static void SetOutlineCoords(Triangle triangle, int coordIdx, ProjectedEdge e1, ProjectedEdge e2)
{
var mode = (e1.NeedsToBeClipped || (e2?.NeedsToBeClipped ?? false)) ?
RoundEdgeData.EdgeCombineMode.Intersection : RoundEdgeData.EdgeCombineMode.Union;
if (e2 == null && mode == RoundEdgeData.EdgeCombineMode.Intersection)
{
mode = RoundEdgeData.EdgeCombineMode.Union;
}
//if (e2 == null && mode == RoundEdgeData.EdgeCombineMode.Union)
// mode = RoundEdgeData.EdgeCombineMode.Intersection;
e1.AdjustValues();
if (e2 != null)
{
e2.AdjustValues();
}
for (int i = 0; i < 3; i++)
{
var uv1 = e1.UVs[i];
var uv2 = e2 != null ? e2.UVs[i] : RoundEdgeData.EmptyCoord;
triangle.Indices[i].RoundEdgeData.SetCoordsPair(coordIdx, uv2, uv1, mode);
}
}
public ProjectedEdge ProjectTriangle(Triangle triangle, Vector3 vertex)
{
var plane = new Plane(vertex, triangle.Normal);
var edgeP1 = plane.ProjectPoint2D(Direction, P1);
var edgeP2 = plane.ProjectPoint2D(Direction, P2);
var edge = new ProjectedEdge()
{
PlanarEdge = this,
TargetVertex = vertex,
P1 = plane.ProjectPoint2D(Direction, triangle.V1.Position),
P2 = plane.ProjectPoint2D(Direction, triangle.V2.Position),
P3 = plane.ProjectPoint2D(Direction, triangle.V3.Position),
MinX = Math.Min(edgeP1.X, edgeP2.X),
MaxX = Math.Max(edgeP1.X, edgeP2.X),
};
if (OrigEdge != null)//prevents errors from temp objects
{
edge.ValidateValues();
}
return(edge);
}
static ProjectedEdge CreateClippingEdge(ProjectedEdge baseEdge, Vector3 edgeEnd, Plane facePlane)
{
var triangle = baseEdge.PlanarEdge.Face;
var oppVert = baseEdge.PlanarEdge.GetOppositeVertex(edgeEnd);
var outlineDir = (edgeEnd - oppVert).Normalized();
var interEdge = new HardEdge(
edgeEnd,
edgeEnd + baseEdge.PlanarEdge.OutlineDirection,
facePlane.Normal,
outlineDir);
interEdge.CorrectOrder();
var planarEndEdge = new PlanarEdge(interEdge, triangle, facePlane);
var interProjected = planarEndEdge.ProjectTriangle(triangle, edgeEnd);
interProjected.NeedsToBeClipped = true;
baseEdge.CombineWith = interProjected;
interProjected.CombineWith = baseEdge;
return(interProjected);
}
