public static Solid CreateFromIntersectingPlanes(IEnumerable<Plane> planes, IDGenerator generator)
{
var solid = new Solid(generator.GetNextObjectID());
var list = planes.ToList();
for (var i = 0; i < list.Count; i++)
{
// Split the polygon by all the other planes
var poly = new Polygon(list[i]);
for (var j = 0; j < list.Count; j++)
{
if (i != j) poly.Split(list[j]);
}
// The final polygon is the face
var face = new Face(generator.GetNextFaceID()) { Plane = poly.Plane , Parent = solid };
face.Vertices.AddRange(poly.Vertices.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToWorld();
solid.Faces.Add(face);
}
// Ensure all the faces point outwards
var origin = solid.GetOrigin();
foreach (var face in solid.Faces)
{
if (face.Plane.OnPlane(origin) >= 0) face.Flip();
}
solid.UpdateBoundingBox();
return solid;
}
public void FaceLineIntersectionTest()
{
var plane = new Plane(new Coordinate(0, 0, 1), 100);
var face = new Face(1) {Plane = plane};
var coords = new[]
{
new Coordinate(-100, -100, 100),
new Coordinate(100, -100, 100),
new Coordinate(100, 100, 100),
new Coordinate(-100, 100, 100)
};
face.Vertices.AddRange(coords.Select(x => new Vertex(x, face)));
face.CalculateTextureCoordinates(true);
var passLine = new Line(new Coordinate(0, 0, 0), new Coordinate(0, 0, 200));
var reversePassLine = passLine.Reverse();
var failSegment = new Line(new Coordinate(0, 0, 0), new Coordinate(0, 0, 50));
var failLine = new Line(new Coordinate(0, 0, 0), new Coordinate(1, 0, 0));
var outsideFaceLine = new Line(new Coordinate(200, 0, 0), new Coordinate(200, 0, 200));
var pass1 = face.GetIntersectionPoint(passLine);
var fail1 = face.GetIntersectionPoint(reversePassLine);
var fail2 = face.GetIntersectionPoint(failSegment);
var fail3 = face.GetIntersectionPoint(failLine);
var fail4 = face.GetIntersectionPoint(outsideFaceLine);
Assert.IsNotNull(pass1);
Assert.IsNull(fail1);
Assert.IsNull(fail2);
Assert.IsNull(fail3);
Assert.IsNull(fail4);
}
public IEnumerable<MapObject> Create(IDGenerator generator, Box box, ITexture texture, int roundDecimals)
{
var solid = new Solid(generator.GetNextObjectID()) { Colour = Colour.GetRandomBrushColour() };
// The higher Z plane will be triangle, with the lower X value getting the two corners
var c1 = new Coordinate(box.Start.X, box.Start.Y, box.End.Z).Round(roundDecimals);
var c2 = new Coordinate(box.End.X, box.Start.Y, box.End.Z).Round(roundDecimals);
var c3 = new Coordinate(box.Center.X, box.End.Y, box.End.Z).Round(roundDecimals);
var c4 = new Coordinate(box.Center.X, box.Center.Y, box.Start.Z).Round(roundDecimals);
var faces = new[]
{
new[] { c3, c2, c1 },
new[] { c3, c1, c4 },
new[] { c2, c3, c4 },
new[] { c1, c2, c4 }
};
foreach (var arr in faces)
{
var face = new Face(generator.GetNextFaceID())
{
Parent = solid,
Plane = new Plane(arr[0], arr[1], arr[2]),
Colour = solid.Colour,
Texture = { Texture = texture }
};
face.Vertices.AddRange(arr.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToFace();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
yield return solid;
}
public IEnumerable<MapObject> Create(IDGenerator generator, Box box, ITexture texture)
{
var solid = new Solid(generator.GetNextObjectID()) { Colour = Colour.GetRandomBrushColour() };
// The lower Z plane will be base, the x planes will be triangles
var c1 = new Coordinate(box.Start.X, box.Start.Y, box.Start.Z);
var c2 = new Coordinate(box.End.X, box.Start.Y, box.Start.Z);
var c3 = new Coordinate(box.End.X, box.End.Y, box.Start.Z);
var c4 = new Coordinate(box.Start.X, box.End.Y, box.Start.Z);
var c5 = new Coordinate(box.Center.X, box.Start.Y, box.End.Z);
var c6 = new Coordinate(box.Center.X, box.End.Y, box.End.Z);
var faces = new[]
{
new[] { c1, c2, c3, c4 },
new[] { c2, c1, c5 },
new[] { c5, c6, c3, c2 },
new[] { c4, c3, c6 },
new[] { c6, c5, c1, c4 }
};
foreach (var arr in faces)
{
var face = new Face(generator.GetNextFaceID())
{
Parent = solid,
Plane = new Plane(arr[0], arr[1], arr[2]),
Colour = solid.Colour,
Texture = { Texture = texture }
};
face.Vertices.AddRange(arr.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToFace();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
yield return solid;
}
public IEnumerable<MapObject> Create(IDGenerator generator, Box box, ITexture texture)
{
var numsides = (int) _numSides.GetValue();
if (numsides < 3) yield break;
// This is all very similar to the cylinder brush.
var width = box.Width;
var length = box.Length;
var major = width / 2;
var minor = length / 2;
var angle = 2 * DMath.PI / numsides;
var points = new Coordinate[numsides];
for (var i = 0; i < numsides; i++)
{
var a = i * angle;
var xval = box.Center.X + major * DMath.Cos(a);
var yval = box.Center.Y + minor * DMath.Sin(a);
var zval = box.Start.Z;
points[i] = new Coordinate(xval, yval, zval).Round(0);
}
var faces = new List<Coordinate[]>();
var point = new Coordinate(box.Center.X, box.Center.Y, box.End.Z);
for (var i = 0; i < numsides; i++)
{
var next = (i + 1) % numsides;
faces.Add(new[] {points[i], point, points[next]});
}
faces.Add(points.ToArray());
var solid = new Solid(generator.GetNextObjectID()) { Colour = Colour.GetRandomBrushColour() };
foreach (var arr in faces)
{
var face = new Face(generator.GetNextFaceID())
{
Parent = solid,
Plane = new Plane(arr[0], arr[1], arr[2]),
Colour = solid.Colour,
Texture = { Texture = texture }
};
face.Vertices.AddRange(arr.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToFace();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
yield return solid;
}
public IEnumerable<MapObject> Create(IDGenerator generator, Box box, ITexture texture, int roundDecimals)
{
var solid = new Solid(generator.GetNextObjectID()) { Colour = Colour.GetRandomBrushColour() };
foreach (var arr in box.GetBoxFaces())
{
var face = new Face(generator.GetNextFaceID())
{
Parent = solid,
Plane = new Plane(arr[0], arr[1], arr[2]),
Colour = solid.Colour,
Texture = { Texture = texture }
};
face.Vertices.AddRange(arr.Select(x => new Vertex(x.Round(roundDecimals), face)));
face.UpdateBoundingBox();
face.AlignTextureToFace();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
yield return solid;
}
public void BenchmarkSolidConstruction()
{
var idg = new IDGenerator();
var box = new Box(Coordinate.One * -100, Coordinate.One * 100);
var planes = new CylinderBrush().Create(idg, box, null, 2).OfType<Solid>().SelectMany(x => x.Faces).Select(x => x.Plane).ToList();
var stopwatch = new Stopwatch();
stopwatch.Start();
for (var b = 0; b < 1000; b++)
{
Solid.CreateFromIntersectingPlanes(planes, idg);
}
stopwatch.Stop();
Debug.WriteLine(stopwatch.Elapsed);
stopwatch.Restart();
for (var b = 0; b < 1000; b++)
{
var polys = new List<Polygon>();
for (var i = 0; i < planes.Count; i++)
{
var poly = new Polygon(planes[i]);
for (var j = 0; j < planes.Count; j++)
{
if (i != j) poly.Split(planes[j]);
}
polys.Add(poly);
}
var solid = new Solid(idg.GetNextObjectID());
foreach (var polygon in polys)
{
var face = new Face(idg.GetNextFaceID()) {Plane = polygon.Plane};
face.Vertices.AddRange(polygon.Vertices.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToWorld();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
}
stopwatch.Stop();
Debug.WriteLine(stopwatch.Elapsed);
}
private Face CreateFace(DataStructures.MapObjects.Map map, List<Coordinate> points, ObjFace objFace)
{
var verts = objFace.Vertices.Select(x => points[x]).ToList();
var f = new Face(map.IDGenerator.GetNextFaceID());
f.Plane = new Plane(verts[2], verts[1], verts[0]);
f.Vertices.AddRange(verts.Select(x => new Vertex(x, f)).Reverse());
f.UpdateBoundingBox();
return f;
}
private void UpdateCurrentFace(Viewport3D viewport, ViewportEvent e)
{
var ray = viewport.CastRayFromScreen(e.X, e.Y);
// The face doesn't change when drawing, just update the intersection
if (_state == SketchState.DrawingBase || _state == SketchState.DrawingVolume)
{
_intersection = (_state == SketchState.DrawingBase ? _currentFace.Plane : _volumePlane).GetIntersectionPoint(ray, true, true);
return;
}
var isect = Document.Map.WorldSpawn.GetAllNodesIntersectingWith(ray)
.OfType<Solid>()
.SelectMany(x => x.Faces)
.Select(x => new { Item = x, Intersection = x.GetIntersectionPoint(ray) })
.Where(x => x.Intersection != null)
.OrderBy(x => (x.Intersection - ray.Start).VectorMagnitude())
.FirstOrDefault();
if (isect != null)
{
if (_currentFace != isect.Item)
{
_cloneFace = isect.Item.Clone();
_cloneFace.Transform(new UnitTranslate(isect.Item.Plane.Normal * 0.1m), TransformFlags.None);
}
_currentFace = isect.Item;
_intersection = isect.Intersection;
_state = SketchState.Ready;
}
else
{
_cloneFace = null;
_currentFace = null;
_intersection = null;
_state = SketchState.None;
}
}
public override void Render(ViewportBase viewport)
{
// Render
if (_drawing != null)
{
var faces = _drawing.GetBoxFaces().Select(x =>
{
var f = new Face(0) { Plane = new Plane(x[0], x[1], x[2])};
f.Vertices.AddRange(x.Select(v => new Vertex(v + f.Plane.Normal * 0.1m, f)));
return f;
});
MapObjectRenderer.DrawFilled(faces, Color.FromArgb(64, Color.DodgerBlue), false, false);
}
else if (_cloneFace != null)
{
MapObjectRenderer.DrawFilled(new[] { _cloneFace }, Color.FromArgb(64, Color.Orange), false, false);
}
}
public virtual void Unclone(Face f)
{
Paste(f);
ID = f.ID;
}
public virtual Face Copy(IDGenerator generator)
{
var f = new Face(generator.GetNextFaceID())
{
Plane = Plane.Clone(),
Colour = Colour,
IsSelected = IsSelected,
IsHidden = IsHidden,
Opacity = Opacity,
Texture = Texture.Clone(),
Parent = Parent,
BoundingBox = BoundingBox.Clone()
};
foreach (var v in Vertices.Select(x => x.Clone()))
{
v.Parent = f;
f.Vertices.Add(v);
}
return f;
}
public IEnumerable<Face> GetBoxFaces()
{
var faces = new List<Face>();
if (Children.Any()) return faces;
var box = BoundingBox.GetBoxFaces();
var dummySolid = new Solid(-1)
{
IsCodeHidden = IsCodeHidden,
IsRenderHidden2D = IsRenderHidden2D,
IsSelected = IsSelected,
IsRenderHidden3D = IsRenderHidden3D,
IsVisgroupHidden = IsVisgroupHidden
};
foreach (var ca in box)
{
var face = new Face(0)
{
Plane = new Plane(ca[0], ca[1], ca[2]),
Colour = Colour,
IsSelected = IsSelected,
Parent = dummySolid
};
face.Vertices.AddRange(ca.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
faces.Add(face);
}
return faces;
}
private IEnumerable<Face> GetSides()
{
if (_state == SketchState.None || _state == SketchState.Ready || _base == null) yield break;
var b = new Face(0) {Plane = _base.Plane};
b.Vertices.AddRange(_base.Vertices.Select(x => new Vertex(x, b)));
b.UpdateBoundingBox();
yield return b;
if (_state != SketchState.DrawingVolume) yield break;
var t = new Face(0) { Plane = new Plane(_base.Plane.Normal, _base.Plane.PointOnPlane + _base.Plane.Normal * _depth) };
t.Vertices.AddRange(_base.Vertices.Select(x => new Vertex(x + _base.Plane.Normal * _depth, t)));
t.UpdateBoundingBox();
yield return t;
}
public void Deselect(Face face)
{
SelectedFaces.RemoveAll(x => x == face);
face.IsSelected = false;
}
public void Select(Face face)
{
face.IsSelected = true;
SelectedFaces.Add(face);
_changed = true;
}
private IEnumerable<Solid> CreateSolids(DataStructures.MapObjects.Map map, List<Coordinate> points, IEnumerable<ObjFace> objFaces)
{
var faces = objFaces.Select(x => CreateFace(map, points, x)).ToList();
// See if the solid is valid
var solid = new Solid(map.IDGenerator.GetNextObjectID());
solid.Colour = Colour.GetRandomBrushColour();
solid.Faces.AddRange(faces);
faces.ForEach(x => x.Parent = solid);
if (solid.IsValid())
{
// Do an additional check to ensure that all edges are shared
var edges = solid.Faces.SelectMany(x => x.GetEdges()).ToList();
if (edges.All(x => edges.Count(y => x.EquivalentTo(y)) == 2))
{
// Valid! let's get out of here!
yield return solid;
yield break;
}
}
// Not a valid solid, decompose into tetrahedrons/etc
foreach (var face in faces)
{
var polygon = new Polygon(face.Vertices.Select(x => x.Location));
if (!polygon.IsValid() || !polygon.IsConvex())
{
// tetrahedrons
foreach (var triangle in face.GetTriangles())
{
var tf = new Face(map.IDGenerator.GetNextFaceID());
tf.Plane = new Plane(triangle[0].Location, triangle[1].Location, triangle[2].Location);
tf.Vertices.AddRange(triangle.Select(x => new Vertex(x.Location, tf)));
tf.UpdateBoundingBox();
yield return SolidifyFace(map, tf);
}
}
else
{
// cone/pyramid/whatever
yield return SolidifyFace(map, face);
}
}
}
private Solid SolidifyFace(DataStructures.MapObjects.Map map, Face face)
{
var solid = new Solid(map.IDGenerator.GetNextObjectID());
solid.Colour = Colour.GetRandomBrushColour();
solid.Faces.Add(face);
face.Parent = solid;
var center = face.Vertices.Aggregate(Coordinate.Zero, (sum, v) => sum + v.Location) / face.Vertices.Count;
var offset = center - face.Plane.Normal * 5;
for (var i = 0; i < face.Vertices.Count; i++)
{
var v1 = face.Vertices[i];
var v2 = face.Vertices[(i + 1) % face.Vertices.Count];
var f = new Face(map.IDGenerator.GetNextFaceID());
f.Parent = solid;
f.Plane = new Plane(v1.Location, offset, v2.Location);
f.Parent = solid;
f.Vertices.Add(new Vertex(offset, f));
f.Vertices.Add(new Vertex(v2.Location, f));
f.Vertices.Add(new Vertex(v1.Location, f));
f.UpdateBoundingBox();
solid.Faces.Add(f);
}
return solid;
}
private static Solid CreateFakeDecalSolid(Face face)
{
var s = new Solid(0)
{
Colour = face.Colour,
IsVisgroupHidden = face.IsHidden,
IsSelected = face.IsSelected
};
s.Faces.Add(face);
var p = face.BoundingBox.Center - face.Plane.Normal * 10; // create a new point underneath the face
var p1 = face.Vertices[0].Location;
var p2 = face.Vertices[1].Location;
var p3 = face.Vertices[2].Location;
var p4 = face.Vertices[3].Location;
var faces = new[]
{
new[] { p2, p1, p},
new[] { p3, p2, p},
new[] { p4, p3, p},
new[] { p1, p4, p}
};
foreach (var ff in faces)
{
var f = new Face(-1)
{
Colour = face.Colour,
IsSelected = face.IsSelected,
IsHidden = face.IsHidden,
Plane = new Plane(ff[0], ff[1], ff[2])
};
f.Vertices.AddRange(ff.Select(x => new Vertex(x, f)));
f.UpdateBoundingBox();
s.Faces.Add(f);
}
s.UpdateBoundingBox();
return s;
}
public void AlignTextureWithFace(Face face)
{
// Get reference values for the axes
var refU = face.Texture.UAxis;
var refV = face.Texture.VAxis;
// Reference points in the texture plane to use for shifting later on
var refX = face.Texture.UAxis * face.Texture.XShift * face.Texture.XScale;
var refY = face.Texture.VAxis * face.Texture.YShift * face.Texture.YScale;
// Two non-parallel planes intersect at an edge. We want the textures on this face
// to line up with the textures on the provided face. To do this, we rotate the texture
// normal on the provided face around the intersection edge to get the new texture axes.
// Then we rotate the texture reference point around this edge as well to get the new shift values.
// The scale values on both faces will always end up being the same value.
// Find the intersection edge vector
var intersectionEdge = face.Plane.Normal.Cross(Plane.Normal);
// Create a plane using the intersection edge as the normal
var intersectionPlane = new Plane(intersectionEdge, 0);
// If the planes are parallel, the texture doesn't need any rotation - just different shift values.
var intersect = Plane.Intersect(face.Plane, Plane, intersectionPlane);
if (intersect != null)
{
var texNormal = face.Texture.GetNormal();
// Since the intersection plane is perpendicular to both face planes, we can find the angle
// between the two planes (the original texture plane and the plane of this face) by projecting
// the normals of the planes onto the perpendicular plane and taking the cross product.
// Project the two normals onto the perpendicular plane
var ptNormal = intersectionPlane.Project(texNormal).Normalise();
var ppNormal = intersectionPlane.Project(Plane.Normal).Normalise();
// Get the angle between the projected normals
var dot = Math.Round(ptNormal.Dot(ppNormal), 4);
var angle = DMath.Acos(dot); // A.B = cos(angle)
// Rotate the texture axis by the angle around the intersection edge
var transform = new UnitRotate(angle, new Line(Coordinate.Zero, intersectionEdge));
refU = transform.Transform(refU);
refV = transform.Transform(refV);
// Rotate the texture reference points as well, but around the intersection line, not the origin
refX = transform.Transform(refX + intersect) - intersect;
refY = transform.Transform(refY + intersect) - intersect;
}
// Convert the reference points back to get the final values
Texture.Rotation = 0;
Texture.UAxis = refU;
Texture.VAxis = refV;
Texture.XShift = refU.Dot(refX) / face.Texture.XScale;
Texture.YShift = refV.Dot(refY) / face.Texture.YScale;
Texture.XScale = face.Texture.XScale;
Texture.YScale = face.Texture.YScale;
CalculateTextureCoordinates(true);
}
public void CalculateDecalGeometry()
{
_decalGeometry = new List<Face>();
if (Decal == null) return; // Texture not found
var boxRadius = Coordinate.One * 4;
// Decals apply to all faces that intersect within an 8x8x8 bounding box
// centered at the origin of the decal
var box = new Box(Origin - boxRadius, Origin + boxRadius);
var root = GetRoot(Parent);
// Get the faces that intersect with the decal's radius
var faces = root.GetAllNodesIntersectingWith(box).OfType<Solid>()
.SelectMany(x => x.Faces).Where(x => x.IntersectsWithBox(box));
var idg = new IDGenerator(); // Dummy generator
foreach (var face in faces)
{
// Project the decal onto the face
var center = face.Plane.Project(Origin);
var texture = face.Texture.Clone();
texture.Name = Decal.Name;
texture.Texture = Decal;
texture.XShift = -Decal.Width / 2m;
texture.YShift = -Decal.Height / 2m;
var decalFace = new Face(idg.GetNextFaceID())
{
Colour = Colour,
IsSelected = IsSelected,
IsHidden = IsCodeHidden,
Plane = face.Plane,
Texture = texture
};
// Re-project the vertices in case the texture axes are not on the face plane
var xShift = face.Texture.UAxis * face.Texture.XScale * Decal.Width / 2;
var yShift = face.Texture.VAxis * face.Texture.YScale * Decal.Height / 2;
var verts = new[]
{
new Vertex(face.Plane.Project(center + xShift - yShift), decalFace), // Bottom Right
new Vertex(face.Plane.Project(center + xShift + yShift), decalFace), // Top Right
new Vertex(face.Plane.Project(center - xShift + yShift), decalFace), // Top Left
new Vertex(face.Plane.Project(center - xShift - yShift), decalFace) // Bottom Left
};
// Because the texture axes don't have to align to the face, we might have a reversed face here
// If so, reverse the points to get a valid face for the plane.
// TODO: Is there a better way to do this?
var vertPlane = new Plane(verts[0].Location, verts[1].Location, verts[2].Location);
if (!face.Plane.Normal.EquivalentTo(vertPlane.Normal))
{
Array.Reverse(verts);
}
decalFace.Vertices.AddRange(verts);
decalFace.UpdateBoundingBox();
// Calculate the X and Y shift bases on the first vertex location (assuming U/V of first vertex is zero) - we dont want these to change
var vtx = decalFace.Vertices[0];
decalFace.Texture.XShift = -(vtx.Location.Dot(decalFace.Texture.UAxis)) / decalFace.Texture.XScale;
decalFace.Texture.YShift = -(vtx.Location.Dot(decalFace.Texture.VAxis)) / decalFace.Texture.YScale;
decalFace.CalculateTextureCoordinates();
// Next, the decal geometry needs to be clipped to the face so it doesn't spill into the void
// Create a fake solid out of the decal geometry and clip it against all the brush planes
var fake = CreateFakeDecalSolid(decalFace);
foreach (var f in face.Parent.Faces.Except(new[] { face }))
{
Solid back, front;
fake.Split(f.Plane, out back, out front, idg);
fake = back ?? fake;
}
// Extract out the original face
decalFace = fake.Faces.First(x => x.Plane.EquivalentTo(face.Plane, 0.05m));
// Add a tiny bit to the normal axis to ensure the decal is rendered in front of the face
var normalAdd = face.Plane.Normal * 0.2m;
decalFace.Transform(new UnitTranslate(normalAdd), TransformFlags.TextureLock);
_decalGeometry.Add(decalFace);
}
}
public virtual void Paste(Face f)
{
Plane = f.Plane.Clone();
Colour = f.Colour;
IsSelected = f.IsSelected;
IsHidden = f.IsHidden;
Opacity = f.Opacity;
Texture = f.Texture.Clone();
Parent = f.Parent;
BoundingBox = f.BoundingBox.Clone();
Vertices.Clear();
foreach (var v in f.Vertices.Select(x => x.Clone()))
{
v.Parent = this;
Vertices.Add(v);
}
}
private static Face ReadFace(BinaryReader br, IDGenerator generator)
{
var face = new Face(generator.GetNextFaceID());
var textureName = br.ReadFixedLengthString(Encoding.UTF8, 256);
br.ReadBytes(4); // Unused
face.Texture.Name = textureName;
face.Texture.UAxis = br.ReadCoordinate();
face.Texture.XShift = br.ReadSingleAsDecimal();
face.Texture.VAxis = br.ReadCoordinate();
face.Texture.YShift = br.ReadSingleAsDecimal();
face.Texture.Rotation = br.ReadSingleAsDecimal();
face.Texture.XScale = br.ReadSingleAsDecimal();
face.Texture.YScale = br.ReadSingleAsDecimal();
br.ReadBytes(16); // Unused
var numVerts = br.ReadInt32();
for (var i = 0; i < numVerts; i++)
{
face.Vertices.Add(new Vertex(br.ReadCoordinate(), face));
}
face.Plane = br.ReadPlane();
face.UpdateBoundingBox();
return face;
}
private static bool RenderTransparent(ITexture texture, Face face)
{
//if (face.Parent != null && face.Parent.IsTransparent) return true;
if (texture == null || texture.Name == null) return false;
return texture.Name.ToLower() == "aaatrigger";
}
private static void WriteFace(BinaryWriter bw, Face face)
{
bw.WriteFixedLengthString(Encoding.UTF8, 256, face.Texture.Name);
bw.Write(new byte[4]);
bw.WriteCoordinate(face.Texture.UAxis);
bw.WriteDecimalAsSingle(face.Texture.XShift);
bw.WriteCoordinate(face.Texture.VAxis);
bw.WriteDecimalAsSingle(face.Texture.YShift);
bw.WriteDecimalAsSingle(face.Texture.Rotation);
bw.WriteDecimalAsSingle(face.Texture.XScale);
bw.WriteDecimalAsSingle(face.Texture.YScale);
bw.Write(new byte[16]);
bw.Write(face.Vertices.Count);
foreach (var vertex in face.Vertices)
{
bw.WriteCoordinate(vertex.Location);
}
bw.WritePlane(face.Vertices.Select(v => v.Location).ToArray());
}
public override void ToolSelected(bool preventHistory)
{
_state = SketchState.None;
_currentFace = _cloneFace = null;
_intersection = null;
_drawing = null;
_volumePlane = null;
}
private Solid MakeSolid(IDGenerator generator, IEnumerable<Coordinate[]> faces, ITexture texture, Color col)
{
var solid = new Solid(generator.GetNextObjectID()) { Colour = col };
foreach (var arr in faces)
{
var face = new Face(generator.GetNextFaceID())
{
Parent = solid,
Plane = new Plane(arr[0], arr[1], arr[2]),
Colour = solid.Colour,
Texture = { Texture = texture }
};
face.Vertices.AddRange(arr.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToWorld();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
return solid;
}
public Vertex(Coordinate location, Face parent)
{
Location = location;
Parent = parent;
TextureV = TextureU = 0;
}
public Vertex(Coordinate location, Face parent)
{
Location = location;
Parent = parent;
TextureV = TextureU = 0;
}
public IEnumerable<MapObject> Create(IDGenerator generator, Box box, ITexture texture, int roundDecimals)
{
var numsides = (int) _numSides.GetValue();
if (numsides < 3) yield break;
// Cylinders can be elliptical so use both major and minor rather than just the radius
// NOTE: when a low number (< 10ish) of faces are selected this will cause the cylinder to not touch all the edges of the box.
var width = box.Width;
var length = box.Length;
var height = box.Height;
var major = width / 2;
var minor = length / 2;
var angle = 2 * DMath.PI / numsides;
// Calculate the X and Y points for the ellipse
var points = new Coordinate[numsides];
for (var i = 0; i < numsides; i++)
{
var a = i * angle;
var xval = box.Center.X + major * DMath.Cos(a);
var yval = box.Center.Y + minor * DMath.Sin(a);
var zval = box.Start.Z;
points[i] = new Coordinate(xval, yval, zval).Round(roundDecimals);
}
var faces = new List<Coordinate[]>();
// Add the vertical faces
var z = new Coordinate(0, 0, height).Round(roundDecimals);
for (var i = 0; i < numsides; i++)
{
var next = (i + 1) % numsides;
faces.Add(new[] {points[i], points[i] + z, points[next] + z, points[next]});
}
// Add the elliptical top and bottom faces
faces.Add(points.ToArray());
faces.Add(points.Select(x => x + z).Reverse().ToArray());
// Nothing new here, move along
var solid = new Solid(generator.GetNextObjectID()) { Colour = Colour.GetRandomBrushColour() };
foreach (var arr in faces)
{
var face = new Face(generator.GetNextFaceID())
{
Parent = solid,
Plane = new Plane(arr[0], arr[1], arr[2]),
Colour = solid.Colour,
Texture = { Texture = texture }
};
face.Vertices.AddRange(arr.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToFace();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
yield return solid;
}
public IEnumerable<MapObject> Create(IDGenerator generator, Box box, ITexture texture, int roundDecimals)
{
var width = box.Width;
var length = Math.Max(1, Math.Abs((int) box.Length));
var height = box.Height;
var flatten = (float) _flattenFactor.Value;
var text = _text.GetValue();
var family = _fontChooser.GetFontFamily();
var style = Enum.GetValues(typeof (FontStyle)).OfType<FontStyle>().FirstOrDefault(fs => family.IsStyleAvailable(fs));
if (!family.IsStyleAvailable(style)) family = FontFamily.GenericSansSerif;
var set = new PolygonSet();
var sizes = new List<RectangleF>();
using (var bmp = new Bitmap(1,1))
{
using (var g = System.Drawing.Graphics.FromImage(bmp))
{
using (var font = new Font(family, length, style, GraphicsUnit.Pixel))
{
for (var i = 0; i < text.Length; i += 32)
{
using (var sf = new StringFormat(StringFormat.GenericTypographic))
{
var rem = Math.Min(text.Length, i + 32) - i;
var range = Enumerable.Range(0, rem).Select(x => new CharacterRange(x, 1)).ToArray();
sf.SetMeasurableCharacterRanges(range);
var reg = g.MeasureCharacterRanges(text.Substring(i, rem), font, new RectangleF(0, 0, float.MaxValue, float.MaxValue), sf);
sizes.AddRange(reg.Select(x => x.GetBounds(g)));
}
}
}
}
}
var xOffset = box.Start.DX;
var yOffset = box.End.DY;
for (var ci = 0; ci < text.Length; ci++)
{
var c = text[ci];
var size = sizes[ci];
var gp = new GraphicsPath();
gp.AddString(c.ToString(CultureInfo.InvariantCulture), family, (int)style, length, new PointF(0, 0), StringFormat.GenericTypographic);
gp.Flatten(new System.Drawing.Drawing2D.Matrix(), flatten);
var polygons = new List<Polygon>();
var poly = new List<PolygonPoint>();
for (var i = 0; i < gp.PointCount; i++)
{
var type = gp.PathTypes[i];
var point = gp.PathPoints[i];
poly.Add(new PolygonPoint(point.X + xOffset, -point.Y + yOffset));
if ((type & 0x80) == 0x80)
{
polygons.Add(new Polygon(poly));
poly.Clear();
}
}
var tri = new List<Polygon>();
Polygon polygon = null;
foreach (var p in polygons)
{
if (polygon == null)
{
polygon = p;
tri.Add(p);
}
else if (p.CalculateWindingOrder() != polygon.CalculateWindingOrder())
{
polygon.AddHole(p);
}
else
{
polygon = null;
tri.Add(p);
}
}
foreach (var pp in tri)
{
try
{
P2T.Triangulate(pp);
set.Add(pp);
}
catch
{
// Ignore
}
}
xOffset += size.Width;
}
var zOffset = box.Start.Z;
foreach (var polygon in set.Polygons)
{
foreach (var t in polygon.Triangles)
{
var points = t.Points.Select(x => new Coordinate((decimal) x.X, (decimal) x.Y, zOffset).Round(roundDecimals)).ToList();
var faces = new List<Coordinate[]>();
// Add the vertical faces
var z = new Coordinate(0, 0, height).Round(roundDecimals);
for (var j = 0; j < points.Count; j++)
{
var next = (j + 1) % points.Count;
faces.Add(new[] {points[j], points[j] + z, points[next] + z, points[next]});
}
// Add the top and bottom faces
faces.Add(points.ToArray());
faces.Add(points.Select(x => x + z).Reverse().ToArray());
// Nothing new here, move along
var solid = new Solid(generator.GetNextObjectID()) {Colour = Colour.GetRandomBrushColour()};
foreach (var arr in faces)
{
var face = new Face(generator.GetNextFaceID())
{
Parent = solid,
Plane = new Plane(arr[0], arr[1], arr[2]),
Colour = solid.Colour,
Texture = {Texture = texture}
};
face.Vertices.AddRange(arr.Select(x => new Vertex(x, face)));
face.UpdateBoundingBox();
face.AlignTextureToFace();
solid.Faces.Add(face);
}
solid.UpdateBoundingBox();
yield return solid;
}
}
}
