = input.RoofElevation + input.RoofThickness;
polygons = polygons.OrderByDescending(p => Math.Abs(p.Area())).ToList();
var polygon = polygons.First().IsClockWise() ? polygons.First().Reversed() : polygons.First();
polygon = polygon.TransformedPolygon(new Transform(0.0, 0.0, highPoint));
var underBoundary = polygon.TransformedPolygon(new Transform(0.0, 0.0, input.RoofThickness * -1.0));
var ePoints = polygon.Vertices.ToList();
var uPoints = underBoundary.Vertices.ToList();
var topSide = polygon.ToMesh(true);
var underSide = underBoundary.ToMesh(false);
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])));
}
// Create an aggregated list of Triangles representing the Roof envelope.
var envTriangles = new List <Elements.Geometry.Triangle>();
topSide.Triangles.ForEach(t => envTriangles.Add(t));
underSide.Triangles.ForEach(t => envTriangles.Add(t));
sideTriangles.ForEach(t => envTriangles.Add(t));
// Create an aggregated list of Vertices representing the Roof envelope.
var enVertices = new List <Vertex>();
envTriangles.ForEach(t => enVertices.AddRange(t.Vertices));
// Construct the roof envelope in Elements.Geometry.mesh form.
var Envelope = new Elements.Geometry.Mesh();
envTriangles.ForEach(t => Envelope.AddTriangle(t));
enVertices.ForEach(v => Envelope.AddVertex(v));
Envelope.ComputeNormals();
// Construct serializable topside mesh
var triangles = new List <triangles>();
var indices = new List <vertices>();
var tsIV = topSide.ToIndexedVertices();
tsIV.triangles.ForEach(t => triangles.Add(new triangles(t)));
tsIV.vertices.ForEach(v => indices.Add(new vertices(v.index, v.isBoundary, v.position)));
var topside = new Elements.Mesh(triangles, indices);
// Construct serializable underside mesh
triangles.Clear();
indices.Clear();
var usIV = underSide.ToIndexedVertices();
usIV.triangles.ForEach(t => triangles.Add(new triangles(t)));
usIV.vertices.ForEach(v => indices.Add(new vertices(v.index, v.isBoundary, v.position)));
var underside = new Elements.Mesh(triangles, indices);
// Construct serializable envelope mesh
triangles.Clear();
indices.Clear();
var enIV = Envelope.ToIndexedVertices();
enIV.triangles.ForEach(t => triangles.Add(new triangles(t)));
enIV.vertices.ForEach(v => indices.Add(new vertices(v.index, v.isBoundary, v.position)));
var envelope = new Elements.Mesh(triangles, indices);
var roof =
new Roof(
envelope,
topside,
underside,
underBoundary,
input.RoofElevation,
highPoint,
input.RoofThickness,
polygon.Area(),
new Transform(),
BuiltInMaterials.Concrete,
null, false, Guid.NewGuid(), "Roof");
var output = new RoofByDXFOutputs(polygon.Area());
output.Model.AddElement(new MeshElement(Envelope, BuiltInMaterials.Concrete));
output.Model.AddElement(roof);
return(output);
}
internal static void ToGlb(this Solid solid, string path)
{
var gltf = new Gltf();
var asset = new Asset();
asset.Version = "2.0";
asset.Generator = "hypar-gltf";
gltf.Asset = asset;
var root = new Node();
root.Translation = new[] { 0.0f, 0.0f, 0.0f };
root.Scale = new[] { 1.0f, 1.0f, 1.0f };
// Set Z up by rotating -90d around the X Axis
var q = new Quaternion(new Vector3(1, 0, 0), -Math.PI / 2);
root.Rotation = new[] {
(float)q.X, (float)q.Y, (float)q.Z, (float)q.W
};
gltf.Nodes = new[] { root };
gltf.Scene = 0;
var scene = new Scene();
scene.Nodes = new[] { 0 };
gltf.Scenes = new[] { scene };
gltf.ExtensionsUsed = new[] { "KHR_materials_pbrSpecularGlossiness" };
var materials = gltf.AddMaterials(new[] { BuiltInMaterials.Default, BuiltInMaterials.Edges, BuiltInMaterials.EdgesHighlighted });
var buffer = new List <byte>();
var mesh = new Elements.Geometry.Mesh();
solid.Tessellate(ref mesh);
gltf.AddTriangleMesh("mesh", buffer, mesh.Vertices.ToArray(), mesh.Normals.ToArray(),
mesh.Indices.ToArray(), mesh.VertexColors.ToArray(),
mesh.VMin, mesh.VMax, mesh.NMin, mesh.NMax, mesh.CMin, mesh.CMax,
mesh.IMin, mesh.IMax, materials[BuiltInMaterials.Default.Name], null, null);
var edgeCount = 0;
var vertices = new List <Vector3>();
var verticesHighlighted = new List <Vector3>();
foreach (var e in solid.Edges.Values)
{
if (e.Left.Loop == null || e.Right.Loop == null)
{
verticesHighlighted.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
else
{
vertices.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
edgeCount++;
}
if (vertices.Count > 0)
{
// Draw standard edges
var vBuff = vertices.ToArray().ToArray();
var vCount = vertices.Count;
// var indices = Enumerable.Range(0, vCount).Select(i => (ushort)i).ToArray();
var indices = new List <ushort>();
for (var i = 0; i < vertices.Count; i += 2)
{
indices.Add((ushort)i);
indices.Add((ushort)(i + 1));
}
var bbox = new BBox3(vertices.ToArray());
gltf.AddLineLoop($"edge_{edgeCount}", buffer, vBuff, indices.ToArray(), bbox.Min.ToArray(), bbox.Max.ToArray(), 0, (ushort)(vCount - 1), materials[BuiltInMaterials.Edges.Name], MeshPrimitive.ModeEnum.LINES, null);
}
if (verticesHighlighted.Count > 0)
{
// Draw highlighted edges
var vBuff = vertices.ToArray().ToArray();
var vCount = vertices.Count;
var indices = new List <ushort>();
for (var i = 0; i < vertices.Count; i += 2)
{
indices.Add((ushort)i);
indices.Add((ushort)(i + 1));
}
var bbox = new BBox3(vertices.ToArray());
gltf.AddLineLoop($"edge_{edgeCount}", buffer, vBuff, indices.ToArray(), bbox.Min.ToArray(), bbox.Max.ToArray(), 0, (ushort)(vCount - 1), materials[BuiltInMaterials.EdgesHighlighted.Name], MeshPrimitive.ModeEnum.LINES, null);
}
var buff = new glTFLoader.Schema.Buffer();
buff.ByteLength = buffer.Count;
gltf.Buffers = new[] { buff };
if (File.Exists(path))
{
File.Delete(path);
}
gltf.SaveBinaryModel(buffer.ToArray(), path);
}
private static void GetRenderDataForElement(IElement e, Gltf gltf,
Dictionary <string, int> materials, List <Vector3> lines, List <byte> buffer)
{
if (e is IGeometry3D)
{
var geo = e as IGeometry3D;
Elements.Geometry.Mesh mesh = null;
foreach (var solid in geo.Geometry)
{
foreach (var edge in solid.Edges.Values)
{
if (e.Transform != null)
{
lines.AddRange(new[] { e.Transform.OfPoint(edge.Left.Vertex.Point), e.Transform.OfPoint(edge.Right.Vertex.Point) });
}
else
{
lines.AddRange(new[] { edge.Left.Vertex.Point, edge.Right.Vertex.Point });
}
}
mesh = new Elements.Geometry.Mesh();
solid.Tessellate(ref mesh);
double[] vertexBuffer;
double[] normalBuffer;
ushort[] indexBuffer;
float[] colorBuffer;
double[] vmin; double[] vmax;
double[] nmin; double[] nmax;
float[] cmin; float[] cmax;
ushort imin; ushort imax;
mesh.GetBuffers(out vertexBuffer, out indexBuffer, out normalBuffer, out colorBuffer,
out vmax, out vmin, out nmin, out nmax, out cmin,
out cmax, out imin, out imax);
gltf.AddTriangleMesh(e.Id + "_mesh", buffer, vertexBuffer, normalBuffer,
indexBuffer, colorBuffer, vmin, vmax, nmin, nmax,
imin, imax, materials[solid.Material.Name], cmin, cmax, null, e.Transform);
}
}
if (e is ITessellate)
{
var geo = (ITessellate)e;
var mesh = new Elements.Geometry.Mesh();
geo.Tessellate(ref mesh);
double[] vertexBuffer;
double[] normalBuffer;
ushort[] indexBuffer;
float[] colorBuffer;
double[] vmin; double[] vmax;
double[] nmin; double[] nmax;
float[] cmin; float[] cmax;
ushort imin; ushort imax;
mesh.GetBuffers(out vertexBuffer, out indexBuffer, out normalBuffer, out colorBuffer,
out vmax, out vmin, out nmin, out nmax, out cmin,
out cmax, out imin, out imax);
gltf.AddTriangleMesh(e.Id + "_mesh", buffer, vertexBuffer, normalBuffer,
indexBuffer, colorBuffer, vmin, vmax, nmin, nmax,
imin, imax, materials[((IMaterial)e).Material.Name], cmin, cmax, null, e.Transform);
}
if (e is IAggregateElement)
{
var ae = (IAggregateElement)e;
if (ae.Elements.Count > 0)
{
foreach (var esub in ae.Elements)
{
GetRenderDataForElement(esub, gltf, materials, lines, buffer);
}
}
}
}
private static void ProcessSolid(Solid solid, Transform t, string id, string materialName, ref Gltf gltf,
ref Dictionary <string, int> materials, ref List <List <Vector3> > lines, ref List <byte> buffer,
List <BufferView> bufferViews, List <Accessor> accessors)
{
Elements.Geometry.Mesh mesh = null;
var currLines = lines.Last();
foreach (var edge in solid.Edges.Values)
{
// Check if we'll overrun the index size
// for the current line array. If so,
// create a new line array.
if (currLines.Count + 2 > ushort.MaxValue)
{
// Console.WriteLine($"Creating new line array at {currLines.Count}.");
currLines = new List <Vector3>();
lines.Add(currLines);
}
if (t != null)
{
currLines.AddRange(new[] { t.OfPoint(edge.Left.Vertex.Point), t.OfPoint(edge.Right.Vertex.Point) });
}
else
{
currLines.AddRange(new[] { edge.Left.Vertex.Point, edge.Right.Vertex.Point });
}
}
// var sw = new Stopwatch();
// sw.Start();
mesh = new Elements.Geometry.Mesh();
solid.Tessellate(ref mesh);
// sw.Stop();
// Console.WriteLine($"glTF:\t\t{sw.Elapsed} for tessellating the solid.");
// sw.Reset();
// sw.Start();
byte[] vertexBuffer;
byte[] normalBuffer;
byte[] indexBuffer;
byte[] colorBuffer;
double[] vmin; double[] vmax;
double[] nmin; double[] nmax;
float[] cmin; float[] cmax;
ushort imin; ushort imax;
mesh.GetBuffers(out vertexBuffer, out indexBuffer, out normalBuffer, out colorBuffer,
out vmax, out vmin, out nmin, out nmax, out cmin,
out cmax, out imin, out imax);
// sw.Stop();
// Console.WriteLine($"glTF:\t\t{sw.Elapsed} for getting the mesh buffers.");
// sw.Reset();
// sw.Start();
gltf.AddTriangleMesh(id + "_mesh", buffer, bufferViews, accessors, vertexBuffer, normalBuffer,
indexBuffer, colorBuffer, vmin, vmax, nmin, nmax,
imin, imax, materials[materialName], cmin, cmax, null, t);
// sw.Stop();
// Console.WriteLine($"glTF:\t\t{sw.Elapsed} for adding a triangle mesh.");
// sw.Reset();
}
private static void GetRenderDataForElement(IElement e, Gltf gltf,
Dictionary <string, int> materials, List <List <Vector3> > lines, List <byte> buffer, List <BufferView> bufferViews, List <Accessor> accessors)
{
// var sw = new Stopwatch();
// sw.Start();
if (e is IAggregateElements)
{
var ae = (IAggregateElements)e;
if (ae.Elements.Count > 0)
{
for (var i = 0; i < ae.Elements.Count; i++)
{
var esub = ae.Elements[i];
GetRenderDataForElement(esub, gltf, materials, lines, buffer, bufferViews, accessors);
}
}
}
// sw.Stop();
// Console.WriteLine($"glTF:\t{sw.Elapsed} for processing aggregates");
// sw.Reset();
// sw.Start();
var materialName = BuiltInMaterials.Default.Name;
if (e is IElementType <StructuralFramingType> )
{
// Get the material from the framing type's material.
materialName = ((IElementType <StructuralFramingType>)e).ElementType.Material.Name;
}
if (e is IElementType <WallType> )
{
// Get the material from the first layer of the wall.
materialName = ((IElementType <WallType>)e).ElementType.MaterialLayers[0].Material.Name;
}
if (e is IElementType <FloorType> )
{
// Get the material from the first layer of the floor.
materialName = ((IElementType <FloorType>)e).ElementType.MaterialLayers[0].Material.Name;
}
if (e is IMaterial)
{
// Get the material from the material property.
materialName = ((IMaterial)e).Material.Name;
}
// sw.Stop();
// Console.WriteLine($"glTF:\t{sw.Elapsed} for getting the material name.");
// sw.Reset();
// sw.Start();
Solid solid = null;
if (e is ISolid)
{
// Element already has a solid representation.
var geo = e as ISolid;
solid = geo.GetUpdatedSolid();
}
// sw.Stop();
// Console.WriteLine($"glTF:\t{sw.Elapsed} for updating element solids.");
// sw.Reset();
// sw.Start();
if (solid != null)
{
ProcessSolid(solid, e.Transform, e.Id.ToString(), materialName, ref gltf,
ref materials, ref lines, ref buffer, bufferViews, accessors);
}
// sw.Stop();
// Console.WriteLine($"glTF:\t{sw.Elapsed} for processing element solids.");
// sw.Reset();
if (e is ITessellate)
{
var geo = (ITessellate)e;
var mesh = new Elements.Geometry.Mesh();
geo.Tessellate(ref mesh);
byte[] vertexBuffer;
byte[] normalBuffer;
byte[] indexBuffer;
byte[] colorBuffer;
double[] vmin; double[] vmax;
double[] nmin; double[] nmax;
float[] cmin; float[] cmax;
ushort imin; ushort imax;
mesh.GetBuffers(out vertexBuffer, out indexBuffer, out normalBuffer, out colorBuffer,
out vmax, out vmin, out nmin, out nmax, out cmin,
out cmax, out imin, out imax);
gltf.AddTriangleMesh(e.Id + "_mesh", buffer, bufferViews, accessors, vertexBuffer, normalBuffer,
indexBuffer, colorBuffer, vmin, vmax, nmin, nmax,
imin, imax, materials[materialName], cmin, cmax, null, e.Transform);
}
}
internal static void ToGlb(this Solid solid, string path)
{
var gltf = new Gltf();
var asset = new Asset();
asset.Version = "2.0";
asset.Generator = "hypar-gltf";
gltf.Asset = asset;
var root = new Node();
root.Translation = new[] { 0.0f, 0.0f, 0.0f };
root.Scale = new[] { 1.0f, 1.0f, 1.0f };
// Set Z up by rotating -90d around the X Axis
var q = new Quaternion(new Vector3(1, 0, 0), -Math.PI / 2);
root.Rotation = new[] {
(float)q.X, (float)q.Y, (float)q.Z, (float)q.W
};
gltf.Nodes = new[] { root };
gltf.Scene = 0;
var scene = new Scene();
scene.Nodes = new[] { 0 };
gltf.Scenes = new[] { scene };
gltf.ExtensionsUsed = new[] { "KHR_materials_pbrSpecularGlossiness" };
var materials = gltf.AddMaterials(new[] { BuiltInMaterials.Default, BuiltInMaterials.Edges, BuiltInMaterials.EdgesHighlighted });
var buffer = new List <byte>();
var mesh = new Elements.Geometry.Mesh();
solid.Tessellate(ref mesh);
byte[] vertexBuffer;
byte[] normalBuffer;
byte[] indexBuffer;
byte[] colorBuffer;
double[] vmin; double[] vmax;
double[] nmin; double[] nmax;
float[] cmin; float[] cmax;
ushort imin; ushort imax;
mesh.GetBuffers(out vertexBuffer, out indexBuffer, out normalBuffer, out colorBuffer,
out vmax, out vmin, out nmin, out nmax, out cmin,
out cmax, out imin, out imax);
var bufferViews = new List <BufferView>();
var accessors = new List <Accessor>();
gltf.AddTriangleMesh("mesh", buffer, bufferViews, accessors, vertexBuffer, normalBuffer,
indexBuffer, colorBuffer, vmin, vmax, nmin, nmax,
imin, imax, materials[BuiltInMaterials.Default.Name], cmin, cmax, null, null);
var edgeCount = 0;
var vertices = new List <Vector3>();
var verticesHighlighted = new List <Vector3>();
foreach (var e in solid.Edges.Values)
{
if (e.Left.Loop == null || e.Right.Loop == null)
{
verticesHighlighted.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
else
{
vertices.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
edgeCount++;
}
if (vertices.Count > 0)
{
// Draw standard edges
AddLines(100000, vertices.ToArray(), gltf, materials[BuiltInMaterials.Edges.Name], buffer, bufferViews, accessors);
}
if (verticesHighlighted.Count > 0)
{
// Draw highlighted edges
AddLines(100001, verticesHighlighted.ToArray(), gltf, materials[BuiltInMaterials.EdgesHighlighted.Name], buffer, bufferViews, accessors);
}
var buff = new glTFLoader.Schema.Buffer();
buff.ByteLength = buffer.Count;
gltf.Buffers = new[] { buff };
gltf.BufferViews = bufferViews.ToArray();
gltf.Accessors = accessors.ToArray();
if (File.Exists(path))
{
File.Delete(path);
}
gltf.SaveBinaryModel(buffer.ToArray(), path);
}
private static void GetRenderDataForElement(Element e,
Gltf gltf,
Dictionary <string, int> materials,
List <byte> buffer,
List <BufferView> bufferViews,
List <Accessor> accessors,
List <glTFLoader.Schema.Mesh> meshes,
List <glTFLoader.Schema.Node> nodes,
Dictionary <Guid, List <int> > meshElementMap,
List <Vector3> lines,
bool drawEdges)
{
var materialName = BuiltInMaterials.Default.Name;
int meshId = -1;
if (e is GeometricElement)
{
var geom = (GeometricElement)e;
materialName = geom.Material.Name;
geom.UpdateRepresentations();
if (geom.Representation != null)
{
foreach (var solidOp in geom.Representation.SolidOperations)
{
if (solidOp.Solid != null)
{
meshId = ProcessSolid(solidOp.Solid,
e.Id.ToString(),
materialName,
ref gltf,
ref materials,
ref buffer,
bufferViews,
accessors,
meshes,
lines,
geom.IsElementDefinition ? false : drawEdges,
geom.Transform);
if (!meshElementMap.ContainsKey(e.Id))
{
meshElementMap.Add(e.Id, new List <int>());
}
meshElementMap[e.Id].Add(meshId);
if (!geom.IsElementDefinition)
{
CreateNodeForMesh(gltf, meshId, nodes, geom.Transform);
}
}
}
}
}
if (e is ElementInstance)
{
var i = (ElementInstance)e;
// Lookup the corresponding mesh in the map.
AddInstanceMesh(gltf, nodes, meshElementMap[i.BaseDefinition.Id], i.Transform);
if (drawEdges)
{
// Get the edges for the solid
var geom = i.BaseDefinition;
if (geom.Representation != null)
{
foreach (var solidOp in geom.Representation.SolidOperations)
{
if (solidOp.Solid != null)
{
foreach (var edge in solidOp.Solid.Edges.Values)
{
lines.AddRange(new[] { i.Transform.OfVector(edge.Left.Vertex.Point), i.Transform.OfVector(edge.Right.Vertex.Point) });
}
}
}
}
}
}
if (e is ModelCurve)
{
var mc = (ModelCurve)e;
AddLines(GetNextId(), mc.Curve.RenderVertices(), gltf, materials[mc.Material.Name], buffer, bufferViews, accessors, meshes, nodes, true, mc.Transform);
}
if (e is ModelPoints)
{
var mp = (ModelPoints)e;
if (mp.Locations.Count != 0)
{
AddPoints(GetNextId(), mp.Locations, gltf, materials[mp.Material.Name], buffer, bufferViews, accessors, meshes, nodes, mp.Transform);
}
}
if (e is ITessellate)
{
var geo = (ITessellate)e;
var mesh = new Elements.Geometry.Mesh();
geo.Tessellate(ref mesh);
if (mesh == null)
{
return;
}
byte[] vertexBuffer;
byte[] normalBuffer;
byte[] indexBuffer;
byte[] colorBuffer;
byte[] uvBuffer;
double[] vmin; double[] vmax;
double[] nmin; double[] nmax;
float[] cmin; float[] cmax;
ushort imin; ushort imax;
double[] uvmin; double[] uvmax;
mesh.GetBuffers(out vertexBuffer,
out indexBuffer,
out normalBuffer,
out colorBuffer,
out uvBuffer,
out vmax,
out vmin,
out nmin,
out nmax,
out cmin,
out cmax,
out imin,
out imax,
out uvmax,
out uvmin);
// TODO(Ian): Remove this cast to GeometricElement when we
// consolidate mesh under geometric representations.
meshId = gltf.AddTriangleMesh(e.Id + "_mesh",
buffer,
bufferViews,
accessors,
vertexBuffer,
normalBuffer,
indexBuffer,
colorBuffer,
uvBuffer,
vmin,
vmax,
nmin,
nmax,
imin,
imax,
uvmax,
uvmin,
materials[materialName],
cmin,
cmax,
null,
meshes);
if (!meshElementMap.ContainsKey(e.Id))
{
meshElementMap.Add(e.Id, new List <int>());
}
meshElementMap[e.Id].Add(meshId);
var geom = (GeometricElement)e;
if (!geom.IsElementDefinition)
{
CreateNodeForMesh(gltf, meshId, nodes, geom.Transform);
}
}
}
/// <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);
}
