private static ProfileDetails CalcPrismProfile(this ObjectPart.PrimitiveShape.Decoded shape)
{
/* Prism has cut start at 0,0.5 */
var profile = new ProfileDetails();
double startangle = 2 * Math.PI * shape.ProfileBegin;
double endangle = 2 * Math.PI * shape.ProfileEnd;
double stepangle = (endangle - startangle) / 60;
var angles = shape.CalcBaseAngles(startangle, endangle, stepangle);
if (shape.IsHollow)
{
/* we calculate two points */
double profileHollow = shape.ProfileHollow * 0.5;
Vector3 startPoint = Vector3.UnitX * 0.5;
foreach (var angle in angles)
{
Vector3 outerDirectionalVec = CalcTrianglePoint(angle);
Vector3 innerDirectionalVec;
switch (shape.HoleShape)
{
case PrimitiveProfileHollowShape.Triangle:
case PrimitiveProfileHollowShape.Same:
innerDirectionalVec = outerDirectionalVec * profileHollow;
break;
case PrimitiveProfileHollowShape.Circle:
/* circle is simple as we are calculating with such objects */
innerDirectionalVec = startPoint.Rotate2D_XY(angle) * profileHollow;
break;
case PrimitiveProfileHollowShape.Square:
innerDirectionalVec = CalcTopEdgedSquare(angle) * profileHollow;
break;
default:
throw new NotImplementedException();
}
/* inner path is reversed */
profile.Vertices.Add(outerDirectionalVec);
profile.Vertices.Insert(0, innerDirectionalVec);
}
/* no center point here, even though we can have path cut */
profile.IsOpenHollow = shape.IsOpen;
}
else
{
/* no hollow, so it becomes simple */
foreach (var angle in angles)
{
Vector3 directionalVec = CalcTrianglePoint(angle);
profile.Vertices.Add(directionalVec);
}
if (shape.IsOpen)
{
profile.Vertices.Add(new Vector3(0, 0, 0));
}
else
{
profile.Vertices.RemoveAt(profile.Vertices.Count - 1);
}
}
return(profile);
}
private static ProfileDetails CalcBoxProfile(this ObjectPart.PrimitiveShape.Decoded shape)
{
/* Box has cut start at 0.5,-0.5 */
var profile = new ProfileDetails();
double startangle = 2 * Math.PI * shape.ProfileBegin;
double endangle = 2 * Math.PI * shape.ProfileEnd;
double stepangle = (endangle - startangle) / 60;
List <double> angles = shape.CalcBaseAngles(startangle, endangle, stepangle);
if (shape.IsHollow)
{
/* we calculate two points */
Vector3 startPoint = START_VECTOR_BOX * 0.5;
foreach (var angle in angles)
{
Vector3 outerDirectionalVec = startPoint.Rotate2D_XY(angle);
Vector3 innerDirectionalVec = outerDirectionalVec;
/* outer normalize on single component to 0.5, simplifies algorithm */
outerDirectionalVec = outerDirectionalVec.CalcPointToSquareBoundary(1);
switch (shape.HoleShape)
{
case PrimitiveProfileHollowShape.Triangle:
innerDirectionalVec = CalcTrianglePoint(angle).Rotate2D_XY(-2.3561944901923448) * shape.ProfileHollow * 0.5;
break;
case PrimitiveProfileHollowShape.Circle:
/* circle is simple as we are calculating with such objects */
innerDirectionalVec *= shape.ProfileHollow;
break;
case PrimitiveProfileHollowShape.Same:
case PrimitiveProfileHollowShape.Square:
/* inner normalize on single component to 0.5 * hollow */
innerDirectionalVec = innerDirectionalVec.CalcPointToSquareBoundary(shape.ProfileHollow);
break;
default:
throw new NotImplementedException();
}
/* inner path is reversed */
profile.Vertices.Add(outerDirectionalVec);
profile.Vertices.Insert(0, innerDirectionalVec);
}
/* no center point here, even though we can have path cut */
profile.IsOpenHollow = shape.IsOpen;
}
else
{
/* no hollow, so it becomes simple */
Vector3 startPoint = START_VECTOR_BOX * 0.5;
foreach (var angle in angles)
{
Vector3 directionalVec = startPoint.Rotate2D_XY(angle);
/* normalize on single component to 0.5, simplifies algorithm */
directionalVec = directionalVec.CalcPointToSquareBoundary(1);
profile.Vertices.Add(directionalVec);
}
if (shape.IsOpen)
{
profile.Vertices.Add(new Vector3(0, 0, 0));
}
else
{
profile.Vertices.RemoveAt(profile.Vertices.Count - 1);
}
}
return(profile);
}
