private static Vector3 CalcAdvancedCenterPrim(this ObjectPart.PrimitiveShape.Decoded shape, double twistBegin, double twistEnd, double cut)
{
double twist;
double angle = 0.0.Lerp(shape.Revolutions * 2 * Math.PI, cut);
var taper = new Vector3();
double radiusOffset;
twist = twistBegin.Lerp(twistEnd, cut);
#region taper
taper.X = shape.Taper.X < 0f ?
1.0.Lerp(1 + shape.Taper.X, 1f - cut) :
1.0.Lerp(1 - shape.Taper.X, cut);
taper.Y = shape.Taper.Y < 0f ?
1.0.Lerp(1 + shape.Taper.Y, 1f - cut) :
1.0.Lerp(1 - shape.Taper.Y, cut);
#endregion
#region radius offset
radiusOffset = shape.RadiusOffset > 0f ?
1.0.Lerp(1 - shape.RadiusOffset, 1f - cut) :
1.0.Lerp(1 + shape.RadiusOffset, cut);
#endregion
/* generate extrusions */
return(shape.CalcAdvVertex(Vector3.Zero, angle, twist, cut, taper, radiusOffset));
}
private static List <Vector3> ExtrudeAdvanced(this ProfileDetails path, ObjectPart.PrimitiveShape.Decoded shape, double twistBegin, double twistEnd, double cut)
{
var extrusionPath = new List <Vector3>();
double twist;
double angle = 0.0.Lerp(shape.Revolutions * 2 * Math.PI, cut);
var taper = new Vector3();
double radiusOffset;
twist = twistBegin.Lerp(twistEnd, cut);
#region taper
taper.X = shape.Taper.X < 0f ?
1.0.Lerp(1 + shape.Taper.X, 1f - cut) :
1.0.Lerp(1 - shape.Taper.X, cut);
taper.Y = shape.Taper.Y < 0f ?
1.0.Lerp(1 + shape.Taper.Y, 1f - cut) :
1.0.Lerp(1 - shape.Taper.Y, cut);
#endregion
#region radius offset
radiusOffset = shape.RadiusOffset > 0f ?
1.0.Lerp(1 - shape.RadiusOffset, 1f - cut) :
1.0.Lerp(1 + shape.RadiusOffset, cut);
#endregion
/* generate extrusions */
foreach (var vertex in path.Vertices)
{
extrusionPath.Add(shape.CalcAdvVertex(vertex, angle, twist, cut, taper, radiusOffset));
}
return(extrusionPath);
}
