//Is a point intersecting with a circle?
private void PointCircle()
{
MyVector2 testPoint = pointTrans.position.ToMyVector2();
MyVector2 circlePointA = t1_p1_trans.position.ToMyVector2();
MyVector2 circlePointB = t1_p2_trans.position.ToMyVector2();
MyVector2 circlePointC = t1_p3_trans.position.ToMyVector2();
//Is a point in a circle determines by three other points
IntersectionCases intersectionCases = _Intersections.PointCircle(circlePointA, circlePointB, circlePointC, testPoint);
//print(isPointInCircle);
//Display the circle
//if (intersectionCases == IntersectionCases.NoIntersection)
//{
// Gizmos.color = Color.white;
//}
//if (intersectionCases == IntersectionCases.IsInside)
//{
// Gizmos.color = Color.red;
//}
//if (intersectionCases == IntersectionCases.IsOnEdge)
//{
// Gizmos.color = Color.blue;
//}
MyVector2 centerOfCicle = _Geometry.CalculateCircleCenter(circlePointA, circlePointB, circlePointC);
float radius = MyVector2.Distance(centerOfCicle, circlePointA);
//Gizmos.DrawWireSphere(centerOfCicle.ToVector3(), radius);
////Display the points
//float pointRadius = 0.2f;
//Gizmos.DrawWireSphere(pointTrans.position, pointRadius);
//Gizmos.DrawWireSphere(t1_p1_trans.position, pointRadius);
//Gizmos.DrawWireSphere(t1_p2_trans.position, pointRadius);
//Gizmos.DrawWireSphere(t1_p3_trans.position, pointRadius);
//With mesh
//Big circle
TestAlgorithmsHelpMethods.DisplayCircleMesh(centerOfCicle, radius, 60, Color.white);
//Small circle
Color circleColor = (intersectionCases == IntersectionCases.IsInside) ? Color.red : Color.white;
TestAlgorithmsHelpMethods.DisplayCircleMesh(testPoint, 1f, 20, circleColor);
}
//Generate circle meshes for delaunay based in 3 points in a triangle, where d is the opposite vertex
public void GenerateDelaunayCircleMeshes(MyVector2 a, MyVector2 b, MyVector2 c, MyVector2 d)
{
//Remove all old meshes
ClearBlackMeshes();
//Unnormalize the points
a = HelpMethods.UnNormalize(a, normalizingBox, dMax);
b = HelpMethods.UnNormalize(b, normalizingBox, dMax);
c = HelpMethods.UnNormalize(c, normalizingBox, dMax);
d = HelpMethods.UnNormalize(d, normalizingBox, dMax);
//Generate the triangles
//Big circle
MyVector2 center = Geometry.CalculateCircleCenter(a, b, c);
float radius = MyVector2.Distance(center, a);
HashSet <Triangle2> allTriangles = GenerateMesh.CircleHollow(center, radius, 100, 0.1f);
//Circles showing the 4 points
float circleMeshRadius = 0.3f;
HashSet <Triangle2> circle_a = GenerateMesh.Circle(a, circleMeshRadius, 10);
HashSet <Triangle2> circle_b = GenerateMesh.Circle(b, circleMeshRadius, 10);
HashSet <Triangle2> circle_c = GenerateMesh.Circle(c, circleMeshRadius, 10);
HashSet <Triangle2> circle_d = GenerateMesh.Circle(d, circleMeshRadius, 10);
//Similar to List's add range
allTriangles.UnionWith(circle_a);
allTriangles.UnionWith(circle_b);
allTriangles.UnionWith(circle_c);
allTriangles.UnionWith(circle_d);
//Active edge is a-c
HashSet <Triangle2> activeEdgeMesh = GenerateMesh.LineSegment(a, c, 0.2f);
allTriangles.UnionWith(activeEdgeMesh);
//Generate meshes
foreach (Triangle2 t in allTriangles)
{
Mesh triangleMesh = Triangle2ToMesh(t, 0.1f);
blackMeshes.Add(triangleMesh);
}
}
private List <MyVector2> ExtractOutline(Image <Gray, byte> imgs, List <MyVector2> topOutline)
{
double lineDistTheshold = 5;
List <MyVector2> ObjectOutline = GetBoundaryPoints(edgeImage);
List <MyVector2> Boundary2 = new List <MyVector2>();
foreach (var p_obj in ObjectOutline)
{
bool IsColosed = false;
foreach (var p_top in topOutline)
{
if (MyVector2.Distance(p_obj, p_top) < lineDistTheshold)
{
IsColosed = true;
}
}
if (!IsColosed)
{
Boundary2.Add(p_obj);
}
}
return(Boundary2);
}
//Generate circle meshes for delaunay based in 3 points in a triangle, where d is the opposite vertex
public HashSet <Triangle2> GenerateDelaunayCircleTriangles(MyVector2 a, MyVector2 b, MyVector2 c, MyVector2 d)
{
//Unnormalize the points
a = UnNormalize(a);
b = UnNormalize(b);
c = UnNormalize(c);
d = UnNormalize(d);
//Generate the triangles
//Big circle
MyVector2 center = _Geometry.CalculateCircleCenter(a, b, c);
float radius = MyVector2.Distance(center, a);
HashSet <Triangle2> allTriangles = _GenerateMesh.CircleHollow(center, radius, 100, 0.1f);
//Circles showing the 4 points
float circleMeshRadius = 0.3f;
HashSet <Triangle2> circle_a = _GenerateMesh.Circle(a, circleMeshRadius, 10);
HashSet <Triangle2> circle_b = _GenerateMesh.Circle(b, circleMeshRadius, 10);
HashSet <Triangle2> circle_c = _GenerateMesh.Circle(c, circleMeshRadius, 10);
HashSet <Triangle2> circle_d = _GenerateMesh.Circle(d, circleMeshRadius, 10);
//Similar to List's add range
allTriangles.UnionWith(circle_a);
allTriangles.UnionWith(circle_b);
allTriangles.UnionWith(circle_c);
allTriangles.UnionWith(circle_d);
return(allTriangles);
}
