public WorldToTilePos ( double lon, double lat, int zoom ) : DVector2 | ||
lon | double | |
lat | double | |
zoom | int | |
리턴 | DVector2 |
public static LinesGisLayer GenerateGrid(Game Game, DVector2 leftTop, DVector2 rightBottom, int dimX, int dimY, Color color, MapProjection projection, bool keepQuad = false) { var lt = projection.WorldToTilePos(leftTop.X, leftTop.Y, 0); var rb = projection.WorldToTilePos(rightBottom.X, rightBottom.Y, 0); if (keepQuad) { rb.Y = lt.Y + (rb.X - lt.X); } double stepX = Math.Abs(rb.X - lt.X) / (dimX - 1); double stepY = Math.Abs(rb.Y - lt.Y) / (dimY - 1); List<Gis.GeoPoint> points = new List<Gis.GeoPoint>(); // Too lazy for (int row = 1; row < dimY-1; row++) { for (int col = 0; col < dimX-1; col++) { var coords0 = projection.TileToWorldPos(lt.X + stepX * col, lt.Y + stepY * row, 0); var coords1 = projection.TileToWorldPos(lt.X + stepX * (col+1), lt.Y + stepY * row, 0); points.Add(new Gis.GeoPoint { Lon = DMathUtil.DegreesToRadians(coords0.X), Lat = DMathUtil.DegreesToRadians(coords0.Y), Color = color }); points.Add(new Gis.GeoPoint { Lon = DMathUtil.DegreesToRadians(coords1.X), Lat = DMathUtil.DegreesToRadians(coords1.Y), Color = color }); } } for (int col = 1; col < dimX-1; col++) { for (int row = 0; row < dimY-1; row++) { var coords0 = projection.TileToWorldPos(lt.X + stepX * col, lt.Y + stepY * row, 0); var coords1 = projection.TileToWorldPos(lt.X + stepX * col, lt.Y + stepY * (row+1), 0); points.Add(new Gis.GeoPoint { Lon = DMathUtil.DegreesToRadians(coords0.X), Lat = DMathUtil.DegreesToRadians(coords0.Y), Color = color }); points.Add(new Gis.GeoPoint { Lon = DMathUtil.DegreesToRadians(coords1.X), Lat = DMathUtil.DegreesToRadians(coords1.Y), Color = color }); } } var linesLayer = new LinesGisLayer(Game, points.Count); Array.Copy(points.ToArray(), linesLayer.PointsCpu, points.Count); linesLayer.UpdatePointsBuffer(); linesLayer.Flags = (int)(LineFlags.THIN_LINE); return linesLayer; }
public static HeatMapLayer GenerateHeatMapWithRegularGrid(Game engine, double left, double right, double top, double bottom, int density, int dimX, int dimY, MapProjection projection) { int[] indexes; Gis.GeoPoint[] vertices; var leftTop = projection.WorldToTilePos(left, top, 0); var rightBottom = projection.WorldToTilePos(right, bottom, 0); double newleft = leftTop.X; double newright = rightBottom.X; double newtop = leftTop.Y; double newbottom = newtop + (newright - newleft); var newRightBottom = projection.TileToWorldPos(newright, newbottom, 0); bottom = newRightBottom.Y; CalculateVertices(out vertices, out indexes, density, left, right, top, bottom, projection); return new HeatMapLayer(engine, vertices, indexes, dimX, dimY, false) { Left = newleft, Right = newright, Top = newtop, Bottom = newbottom, GridDensity = density, Projection = projection }; }