private static Model3D[] CreateIcons_Rotate(double arcRadius, double arcThickness, double arrowThickness, double sphereRadius)
{
const int NUMSIDES_TOTAL = 13;
const int NUMSIDES_USE = 9;
#region create triangles
Point[] pointsTheta = Math2D.GetCircle_Cached(NUMSIDES_TOTAL);
var circlePoints = pointsTheta.
Select(o => GetCirclePoints(o, arcRadius, arcThickness, sphereRadius)).
ToArray();
List <Triangle> triangles = new List <Triangle>();
for (int cntr = 0; cntr < NUMSIDES_USE - 1; cntr++)
{
triangles.Add(new Triangle(circlePoints[cntr].inner, circlePoints[cntr].outer, circlePoints[cntr + 1].inner));
triangles.Add(new Triangle(circlePoints[cntr].outer, circlePoints[cntr + 1].outer, circlePoints[cntr + 1].inner));
}
int i1 = NUMSIDES_USE - 1;
int i2 = NUMSIDES_USE;
var arrowBase = GetCirclePoints(pointsTheta[i1], arcRadius, arrowThickness, sphereRadius);
var arrowTip = GetCirclePoints(pointsTheta[i2], arcRadius, arcThickness * .75, sphereRadius); //NOTE: Not using mid, because that curls the arrow too steeply (looks odd). So using outer as a comprimise between pointing in and pointing straight
triangles.Add(new Triangle(arrowBase.inner, circlePoints[i1].inner, arrowTip.outer));
triangles.Add(new Triangle(circlePoints[i1].inner, circlePoints[i1].outer, arrowTip.outer));
triangles.Add(new Triangle(circlePoints[i1].outer, arrowBase.outer, arrowTip.outer));
// It would be more efficient to build the link triangles directly, but a lot more logic
ITriangleIndexed[] indexedTriangles = TriangleIndexed.ConvertToIndexed(triangles.ToArray());
#endregion
List <Model3D> retVal = new List <Model3D>();
MaterialGroup material = new MaterialGroup();
material.Children.Add(new DiffuseMaterial(new SolidColorBrush(WorldColors.ImpulseEngine_Icon_Color)));
material.Children.Add(WorldColors.ImpulseEngine_Icon_Specular);
material.Children.Add(WorldColors.ImpulseEngine_Icon_Emissive);
foreach (Transform3D transform in GetRotations_Tetrahedron(sphereRadius))
{
GeometryModel3D geometry = new GeometryModel3D();
geometry.Material = material;
geometry.BackMaterial = material;
geometry.Geometry = UtilityWPF.GetMeshFromTriangles(indexedTriangles);
geometry.Transform = transform;
retVal.Add(geometry);
}
return(retVal.ToArray());
}
private static Model3D[] CreateIcons_Translate(double lineRadius, double lineThickness, double arrowThickness, double sphereRadius)
{
#region define points
Vector[] cores1 = new[]
{
new Vector(1, 0),
new Vector(0, 1),
new Vector(-1, 0),
new Vector(0, -1),
};
var cores2 = cores1.
Select(o =>
(
o * lineThickness / 2,
o * lineRadius * 2d / 3d,
o * lineRadius
)).
ToArray();
var lines = cores2.
Select(o => new
{
from = Math3D.ProjectPointOntoSphere(o.Item1.X, o.Item1.Y, sphereRadius),
to = Math3D.ProjectPointOntoSphere(o.Item2.X, o.Item2.Y, sphereRadius),
tip = Math3D.ProjectPointOntoSphere(o.Item3.X, o.Item3.Y, sphereRadius),
bar = GetLinePoints(o.Item1, o.Item2, lineThickness, arrowThickness, sphereRadius),
}).
ToArray();
Point3D origin = Math3D.ProjectPointOntoSphere(0, 0, sphereRadius);
#endregion
#region create triangles
List <Triangle> triangles = new List <Triangle>();
foreach (var line in lines)
{
triangles.Add(new Triangle(origin, line.bar.fromRight, line.bar.fromLeft));
triangles.Add(new Triangle(line.bar.fromLeft, line.bar.fromRight, line.bar.toRight));
triangles.Add(new Triangle(line.bar.toRight, line.bar.toLeft, line.bar.fromLeft));
triangles.Add(new Triangle(line.bar.baseLeft, line.bar.toLeft, line.tip));
triangles.Add(new Triangle(line.bar.toLeft, line.bar.toRight, line.tip));
triangles.Add(new Triangle(line.bar.toRight, line.bar.baseRight, line.tip));
}
ITriangleIndexed[] indexedTriangles = TriangleIndexed.ConvertToIndexed(triangles.ToArray());
#endregion
List <Model3D> retVal = new List <Model3D>();
MaterialGroup material = new MaterialGroup();
material.Children.Add(new DiffuseMaterial(new SolidColorBrush(WorldColors.ImpulseEngine_Icon_Color)));
material.Children.Add(WorldColors.ImpulseEngine_Icon_Specular);
material.Children.Add(WorldColors.ImpulseEngine_Icon_Emissive);
foreach (Transform3D transform in GetRotations_Tetrahedron(sphereRadius))
{
GeometryModel3D geometry = new GeometryModel3D();
geometry.Material = material;
geometry.BackMaterial = material;
geometry.Geometry = UtilityWPF.GetMeshFromTriangles(indexedTriangles);
geometry.Transform = transform;
retVal.Add(geometry);
}
return(retVal.ToArray());
}
