Exemple #1
0
        private void drawIntersection(Shape shape, ref Bitmap bitmap, Color color)
        {
            Graphics gfx = Graphics.FromImage(bitmap);

            Brush brush = new SolidBrush(color);

            if (!Single.IsInfinity(xScale) && !Single.IsInfinity(yScale))
            {
                int l = 0;
                for (int i = 0; i < shape.intersectingPolygons.GetLength(0); ++i)
                {
                    for (int j = 0; j < shape.intersectingPolygons.GetLength(1); ++j, ++l)
                    {
                        if (shape.intersectingPolygons[i, j] != null && shape.intersectingPolygons[i, j].Length != 0)
                        {
                            DynamicPolygon polygon = shape.intersectingPolygons[i, j];

                            Point[] points = new Point[polygon.Length];

                            for (int k = 0; k < polygon.Length; ++k)
                            {
                                points[k] = worldToScreenCoordinates(polygon[k], bitmap);
                            }

                            gfx.FillPolygon(brush, points);
                        }
                    }
                }
            }
        }
Exemple #2
0
        public DynamicGrid(Grid grid)
            : base(grid)
        {
            gridIntersections = new Dictionary <double2, int>();

            int nColumns = (int)Math.Ceiling((mbr.xMax - mbr.xMin - double2.Tolerance) / xRes);
            int nRows    = (int)Math.Ceiling((mbr.yMax - mbr.yMin - double2.Tolerance) / yRes) + 1;

            gridPolygons = new DynamicPolygon[nColumns, nRows];

            for (int i = 0; i < nColumns; ++i)
            {
                for (int j = 0; j < nRows; ++j)
                {
                    gridPolygons[i, j]    = new DynamicPolygon();
                    gridPolygons[i, j][0] = new double2(mbr.xMin + ((i) * xRes), mbr.yMax - ((j) * yRes));
                    gridPolygons[i, j][1] = new double2(mbr.xMin + ((i + 1) * xRes), mbr.yMax - ((j) * yRes));
                    gridPolygons[i, j][2] = new double2(mbr.xMin + ((i + 1) * xRes), mbr.yMax - ((j + 1) * yRes));
                    gridPolygons[i, j][3] = new double2(mbr.xMin + ((i) * xRes), mbr.yMax - ((j + 1) * yRes));
                }
            }

            intersectionList = new IntersectionList();
        }