void Triangulate(Vector3 normal, List <Vector3> points)
{
if (points.Count == 3)
{
Facet facet = new Facet
{
Normal = normal,
Vx1 = points[0],
Vx2 = points[1],
Vx3 = points[2]
};
Model.Facets.Add(facet);
}
else
{
Vector3 up = Vector3.Subtract(points[0], points[1]).Normalized();
Matrix4 mt = Matrix4.LookAt(normal, Vector3.Zero, up);
var projected = points.Select(x => Vector3.TransformPosition(x, mt));
List <float> data = projected.SelectMany(pt => new float[] { pt.X, pt.Y }).ToList();
IList <int> triangles = Tessellator.Tessellate(data);
for (int i = 0; i < triangles.Count; i += 3)
{
Facet facet = new Facet
{
Normal = normal,
Vx1 = points[triangles[i]],
Vx2 = points[triangles[i + 1]],
Vx3 = points[triangles[i + 2]]
};
Model.Facets.Add(facet);
}
}
}
private void Awake()
{
lineRenderer.positionCount = vertices.Count;
for (int i = 0; i < vertices.Count; i++)
{
lineRenderer.SetPosition(i, vertices[i]);
}
var tessellator = new Tessellator();
tessellator.AddContour(vertices);
tessellator.Tessellate(normal: Vector3.back);
meshFilter.mesh = tessellator.ToMesh();
}
public override MeshDraft Construct(Vector2 parentLayoutOrigin)
{
var roofDraft = ConstructRoofBase(out List <Vector2> roofPolygon2, out List <Vector3> roofPolygon3);
var tessellator = new Tessellator();
tessellator.AddContour(roofPolygon3);
tessellator.Tessellate(normal: Vector3.up);
var roofTop = tessellator.ToMeshDraft()
.Move(Vector3.up * roofConfig.thickness);
for (var i = 0; i < roofTop.vertexCount; i++)
{
roofTop.normals.Add(Vector3.up);
}
return(roofDraft.Add(roofTop)
.Paint(roofColor));
}
protected static MeshDraft ConstructContourDraft(List <Vector2> skeletonPolygon2, float roofPitch)
{
Vector2 edgeA = skeletonPolygon2[0];
Vector2 edgeB = skeletonPolygon2[1];
Vector2 edgeDirection2 = (edgeB - edgeA).normalized;
Vector3 roofNormal = CalculateRoofNormal(edgeDirection2, roofPitch);
var skeletonPolygon3 = skeletonPolygon2.ConvertAll(v => v.ToVector3XZ());
var tessellator = new Tessellator();
tessellator.AddContour(skeletonPolygon3);
tessellator.Tessellate(normal: Vector3.up);
var contourDraft = tessellator.ToMeshDraft();
for (var i = 0; i < contourDraft.vertexCount; i++)
{
Vector2 vertex = contourDraft.vertices[i].ToVector2XZ();
float height = CalculateVertexHeight(vertex, edgeA, edgeDirection2, roofPitch);
contourDraft.vertices[i] = new Vector3(vertex.x, height, vertex.y);
contourDraft.normals.Add(roofNormal);
}
return(contourDraft);
}
