Ejemplo n.º 1
0
        public bool HitTest(Vec2 p)
        {
            if (!ClipRect.Contains(p))
            {
                return(false);
            }
            var planeIntersect = PlaneIntersection(new Vec3(p));

            if (planeIntersect == null)
            {
                return(false);
            }
            return(new Rect(Size).Contains(ToLocalCoord(planeIntersect.Value).XY));
        }
Ejemplo n.º 2
0
        /// <summary>
        /// Overrides <see cref="CADability.Curve2D.GeneralCurve2D.HitTest (ref BoundingRect, bool)"/>
        /// </summary>
        /// <param name="Rect"></param>
        /// <param name="IncludeControlPoints"></param>
        /// <returns></returns>
        public override bool HitTest(ref BoundingRect Rect, bool IncludeControlPoints)
        {
            Angle    majorang = majorAxis.Angle;
            double   radiusx  = majorAxis.Length;
            double   radiusy  = minorAxis.Length;
            ClipRect clr      = new ClipRect(ref Rect);

            if (clr.Contains(startPoint))
            {
                return(true);
            }
            if (clr.Contains(EndPoint))
            {
                return(true);
            }

            for (int q = 0; q < 4; ++q)
            {
                GeoPoint2D ps;
                GeoPoint2D pe;
                switch (q)
                {
                default:     // nur wg. Compiler
                case 0:
                    ps = right;
                    pe = top;
                    break;

                case 1:
                    ps = top;
                    pe = left;
                    break;

                case 2:
                    ps = left;
                    pe = bottom;
                    break;

                case 3:
                    ps = bottom;
                    pe = right;
                    break;
                }
                if (Sweep > 0.0)
                {
                    if (crossingZero)
                    {
                        if (q < startQuad && q > endQuad)
                        {
                            continue;
                        }
                    }
                    else
                    {
                        if (q < startQuad || q > endQuad)
                        {
                            continue;
                        }
                    }
                    if (crossingZero && startQuad == q && endQuad == q)
                    {   // zwei Tests nötig
                        GeoPoint2D p = endPoint;
                        if (clr.EllipseArcHitTest(center, radiusx, radiusy, majorang, q, ps, p))
                        {
                            return(true);
                        }
                        p = startPoint;
                        if (clr.EllipseArcHitTest(center, radiusx, radiusy, majorang, q, p, pe))
                        {
                            return(true);
                        }
                    }
                    else
                    {
                        if (startQuad == q)
                        {
                            ps = startPoint;
                        }
                        if (endQuad == q)
                        {
                            pe = endPoint;
                        }
                        if (clr.EllipseArcHitTest(center, radiusx, radiusy, majorang, q, ps, pe))
                        {
                            return(true);
                        }
                    }
                }
                else
                {
                    if (crossingZero)
                    {
                        if (q < endQuad && q > startQuad)
                        {
                            continue;
                        }
                    }
                    else
                    {
                        if (q < endQuad || q > startQuad)
                        {
                            continue;
                        }
                    }
                    if (crossingZero && startQuad == q && endQuad == q)
                    {   // zwei Tests nötig
                        GeoPoint2D p = startPoint;
                        if (clr.EllipseArcHitTest(center, radiusx, radiusy, majorang, q, ps, p))
                        {
                            return(true);
                        }
                        p = endPoint;
                        if (clr.EllipseArcHitTest(center, radiusx, radiusy, majorang, q, p, pe))
                        {
                            return(true);
                        }
                    }
                    else
                    {
                        if (startQuad == q)
                        {
                            pe = startPoint;
                        }
                        if (endQuad == q)
                        {
                            ps = endPoint;
                        }
                        if (clr.EllipseArcHitTest(center, radiusx, radiusy, majorang, q, ps, pe))
                        {
                            return(true);
                        }
                    }
                }
            }

            return(false);
        }