private Coordinate PointToCoord(int x, int y)
{
Projection p = new Projection(bounds.Width, this.Width, new Coordinate(bounds.XMin, bounds.YMax));
return p.PointToCoord(new Point(x, y));
}
private int LonToX(double lon)
{
Projection p = new Projection(bounds.Width, this.Width, new Coordinate(bounds.XMin, bounds.YMax));
Point point = p.CoordToPoint(new Coordinate(lon, 0));
return point.X;
//return (int)(this.Width * (lon - bounds.XMin) / bounds.Width);
}
private double LonFromX(int x)
{
Projection p = new Projection(bounds.Width, this.Width, new Coordinate(bounds.XMin, bounds.YMax));
Coordinate c = p.PointToCoord(new Point(x, 0));
return c.Longitude;
//return bounds.XMin + bounds.Width * ((double)x / this.Width);
}
private double LatFromY(int y)
{
//Projection p = new Projection(bounds.Height, this.Height);
Projection p = new Projection(bounds.Width, this.Width, new Coordinate(bounds.XMin, bounds.YMax));
Coordinate c = p.PointToCoord(new Point(0, y));
return c.Latitude;
//return bounds.YMin + bounds.Height * ((double)y / this.Height);
}
private Point CoordToPoint(double lon, double lat)
{
Projection p = new Projection(bounds.Width, this.Width, new Coordinate(bounds.XMin, bounds.YMax));
return p.CoordToPoint(new Coordinate(lon, lat));
}
/// <summary>
/// Returns a Point in pixel-coordinates from a Node with
/// geological coordinates. The Point is in coordinates for the
/// entire map so it should be converted to coordinates for the
/// specific tile that is drawn.
/// </summary>
private Point nodeToTilePoint(BBox box, Bitmap tile, Node node)
{
Coordinate c = new Coordinate(node.Longitude, node.Latitude);
Projection p = new Projection(box.Width, tile.Width, new Coordinate(box.XMin, box.YMax));
return p.CoordToPoint(c);
}