Пример #1
0
        ////////////////////////////////////////////////////////////////////////////
        //--------------------------------- REVISIONS ------------------------------
        // Date       Name                 Tracking #         Description
        // ---------  -------------------  -------------      ----------------------
        // 21JUN2009  James Shen                 	          Initial Creation
        ////////////////////////////////////////////////////////////////////////////
        /**
         * draw a region.
         * @param mapPen  pen for the border of the region.
         * @param mapBrush brush to fill the region.
         * @param region the polygon object.
         */
        private void DrawRegion(MapPen mapPen, MapBrush mapBrush, GeoPolygon region)
        {
            Pen pen = new Pen(new Color(mapPen.Color,false), mapPen.Width);
            TextureBrush brush = GetImagePatternBrush(mapBrush);
            ArrayList clippedPts = _sutherlandHodgman.ClipRegion(region.GetPoints());
            GeoPoint[] screenPts = FromLatLngToMapPixel(clippedPts);

            if (screenPts.Length > 2)
            {
                {
                    int[] xpoints = new int[screenPts.Length];
                    int[] ypoints = new int[screenPts.Length];
                    for (int i = 0; i < screenPts.Length; i++)
                    {
                        xpoints[i] = (int)screenPts[i].X;
                        ypoints[i] = (int)screenPts[i].Y;

                    }
                    Polygon polygon = new Polygon
                                          {
                                              Xpoints = xpoints,
                                              Ypoints = ypoints,
                                              NumOfNpoints = xpoints.Length
                                          };

                    if (mapBrush.Pattern == 2)
                    {
                        SharedGraphics2D.SetPenAndBrush(pen, brush);
                        SharedGraphics2D.DrawPolygon(null, polygon);
                        SharedGraphics2D.FillPolygon(null, polygon);
                    }
                    else
                    {
                        SharedGraphics2D.SetDefaultPen(pen);
                        SharedGraphics2D.DrawPolygon(null, polygon);
                    }
                }
            }
        }
Пример #2
0
 public PolygonPathIterator(Polygon pg, AffineTransform at)
 {
     poly = pg;
     transform = at;
     if (pg.NumOfNpoints == 0)
     {
         // Prevent a spurious SEG_CLOSE segment
         index = 1;
     }
 }