Exemplo n.º 1
0
        /// Update the bounding box of the path
        void UpdateBounds()
        {
            if (boundsUpToDate)
            {
                return;
            }

            // Loop through all segments and keep track of the minmax points of all their bounding boxes
            MinMax3D minMax = new MinMax3D();

            for (int i = 0; i < NumSegments; i++)
            {
                Vector3[] p = GetPointsInSegment(i);
                minMax.AddValue(p[0]);
                minMax.AddValue(p[3]);

                List <float> extremePointTimes = PathUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
                foreach (float t in extremePointTimes)
                {
                    minMax.AddValue(MathUtility.CubicBezier(p, t));
                }
            }

            boundsUpToDate = true;
            bounds         = new Bounds((minMax.Min + minMax.Max) * .5f, minMax.Max - minMax.Min);
        }
Exemplo n.º 2
0
        /// Update the bounding box of the path
        public Bounds CalculateBoundsWithTransform(Transform transform)
        {
            // Loop through all segments and keep track of the minmax points of all their bounding boxes
            MinMax3D minMax = new MinMax3D();

            for (int i = 0; i < NumSegments; i++)
            {
                Vector3[] p = GetPointsInSegment(i);
                for (int j = 0; j < p.Length; j++)
                {
                    p[j] = MathUtility.TransformPoint(p[j], transform, space);
                }

                minMax.AddValue(p[0]);
                minMax.AddValue(p[3]);

                List <float> extremePointTimes = PathUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
                foreach (float t in extremePointTimes)
                {
                    minMax.AddValue(MathUtility.CubicBezier(p, t));
                }
            }

            return(new Bounds((minMax.Min + minMax.Max) * .5f, minMax.Max - minMax.Min));
        }
Exemplo n.º 3
0
        public static Bounds CalculateSegmentBounds (Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3) {
            MinMax3D minMax = new MinMax3D ();
            minMax.AddValue (p0);
            minMax.AddValue (p3);

            List<float> extremePointTimes = ExtremePointTimes (p0,p1,p2,p3);
            foreach (float t in extremePointTimes) {
                minMax.AddValue (CubicBezierUtility.EvaluateCurve (p0, p1, p2, p3, t));
            }

            return new Bounds ((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min);
        }
        public static Bounds CalculateBounds(Vector3[] points)
        {
            MinMax3D minMax = new MinMax3D();

            minMax.AddValue(points[0]);
            minMax.AddValue(points[3]);

            List <float> extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);

            foreach (float t in extremePointTimes)
            {
                minMax.AddValue(CubicBezierUtility.EvaluateCurve(points, t));
            }

            return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
        }
Exemplo n.º 5
0
        public static Bounds CalculateBounds(Vector3[] points)
        {
            Debug.Assert(points.Length == 4, "Incorrect number of points supplied to cubic bezier function (expected 4)");
            MinMax3D minMax = new MinMax3D();

            if (points.Length >= 4)
            {
                minMax.AddValue(points[0]);
                minMax.AddValue(points[3]);

                List <float> extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
                foreach (float t in extremePointTimes)
                {
                    minMax.AddValue(CubicBezierUtility.EvaluateCurve(points, t));
                }
            }

            return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
        }
Exemplo n.º 6
0
        public static Bounds CalculateBounds(Vector3[] points)
        {
            Debug.Assert(
                points.Length == 4,
                "Incorrect number of points supplied to cubic bezier function. Expected 4, but received " + points.Length);
            var minMax = new MinMax3D();

            if (points.Length >= 4)
            {
                minMax.AddValue(points[0]);
                minMax.AddValue(points[3]);

                var extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
                foreach (var t in extremePointTimes)
                {
                    minMax.AddValue(EvaluateCurve(points, t));
                }
            }

            return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
        }