private static Triangle findnext1(Point p, Triangle v) { if (p.pointLineTest(v.getA(), v.getB()) == Point.RIGHT && !v.getAbTriangle().isHalfplane()) return v.getAbTriangle(); if (p.pointLineTest(v.getB(), v.getC()) == Point.RIGHT && !v.getBcTriangle().isHalfplane()) return v.getBcTriangle(); if (p.pointLineTest(v.getC(), v.getA()) == Point.RIGHT && !v.getCaTriangle().isHalfplane()) return v.getCaTriangle(); if (p.pointLineTest(v.getA(), v.getB()) == Point.RIGHT) return v.getAbTriangle(); if (p.pointLineTest(v.getB(), v.getC()) == Point.RIGHT) return v.getBcTriangle(); if (p.pointLineTest(v.getC(), v.getA()) == Point.RIGHT) return v.getCaTriangle(); return null; }
private Triangle treatDegeneracyInside(Triangle t, Point p) { if (t.getAbTriangle().isHalfplane() && p.pointLineTest(t.getB(), t.getA()) == Point.ONSEGMENT) return extendOutside(t.getAbTriangle(), p); if (t.getBcTriangle().isHalfplane() && p.pointLineTest(t.getC(), t.getB()) == Point.ONSEGMENT) return extendOutside(t.getBcTriangle(), p); if (t.getCaTriangle().isHalfplane() && p.pointLineTest(t.getA(), t.getC()) == Point.ONSEGMENT) return extendOutside(t.getCaTriangle(), p); return null; }
Point point2 = tmpTriangle.getB(); Point point3 = tmpTriangle.getC();
private Triangle extendclock(Triangle t, Point p) { t.setHalfplane(false); t.setC(p); t.circumcircle(); Triangle tbc = t.getBcTriangle(); if (p.pointLineTest(tbc.getA(), tbc.getB()) >= Point.RIGHT) { Triangle nT = new Triangle(p, t.getB()); nT.setAbTriangle(t); t.setBcTriangle(nT); nT.setBcTriangle(tbc); tbc.setCanext(nT); return nT; } return extendclock(tbc, p); }
public boolean fallInsideCircumcircle(Point[] arrayPoints) { boolean isInside = false; Point p1 = this.getA(); Point p2 = this.getB(); Point p3 = this.getC(); int i = 0; while (!isInside && i < arrayPoints.length) { Point p = arrayPoints[i]; if (!p.equals(p1) && !p.equals(p2) && !p.equals(p3)) { isInside = this.circumcircleContains(p); } i++; } return isInside; }
private Triangle extendOutside(Triangle t, Point p) { if (p.pointLineTest(t.getA(), t.getB()) == Point.ONSEGMENT) { Triangle dg = new Triangle(t.getA(), t.getB(), p); Triangle hp = new Triangle(p, t.getB()); t.setB(p); dg.setAbTriangle(t.getAbTriangle()); dg.getAbTriangle().switchneighbors(t, dg); dg.setBcTriangle(hp); hp.setAbTriangle(dg); dg.setCanext(t); t.setAbTriangle(dg); hp.setBcTriangle(t.getBcTriangle()); hp.getBcTriangle().setCanext(hp); hp.setCanext(t); t.setBcTriangle(hp); return dg; } Triangle ccT = extendcounterclock(t, p); Triangle cT = extendclock(t, p); ccT.setBcTriangle(cT); cT.setCanext(ccT); startTriangleHull = cT; return cT.getAbTriangle(); }
private Point findDiagonal(Triangle triangle, Point point) { Point p1 = triangle.getA(); Point p2 = triangle.getB(); Point p3 = triangle.getC(); if ((p1.pointLineTest(point, p3) == Point.LEFT) && (p2.pointLineTest(point, p3) == Point.RIGHT)) return p3; if ((p3.pointLineTest(point, p2) == Point.LEFT) && (p1.pointLineTest(point, p2) == Point.RIGHT)) return p2; if ((p2.pointLineTest(point, p1) == Point.LEFT) && (p3.pointLineTest(point, p1) == Point.RIGHT)) return p1; return null; }
v = new Triangle(u.getB(), t.getB(), t.getC()); v.setAbTriangle(u.getBcTriangle()); t.setAbTriangle(u.getAbTriangle()); } else if (t.getA() == u.getB()) { v = new Triangle(u.getC(), t.getB(), t.getC()); v.setAbTriangle(u.getCaTriangle()); t.setAbTriangle(u.getBcTriangle()); } else if (t.getA() == u.getC()) { v = new Triangle(u.getA(), t.getB(), t.getC()); v.setAbTriangle(u.getAbTriangle()); t.setAbTriangle(u.getCaTriangle());
if (!neighbor.getA().equals(halfplane.getA()) && !neighbor.getA().equals(halfplane.getB())) third = neighbor.getA(); if (!neighbor.getB().equals(halfplane.getA()) && !neighbor.getB().equals(halfplane.getB())) third = neighbor.getB(); if (!neighbor.getC().equals(halfplane.getA()) && !neighbor.getC().equals(halfplane.getB())) third = neighbor.getC(); double halfplaneDelta = (halfplane.getA().getY() - halfplane.getB().getY()) / (halfplane.getA().getX() - halfplane.getB().getX());
Triangle triangle = find(pointToDelete); Point p1 = triangle.getA(); Point p2 = triangle.getB(); double d1 = p1.distance(pointToDelete); double d2 = p2.distance(pointToDelete);
private Triangle extendInside(Triangle t, Point p) { Triangle h1, h2; h1 = treatDegeneracyInside(t, p); if (h1 != null) return h1; h1 = new Triangle(t.getC(), t.getA(), p); h2 = new Triangle(t.getB(), t.getC(), p); t.setC(p); t.circumcircle(); h1.setAbTriangle(t.getCaTriangle()); h1.setBcTriangle(t); h1.setCanext(h2); h2.setAbTriangle(t.getBcTriangle()); h2.setBcTriangle(h1); h2.setCanext(t); h1.getAbTriangle().switchneighbors(t, h1); h2.getAbTriangle().switchneighbors(t, h2); t.setBcTriangle(h2); t.setCanext(h1); return t; }
public static Polygon toJzyPolygon(Triangle triangle) { Coord3d c1 = toJzyCoord(triangle.getA()); Coord3d c2 = toJzyCoord(triangle.getB()); Coord3d c3 = toJzyCoord(triangle.getC()); Polygon polygon = new Polygon(); polygon.add(new org.jzy3d.plot3d.primitives.Point(c1)); polygon.add(new org.jzy3d.plot3d.primitives.Point(c2)); polygon.add(new org.jzy3d.plot3d.primitives.Point(c3)); return polygon; } }
private void updateNeighbor(Triangle addedTriangle, Triangle deletedTriangle, Point pointToDelete) { Point delA = deletedTriangle.getA(); Point delB = deletedTriangle.getB(); Point delC = deletedTriangle.getC(); Point addA = addedTriangle.getA(); Point addB = addedTriangle.getB(); Point addC = addedTriangle.getC();
private void startTriangulation(Point p1, Point p2) { Point ps, pb; if (p1.isLess(p2)) { ps = p1; pb = p2; } else { ps = p2; pb = p1; } firstT = new Triangle(pb, ps); lastT = firstT; Triangle t = new Triangle(ps, pb); firstT.setAbTriangle(t); t.setAbTriangle(firstT); firstT.setBcTriangle(t); t.setCanext(firstT); firstT.setCanext(t); t.setBcTriangle(firstT); firstP = firstT.getB(); lastP = lastT.getA(); startTriangleHull = firstT; }
private Triangle extendcounterclock(Triangle t, Point p) { t.setHalfplane(false); t.setC(p); t.circumcircle(); Triangle tca = t.getCaTriangle(); if (p.pointLineTest(tca.getA(), tca.getB()) >= Point.RIGHT) { Triangle nT = new Triangle(t.getA(), p); nT.setAbTriangle(t); t.setCanext(nT); nT.setCanext(tca); tca.setBcTriangle(nT); return nT; } return extendcounterclock(tca, p); }