/// <summary>
/// Converts coordinates in decimal degrees to projected meters.
/// </summary>
/// <param name="lonlat">The point in decimal degrees.</param>
/// <returns>Point in projected meters</returns>
public override SharpMap.Geometries.Point DegreesToMeters(SharpMap.Geometries.Point lonlat)
{
double dLongitude = Degrees2Radians(lonlat.X);
double dLatitude = Degrees2Radians(lonlat.Y);
double con; /* temporary angle variable */
double rh1; /* height above ellipsoid */
double sinphi; /* sin value */
double theta; /* angle */
double ts; /* small value t */
con = Math.Abs(Math.Abs(dLatitude) - HALF_PI);
if (con > EPSLN)
{
sinphi = Math.Sin(dLatitude);
ts = tsfnz(e, dLatitude, sinphi);
rh1 = this._semiMajor * f0 * Math.Pow(ts, ns);
}
else
{
con = dLatitude * ns;
if (con <= 0)
{
throw new ApplicationException();
}
rh1 = 0;
}
theta = ns * adjust_lon(dLongitude - center_lon);
return(new SharpMap.Geometries.Point(
rh1 * Math.Sin(theta) + this._falseEasting,
rh - rh1 * Math.Cos(theta) + this._falseNorthing));
}
/// <summary>
/// Converts coordinates in decimal degrees to projected meters.
/// </summary>
/// <param name="lonlat">The point in decimal degrees.</param>
/// <returns>Point in projected meters</returns>
public override SharpMap.Geometries.Point DegreesToMeters(SharpMap.Geometries.Point lonlat)
{
double lon = Degrees2Radians(lonlat.X);
double lat = Degrees2Radians(lonlat.Y);
double delta_lon = 0.0; /* Delta longitude (Given longitude - center */
double sin_phi, cos_phi; /* sin and cos value */
double al, als; /* temporary values */
double c, t, tq; /* temporary values */
double con, n, ml; /* cone constant, small m */
delta_lon = adjust_lon(lon - central_meridian);
sincos(lat, out sin_phi, out cos_phi);
al = cos_phi * delta_lon;
als = Math.Pow(al, 2);
c = esp * Math.Pow(cos_phi, 2);
tq = Math.Tan(lat);
t = Math.Pow(tq, 2);
con = 1.0 - es * Math.Pow(sin_phi, 2);
n = r_major / Math.Sqrt(con);
ml = r_major * mlfn(e0, e1, e2, e3, lat);
return(new SharpMap.Geometries.Point(
scale_factor * n * al * (1.0 + als / 6.0 * (1.0 - t + c + als / 20.0 *
(5.0 - 18.0 * t + Math.Pow(t, 2) + 72.0 * c - 58.0 * esp))) + false_easting
,
scale_factor * (ml - ml0 + n * tq * (als * (0.5 + als / 24.0 *
(5.0 - t + 9.0 * c + 4.0 * Math.Pow(c, 2) + als / 30.0 * (61.0 - 58.0 * t
+ Math.Pow(t, 2) + 600.0 * c - 330.0 * esp))))) + false_northing));
}
private Bitmap GeneratePartialBitmap(SharpMap.Geometries.Point center, XPosition xPos, YPosition yPos)
{
double x = center.X, y = center.Y;
switch (xPos)
{
case XPosition.Right:
x += m_Map.Envelope.Width;
break;
case XPosition.Left:
x -= m_Map.Envelope.Width;
break;
}
switch (yPos)
{
case YPosition.Top:
y += m_Map.Envelope.Height;
break;
case YPosition.Bottom:
y -= m_Map.Envelope.Height;
break;
}
m_Map.Center = new SharpMap.Geometries.Point(x, y);
return(m_Map.GetMap() as Bitmap);
}
/// <summary>
/// Returns the geometry corresponding to the Object ID
/// </summary>
/// <param name="oid">Object ID</param>
/// <returns>geometry</returns>
public SharpMap.Geometries.Geometry GetGeometryByID(uint oid)
{
SharpMap.Geometries.Geometry geom = null;
using (System.Data.OleDb.OleDbConnection conn = new OleDbConnection(_ConnectionString))
{
string strSQL = "Select " + this.XColumn + ", " + this.YColumn + " FROM " + this.Table + " WHERE " + this.ObjectIdColumn + "=" + oid.ToString();
using (System.Data.OleDb.OleDbCommand command = new OleDbCommand(strSQL, conn))
{
conn.Open();
using (System.Data.OleDb.OleDbDataReader dr = command.ExecuteReader())
{
if (dr.Read())
{
//If the read row is OK, create a point geometry from the XColumn and YColumn and return it
if (dr[0] != DBNull.Value && dr[1] != DBNull.Value)
{
geom = new SharpMap.Geometries.Point((double)dr[0], (double)dr[1]);
}
}
}
conn.Close();
}
}
return(geom);
}
/// <summary>
/// Converts coordinates in projected meters to decimal degrees.
/// </summary>
/// <param name="p">Point in meters</param>
/// <returns>Transformed point in decimal degrees</returns>
public override SharpMap.Geometries.Point MetersToDegrees(SharpMap.Geometries.Point p)
{
double dLongitude = Double.NaN;
double dLatitude = Double.NaN;
/* Inverse equations
* -----------------*/
double dX = p.X - this._falseEasting;
double dY = p.Y - this._falseNorthing;
double ts = Math.Exp(-dY / (this._semiMajor * k0)); //t
double chi = HALF_PI - 2 * Math.Atan(ts);
double e4 = Math.Pow(e, 4);
double e6 = Math.Pow(e, 6);
double e8 = Math.Pow(e, 8);
dLatitude = chi + (e2 * 0.5 + 5 * e4 / 24 + e6 / 12 + 13 * e8 / 360) * Math.Sin(2 * chi)
+ (7 * e4 / 48 + 29 * e6 / 240 + 811 * e8 / 11520) * Math.Sin(4 * chi) +
+(7 * e6 / 120 + 81 * e8 / 1120) * Math.Sin(6 * chi) +
+(4279 * e8 / 161280) * Math.Sin(8 * chi);
//dLatitude = phi2z(e,ts,out flag);
/*if (flag != 0)
* {
* throw new ApplicationException();
* }*/
dLongitude = (p.X - this._falseEasting) / (this._semiMajor * k0) + lon_center;
//dLongitude = adjust_lon(lon_center + dX/(this._semiMajor * k0));
return(new SharpMap.Geometries.Point(Radians2Degrees(dLongitude), Radians2Degrees(dLatitude)));
}
/// <summary>
/// Returns the geometry corresponding to the Object ID
/// </summary>
/// <param name="oid">Object ID</param>
/// <returns>geometry</returns>
public SharpMap.Geometries.Geometry GetGeometryByID(uint oid)
{
SharpMap.Geometries.Geometry geom = null;
using (PgConnection conn = new PgConnection(_ConnectionString))
{
String strSql = String.Format("SELECT AsBinary({0}) As Geom FROM {1} WHERE {2} = '{3}'",
this.GeometryColumn,
this.Table,
this.ObjectIdColumn,
oid);
conn.Open();
using (PgCommand command = new PgCommand(strSql, conn))
{
using (PgDataReader dr = command.ExecuteReader())
{
while (dr.Read())
{
object obj = dr[0];
if (typeof(PgPoint) == obj.GetType())
{
geom = new SharpMap.Geometries.Point(((PgPoint)obj).X, ((PgPoint)obj).Y);
}
else if (obj != DBNull.Value)
{
geom = SharpMap.Converters.WellKnownBinary.GeometryFromWKB.Parse((byte[])dr[0]);
}
}
}
}
conn.Close();
}
return(geom);
}
public static SharpMap.Geometries.LinearRing CreateRectangle(SharpMap.Geometries.Point center, System.Drawing.SizeF size)
{
var wh = new System.Drawing.SizeF(size.Width * 0.5f, size.Height * 0.5f);
var lt = new SharpMap.Geometries.Point(center.X - wh.Width, center.Y + wh.Height);
var rb = new SharpMap.Geometries.Point(center.X + wh.Width, center.Y - wh.Height);
return(CreateRectangle(lt, rb));
}
public MapZoomChangedEventArgs(double previousZoom, double currentZoom, GeoPoint previousCenter,
GeoPoint currentCenter)
{
_previousZoom = previousZoom;
_currentZoom = currentZoom;
_previousCenter = previousCenter;
_currentCenter = currentCenter;
}
public GeoPoint(SharpMap.Geometries.Point p)
{
this.X = p.X;
this.Y = p.Y;
this.Z = 0;
SpatialReference = null;
dim = 0;
}
public void ImageToWorld_DefaultMap_ReturnValue()
{
SharpMap.Map map = new SharpMap.Map(new System.Drawing.Size(500, 200));
map.Center = new SharpMap.Geometries.Point(23, 34);
map.Zoom = 1000;
SharpMap.Geometries.Point p = map.ImageToWorld(new System.Drawing.PointF(242.5f, 92));
Assert.AreEqual(new SharpMap.Geometries.Point(8, 50), p);
}
public MapZoomChangedEventArgs(double previousZoom, double currentZoom, GeoPoint previousCenter,
GeoPoint currentCenter)
{
_previousZoom = previousZoom;
_currentZoom = currentZoom;
_previousCenter = previousCenter;
_currentCenter = currentCenter;
}
public static void EnsureVisible(SharpMap.Map map, SharpMap.Geometries.Point pt)
{
const double ensureVisibleRatio = 0.1d;
//Get current map envelope
var bb = map.Envelope;
System.Console.WriteLine(string.Format("Map envelope: {0}", bb));
//Set valid envelope
var evbb = bb.Grow(-ensureVisibleRatio * bb.Width, -ensureVisibleRatio * bb.Height);
System.Console.WriteLine(string.Format("Valid envelope: {0}", evbb));
//Test if Point is in valid envelope
if (evbb.Contains(pt))
{
return;
}
//It is not
System.Console.WriteLine(string.Format("Valid envelope does not contain {0}", pt));
//LineString from Map.Center -> to Point
var ls = new SharpMap.Geometries.LineString(new[] { evbb.GetCentroid(), pt });
System.Console.WriteLine(string.Format("LineString Map.Center -> Point: {0}", ls));
//Setup Linestring from BoundingBox
var gf = new NetTopologySuite.Geometries.GeometryFactory();
var evbbpts = new System.Collections.Generic.List <SharpMap.Geometries.Point>(
new[] { evbb.TopLeft, evbb.TopRight, evbb.BottomRight, evbb.BottomLeft, evbb.TopLeft });
var evbblinearring = new SharpMap.Geometries.LineString(evbbpts);
System.Console.WriteLine(string.Format("Linestring of valid envelope: {0}", evbblinearring));
// convert geometries to NTS
var ntsevbb = (NetTopologySuite.Geometries.LineString)
SharpMap.Converters.NTS.GeometryConverter.ToNTSGeometry(evbblinearring, gf);
var ntsls = (NetTopologySuite.Geometries.LineString)
SharpMap.Converters.NTS.GeometryConverter.ToNTSGeometry(ls, gf);
// Get intersection point
var intGeo = ntsevbb.Intersection(ntsls);
var intPt = (NetTopologySuite.Geometries.Point)intGeo;
System.Console.WriteLine(string.Format("Intersection point is: {0}", intPt));
//Compute offset
var dx = pt.X - intPt.X;
var dy = pt.Y - intPt.Y;
System.Console.WriteLine(string.Format("Map.Center needs to be shifted by: [{0}, {1}]", dx, dy));
//Set new center Center
map.Center = new SharpMap.Geometries.Point(map.Center.X + dx, map.Center.Y + dy);
}
/// <summary>
/// Transforms a coordinate point. The passed parameter point should not be modified.
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public override SharpMap.Geometries.Point Transform(SharpMap.Geometries.Point point)
{
SharpMap.Geometries.Point pOut = point.Clone();
pOut.X /= SourceGCS.AngularUnit.RadiansPerUnit;
pOut.X -= SourceGCS.PrimeMeridian.Longitude / SourceGCS.PrimeMeridian.AngularUnit.RadiansPerUnit;
pOut.X += TargetGCS.PrimeMeridian.Longitude / TargetGCS.PrimeMeridian.AngularUnit.RadiansPerUnit;
pOut.X *= SourceGCS.AngularUnit.RadiansPerUnit;
return(pOut);
}
private void mapImage_MouseDown(SharpMap.Geometries.Point WorldPos, MouseEventArgs ImagePos)
{
if (ImagePos.Button == MouseButtons.Right)
{
IsPositionStart = false;
mapImage.Cursor = Cursors.Hand;
label11.Visible = false;
}
}
/// <summary>
/// Converts coordinates in projected meters to decimal degrees.
/// </summary>
/// <param name="p">Point in meters</param>
/// <returns>Transformed point in decimal degrees</returns>
public override SharpMap.Geometries.Point MetersToDegrees(SharpMap.Geometries.Point p)
{
double con, phi; /* temporary angles */
double delta_phi; /* difference between longitudes */
long i; /* counter variable */
double sin_phi, cos_phi, tan_phi; /* sin cos and tangent values */
double c, cs, t, ts, n, r, d, ds; /* temporary variables */
long max_iter = 6; /* maximun number of iterations */
double x = p.X - false_easting;
double y = p.Y - false_northing;
con = (ml0 + y / scale_factor) / r_major;
phi = con;
for (i = 0;; i++)
{
delta_phi = ((con + e1 * Math.Sin(2.0 * phi) - e2 * Math.Sin(4.0 * phi) + e3 * Math.Sin(6.0 * phi))
/ e0) - phi;
phi += delta_phi;
if (Math.Abs(delta_phi) <= EPSLN)
{
break;
}
if (i >= max_iter)
{
throw new ApplicationException("Latitude failed to converge");
}
}
if (Math.Abs(phi) < HALF_PI)
{
sincos(phi, out sin_phi, out cos_phi);
tan_phi = Math.Tan(phi);
c = esp * Math.Pow(cos_phi, 2);
cs = Math.Pow(c, 2);
t = Math.Pow(tan_phi, 2);
ts = Math.Pow(t, 2);
con = 1.0 - es * Math.Pow(sin_phi, 2);
n = r_major / Math.Sqrt(con);
r = n * (1.0 - es) / con;
d = x / (n * scale_factor);
ds = Math.Pow(d, 2);
double lat = phi - (n * tan_phi * ds / r) * (0.5 - ds / 24.0 * (5.0 + 3.0 * t +
10.0 * c - 4.0 * cs - 9.0 * esp - ds / 30.0 * (61.0 + 90.0 * t +
298.0 * c + 45.0 * ts - 252.0 * esp - 3.0 * cs)));
double lon = adjust_lon(central_meridian + (d * (1.0 - ds / 6.0 * (1.0 + 2.0 * t +
c - ds / 20.0 * (5.0 - 2.0 * c + 28.0 * t - 3.0 * cs + 8.0 * esp +
24.0 * ts))) / cos_phi));
return(new SharpMap.Geometries.Point(Radians2Degrees(lon), Radians2Degrees(lat)));
}
else
{
return(new SharpMap.Geometries.Point(Radians2Degrees(HALF_PI * sign(y)), Radians2Degrees(central_meridian)));
}
}
private static IList <SMPoint> GetPoints(SqlGeometry geometry)
{
SMPoint[] pts = new SMPoint[(int)geometry.STNumPoints()];
for (int i = 1; i <= (int)geometry.STNumPoints(); i++)
{
SqlGeometry ptGeometry = geometry.STPointN(i);
pts[i - 1] = new SMPoint((double)ptGeometry.STX, (double)ptGeometry.STY);
}
return(pts);
}
private void GetBounds(SharpMap.Geometries.Point p1, SharpMap.Geometries.Point p2, out SharpMap.Geometries.Point lowerLeft, out SharpMap.Geometries.Point upperRight)
{
lowerLeft = new SharpMap.Geometries.Point(Math.Min(p1.X, p2.X), Math.Min(p1.Y, p2.Y));
upperRight = new SharpMap.Geometries.Point(Math.Max(p1.X, p2.X), Math.Max(p1.Y, p2.Y));
System.Diagnostics.Debug.WriteLine("p1: " + p1);
System.Diagnostics.Debug.WriteLine("p2: " + p2);
System.Diagnostics.Debug.WriteLine("lowerLeft: " + lowerLeft);
System.Diagnostics.Debug.WriteLine("upperRight: " + upperRight);
}
private static IList<SMPoint> GetPoints(SqlGeometry geometry)
{
SMPoint[] pts = new SMPoint[(int)geometry.STNumPoints()];
for (int i = 0; i < (int)geometry.STNumPoints(); i++)
{
SqlGeometry ptGeometry = geometry.STPointN(i);
pts[i] = new SMPoint((double)ptGeometry.STX, (double)ptGeometry.STY);
}
return pts;
}
private void panel1_Paint(object sender, PaintEventArgs e)
{
//绘制测距的线条
if (this.mapImage.ActiveTool == SharpMap.Forms.MapImage.Tools.Distance)
{
if (arrayDistancePoint.Count > 1)
{
SharpMap.Geometries.Point[] temp = new SharpMap.Geometries.Point[arrayDistancePoint.Count];
for (int i = 0; i < temp.Length; i++)
{
try
{
temp[i] = (SharpMap.Geometries.Point)arrayDistancePoint[i];
PointF tempDrawRECTPoint = this.mapImage.Map.WorldToImage(temp[i]);
e.Graphics.DrawRectangle(new Pen(Global.DistancePointColor, 7), tempDrawRECTPoint.X - 1, tempDrawRECTPoint.Y - 1, 2, 2);
}
catch
{ }
}
PointF[] DrawLineArray = new PointF[temp.Length];
for (int k = 0; k < DrawLineArray.Length; k++)
{
try
{
DrawLineArray[k] = this.mapImage.Map.WorldToImage(temp[k]);
}
catch
{ }
}
e.Graphics.DrawLines(new Pen(Global.DistanceLineColor, 2), DrawLineArray);
double totalDistance = 0;
for (int j = 1; j < temp.Length; j++)
{
try
{
if (temp[j] != temp[j - 1])
{
double distance = Math.Round(Math.Sqrt(Math.Pow(temp[j].X - temp[j - 1].X, 2) + Math.Pow(temp[j].Y - temp[j - 1].Y, 2)) * Global.MapDistanceKey, 1);
distance = Math.Round(distance, 1);
totalDistance += distance;
SharpMap.Geometries.Point tempPoint = new SharpMap.Geometries.Point((temp[j].X - temp[j - 1].X) / 2 + temp[j - 1].X, (temp[j].Y - temp[j - 1].Y) / 2 + temp[j - 1].Y);
e.Graphics.DrawString(distance.ToString() + "m", this.Font, new SolidBrush(Global.DistanceTextColor), this.mapImage.Map.WorldToImage(tempPoint));
}
}
catch
{ }
}
this.toolStripLabel1.Text = "总长度:" + totalDistance.ToString() + "m ";
temp = null;
}
}
}
public override FeatureList process(FeatureList input, FilterEnv env)
{
FeatureList output = new FeatureList();
//Boolean encontrado = false;
SharpMap.Geometries.BoundingBox boundingBox = new SharpMap.Geometries.BoundingBox(longitudeMin, latitudeMin, longitudeMax, latitudeMax);
foreach (Feature feature in input)
{
//if type of features is Point
if (feature.row.Geometry is SharpMap.Geometries.Point)
{
SharpMap.Geometries.Point p = (SharpMap.Geometries.Point)feature.row.Geometry;
if (boundingBox.Contains(p.GetBoundingBox()))
{
output.Add(feature);
}
}
//if type of features is Polygon
else if (feature.row.Geometry is SharpMap.Geometries.Polygon)
{
SharpMap.Geometries.Polygon polygon = (SharpMap.Geometries.Polygon)feature.row.Geometry;
if (boundingBox.Contains(polygon.GetBoundingBox()))
{
output.Add(feature);
}
}
//if type of features is MultiPolygon
else if (feature.row.Geometry is SharpMap.Geometries.MultiPolygon)
{
SharpMap.Geometries.MultiPolygon mp = (SharpMap.Geometries.MultiPolygon)feature.row.Geometry;
SharpMap.Geometries.BoundingBox bb = mp.GetBoundingBox();
if (boundingBox.Contains(bb))
{
output.Add(feature);
}
}
}
if (successor != null)
{
if (successor is FeatureFilter)
{
FeatureFilter filter = (FeatureFilter)successor;
FeatureList l = filter.process(output, env);
}
else if (successor is FragmentFilter)
{
FragmentFilter filter = (FragmentFilter)successor;
FragmentList l = filter.process(output, env);
}
}
return(output);
}
void MapBox_MouseDown(SharpMap.Geometries.Point WorldPos, MouseEventArgs ImagePos)
{
if (IsMouseInLegendBox(ImagePos) && ImagePos.Button == MouseButtons.Left)
{
_downPoint = new Point(ImagePos.X, ImagePos.Y);
}
else
{
_downPoint = null;
}
}
public ImageMapPoint(SharpMap.Geometries.Geometry geom, SharpMap.Map map, ImageMapStyle mapStyle)
: base(geom, map)
{
this.Radius = mapStyle.Point.Radius;
SharpMap.Geometries.Point P = geom as SharpMap.Geometries.Point;
PointF pf = map.WorldToImage(P);
map.MapTransform.TransformPoints(new PointF[] { pf });
center = new System.Drawing.Point((int)pf.X, (int)pf.Y);
}
private static void AddRing(SqlGeometryBuilder builder, SMLinearRing linearRing)
{
SMPoint pt = linearRing.StartPoint;
builder.BeginFigure(pt.X, pt.Y);
for (int i = 1; i < linearRing.NumPoints; i++)
{
pt = linearRing.Point(i);
builder.AddLine(pt.X, pt.Y);
}
builder.EndFigure();
}
private void mapImage_MouseUp(SharpMap.Geometries.Point WorldPos, MouseEventArgs ImagePos)
{
if (ImagePos.Button == MouseButtons.Left)
{
//左键
switch (this.mapImage.ActiveTool)
{
//测距
case SharpMap.Forms.MapImage.Tools.Distance:
if (!isStartMoveDistane)
{
arrayDistancePoint.Clear();
}
if (arrayDistancePoint.Count == 0)
{
arrayDistancePoint.Add(WorldPos);
}
arrayDistancePoint.Add(WorldPos);
isStartMoveDistane = true;
break;
}
}
else if (ImagePos.Button == MouseButtons.Right)
{
//右键
switch (this.mapImage.ActiveTool)
{
//当测距时若正在测距则停止添加新点，若已经停止测距则恢复成平移模式。
case SharpMap.Forms.MapImage.Tools.Distance:
if (isStartMoveDistane)
{
isStartMoveDistane = false;
arrayDistancePoint.RemoveAt(arrayDistancePoint.Count - 1);
this.panel1.Refresh();
}
else
{
goto default;
}
break;
//其余的时候都恢复成平移
default:
this.btn_ZommIn.Checked = false;
this.btn_ZommOut.Checked = false;
this.btn_Move.Checked = true;
this.btn_Distance.Checked = false;
this.mapImage.ActiveTool = SharpMap.Forms.MapImage.Tools.Pan;
break;
}
}
}
public static SharpMap.Geometries.LinearRing CreateRectangle(SharpMap.Geometries.Point leftTop, SharpMap.Geometries.Point rightBottom)
{
var pts = new[]
{
leftTop,
new SharpMap.Geometries.Point(rightBottom.X, leftTop.Y),
rightBottom,
new SharpMap.Geometries.Point(leftTop.X, rightBottom.Y),
leftTop
};
return(new SharpMap.Geometries.LinearRing(pts));
}
/// <summary>
/// Transforms from world coordinate system (WCS) to image coordinates
/// NOTE: This method DOES NOT take the MapTransform property into account (use SharpMap.Map.MapToWorld instead)
/// </summary>
/// <param name="p">Point in WCS</param>
/// <param name="map">Map reference</param>
/// <returns>Point in image coordinates</returns>
public static System.Drawing.PointF WorldtoMap(SharpMap.Geometries.Point p, SharpMap.Map map)
{
//if (map.MapTransform != null && !map.MapTransform.IsIdentity)
// map.MapTransform.TransformPoints(new System.Drawing.PointF[] { p });
System.Drawing.PointF result = new System.Drawing.Point();
double Height = (map.Zoom * map.Size.Height) / map.Size.Width;
double left = map.Center.X - map.Zoom * 0.5;
double top = map.Center.Y + Height * 0.5 * map.PixelAspectRatio;
result.X = (float)((p.X - left) / map.PixelWidth);
result.Y = (float)((top - p.Y) / map.PixelHeight);
return(result);
}
/// <summary>
/// Initializes a new map
/// </summary>
/// <param name="size">Size of map in pixels</param>
public Map(System.Drawing.Size size)
{
this.Size = size;
this.Layers = new List <SharpMap.Layers.ILayer>();
this.BackColor = System.Drawing.Color.Transparent;
this._MaximumZoom = double.MaxValue;
this._MinimumZoom = 0;
_MapTransform = new System.Drawing.Drawing2D.Matrix();
MapTransformInverted = new System.Drawing.Drawing2D.Matrix();
_Center = new SharpMap.Geometries.Point(0, 0);
_Zoom = 1;
_PixelAspectRatio = 1.0;
}
private static void SharpMapLineStringToSqlGeometry(SqlGeometryBuilder geomBuilder, SMLineString lineString)
{
geomBuilder.BeginGeometry(OpenGisGeometryType.LineString);
SMPoint point = lineString.StartPoint;
geomBuilder.BeginFigure(point.X, point.Y);
for (int i = 1; i < lineString.NumPoints; i++)
{
point = lineString.Point(i);
geomBuilder.AddLine(point.X, point.Y);
}
geomBuilder.EndFigure();
geomBuilder.EndGeometry();
}
/// <summary>
/// Renders a point to the map.
/// </summary>
/// <param name="g">Graphics reference</param>
/// <param name="point">Point to render</param>
/// <param name="symbol">Symbol to place over point</param>
/// <param name="symbolscale">The amount that the symbol should be scaled. A scale of '1' equals to no scaling</param>
/// <param name="offset">Symbol offset af scale=1</param>
/// <param name="rotation">Symbol rotation in degrees</param>
/// <param name="map">Map reference</param>
public static void DrawPoint(System.Drawing.Graphics g, SharpMap.Geometries.Point point, System.Drawing.Bitmap symbol, float symbolscale, System.Drawing.PointF offset, float rotation, SharpMap.Map map)
{
if (point == null)
{
return;
}
if (symbol == null) //We have no point style - Use a default symbol
{
symbol = defaultsymbol;
}
System.Drawing.PointF pp = SharpMap.Utilities.Transform.WorldtoMap(point, map);
Matrix startingTransform = g.Transform;
if (rotation != 0 && !Single.IsNaN(rotation))
{
System.Drawing.PointF rotationCenter = System.Drawing.PointF.Add(pp, new System.Drawing.SizeF(symbol.Width / 2, symbol.Height / 2));
Matrix transform = new Matrix();
transform.RotateAt(rotation, rotationCenter);
g.Transform = transform;
if (symbolscale == 1f)
{
g.DrawImageUnscaled(symbol, (int)(pp.X - symbol.Width / 2 + offset.X), (int)(pp.Y - symbol.Height / 2 + offset.Y));
}
else
{
float width = symbol.Width * symbolscale;
float height = symbol.Height * symbolscale;
g.DrawImage(symbol, (int)pp.X - width / 2 + offset.X * symbolscale, (int)pp.Y - height / 2 + offset.Y * symbolscale, width, height);
}
g.Transform = startingTransform;
}
else
{
if (symbolscale == 1f)
{
g.DrawImageUnscaled(symbol, (int)(pp.X - symbol.Width / 2 + offset.X), (int)(pp.Y - symbol.Height / 2 + offset.Y));
}
else
{
float width = symbol.Width * symbolscale;
float height = symbol.Height * symbolscale;
g.DrawImage(symbol, (int)pp.X - width / 2 + offset.X * symbolscale, (int)pp.Y - height / 2 + offset.Y * symbolscale, width, height);
}
}
}
public override SharpMap.Geometries.Point Transform(SharpMap.Geometries.Point point)
{
if (!(point is SharpMap.Geometries.Point3D))
{
throw new ArgumentException("Datum transformation requires a 3D point");
}
if (!_isInverse)
{
return(Apply(point as SharpMap.Geometries.Point3D));
}
else
{
return(ApplyInverted(point as SharpMap.Geometries.Point3D));
}
}
public void BL2XY(double iLongtitude, double iLatitude, out double iProjectedX, out double iProjectedY)
{
SharpMap.Geometries.Point ptInput = new SharpMap.Geometries.Point(iLongtitude, iLatitude);
iProjectedX = -1;
iProjectedY = -1;
//if (Math.Abs(ptInput.X) > 360)
// return null;
int nCenterLongitude = ((int)(ptInput.X / 3)) * 3;
CoordinateSystemFactory cFac = new SharpMap.CoordinateSystems.CoordinateSystemFactory();
//创建椭球体
IEllipsoid ellipsoid = cFac.CreateFlattenedSphere("Xian 1980", 6378140, 298.257, SharpMap.CoordinateSystems.LinearUnit.Metre);
IHorizontalDatum datum = cFac.CreateHorizontalDatum("Xian_1980", DatumType.HD_Geocentric, ellipsoid, null);
//创建地理坐标系
SharpMap.CoordinateSystems.IGeographicCoordinateSystem gcs = cFac.CreateGeographicCoordinateSystem(
"Xian 1980", SharpMap.CoordinateSystems.AngularUnit.Degrees, datum,
SharpMap.CoordinateSystems.PrimeMeridian.Greenwich,
new AxisInfo("Lon", AxisOrientationEnum.East),
new AxisInfo("Lat", AxisOrientationEnum.North));
List <ProjectionParameter> parameters = new List <ProjectionParameter>(5);
parameters.Add(new ProjectionParameter("latitude_of_origin", 0));
parameters.Add(new ProjectionParameter("central_meridian", nCenterLongitude));
parameters.Add(new ProjectionParameter("scale_factor", 1.0));
parameters.Add(new ProjectionParameter("false_easting", 500000));
parameters.Add(new ProjectionParameter("false_northing", 0.0));
//创建投影坐标系
SharpMap.CoordinateSystems.IProjection projection = cFac.CreateProjection("Transverse Mercator", "Transverse_Mercator", parameters);
SharpMap.CoordinateSystems.IProjectedCoordinateSystem coordsys = cFac.CreateProjectedCoordinateSystem(
"Xian_1980_3_Degree_GK_CM", gcs,
projection, SharpMap.CoordinateSystems.LinearUnit.Metre,
new AxisInfo("East", AxisOrientationEnum.East),
new AxisInfo("North", AxisOrientationEnum.North));
//创建坐标转换器
ICoordinateTransformation trans = new CoordinateTransformationFactory().CreateFromCoordinateSystems(gcs, coordsys);
//工作区坐标到投影坐标系的转换
SharpMap.Geometries.Point ptOutput = trans.MathTransform.Transform(ptInput);
iProjectedX = ptOutput.X;
iProjectedY = ptOutput.Y;
}
protected void imgMap_Click(object sender, ImageClickEventArgs e)
{
//Set center of the map to where the client clicked
//We set up a simple empty map so we can use the ImageToWorld() method for easy conversion from Image to World coordinates
SharpMap.Map myMap = new SharpMap.Map(new Size(Convert.ToInt32(imgMap.Width.Value), Convert.ToInt32(imgMap.Height.Value)));
myMap.Center = Center; myMap.Zoom = Zoom;
Center = myMap.ImageToWorld(new System.Drawing.Point(e.X, e.Y));
//Set zoom value if any of the zoom tools were selected
if (rblMapTools.SelectedValue == "0") //Zoom in
Zoom = Zoom * 0.5;
else if (rblMapTools.SelectedValue == "1") //Zoom out
Zoom = Zoom * 2;
//Create the map
GenerateMap();
}
/// <summary>
/// Converts coordinates in projected meters to decimal degrees.
/// </summary>
/// <param name="p">Point in meters</param>
/// <returns>Transformed point in decimal degrees</returns>
public override SharpMap.Geometries.Point MetersToDegrees(SharpMap.Geometries.Point p)
{
double dLongitude = Double.NaN;
double dLatitude = Double.NaN;
double rh1; /* height above ellipsoid */
double con; /* sign variable */
double ts; /* small t */
double theta; /* angle */
long flag; /* error flag */
flag = 0;
double dX = p.X - this._falseEasting;
double dY = rh - p.Y + this._falseNorthing;
if (ns > 0)
{
rh1 = Math.Sqrt(dX * dX + dY * dY);
con = 1.0;
}
else
{
rh1 = -Math.Sqrt(dX * dX + dY * dY);
con = -1.0;
}
theta = 0.0;
if (rh1 != 0)
{
theta = Math.Atan2((con * dX), (con * dY));
}
if ((rh1 != 0) || (ns > 0.0))
{
con = 1.0 / ns;
ts = Math.Pow((rh1 / (this._semiMajor * f0)), con);
dLatitude = phi2z(e, ts, out flag);
if (flag != 0)
{
throw new ApplicationException();
}
}
else
{
dLatitude = -HALF_PI;
}
dLongitude = adjust_lon(theta / ns + center_lon);
return(new SharpMap.Geometries.Point(Radians2Degrees(dLongitude), Radians2Degrees(dLatitude)));
}
private void FormMovingObjectOverTileLayer_Load(object sender, EventArgs e)
{
//Lisbon...
#if DotSpatialProjections
var mathTransform = LayerTools.Wgs84toGoogleMercator;
SharpMap.Geometries.BoundingBox geom = GeometryTransform.TransformBox(
new SharpMap.Geometries.BoundingBox(-9.205626, 38.690993, -9.123736, 38.740837),
mathTransform.Source, mathTransform.Target);
#else
var mathTransform = LayerTools.Wgs84toGoogleMercator.MathTransform;
SharpMap.Geometries.BoundingBox geom = GeometryTransform.TransformBox(
new SharpMap.Geometries.BoundingBox(-9.205626, 38.690993, -9.123736, 38.740837),
mathTransform);
#endif
//Google Background
TileAsyncLayer layer2 = new TileAsyncLayer(new OsmTileSource(), "TileLayer - OSM");
this.mapBox1.Map.BackgroundLayer.Add(layer2);
//Adds a static layer
VectorLayer staticLayer = new VectorLayer("Fixed Marker");
//position = geom.GetCentroid();
List<SharpMap.Geometries.Geometry> aux = new List<SharpMap.Geometries.Geometry>();
aux.Add(geom.GetCentroid());
staticLayer.Style.Symbol = Resources.PumpSmall;
SharpMap.Data.Providers.GeometryProvider geoProviderFixed = new SharpMap.Data.Providers.GeometryProvider(aux);
staticLayer.DataSource = geoProviderFixed;
this.mapBox1.Map.Layers.Add(staticLayer);
//Adds a moving variable layer
VectorLayer pushPinLayer = new VectorLayer("PushPins");
position = geom.GetCentroid();
geos.Add(position);
pushPinLayer.Style.Symbol = Resources.OutfallSmall;
SharpMap.Data.Providers.GeometryProvider geoProvider = new SharpMap.Data.Providers.GeometryProvider(geos);
pushPinLayer.DataSource = geoProvider;
this.mapBox1.Map.VariableLayers.Add(pushPinLayer);
this.mapBox1.Map.ZoomToBox(geom);
this.mapBox1.Refresh();
}
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
//Page is post back. Restore center and zoom-values from viewstate
Center = (SharpMap.Geometries.Point)ViewState["mapCenter"];
Zoom = (double)ViewState["mapZoom"];
}
else
{
Center = new SharpMap.Geometries.Point(0,0);
Zoom = 360;
//Create the map
GenerateMap();
}
PrintWmsInfo();
}
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
//Page is post back. Restore center and zoom-values from viewstate
Center = (SharpMap.Geometries.Point)ViewState["mapCenter"];
Zoom = (double)ViewState["mapZoom"];
}
else
{
//This is the initial view of the map.
Center = new SharpMap.Geometries.Point(12,48);
Zoom = 45;
//Create the map
GenerateMap();
}
}
protected void ddlProjection_SelectedIndexChanged(object sender, EventArgs e)
{
//Transform current view to new coordinate system and zoom to the transformed box
string PreviousProj = ViewState["currentProj"].ToString();
string SelectedProj = ddlProjection.SelectedValue;
//Points defining the current view
SharpMap.Geometries.Point left = new SharpMap.Geometries.Point(myMap.Envelope.Left, myMap.Center.Y);
SharpMap.Geometries.Point right = new SharpMap.Geometries.Point(myMap.Envelope.Right, myMap.Center.Y);
SharpMap.Geometries.Point center = myMap.Center;
if (PreviousProj != "Pseudo")
{
//Transform current view back to geographic coordinates
ICoordinateTransformation trans = GetTransform(PreviousProj);
left = GeometryTransform.TransformPoint(new SharpMap.Geometries.Point(myMap.Envelope.Left, myMap.Center.Y), trans.MathTransform.Inverse());
right = GeometryTransform.TransformPoint(new SharpMap.Geometries.Point(myMap.Envelope.Right, myMap.Center.Y), trans.MathTransform.Inverse());
center = GeometryTransform.TransformPoint(myMap.Center, trans.MathTransform.Inverse());
}
//If both PreviousSRID and SelectedSRID are projected coordsys, first transform to geographic
if (SelectedProj == "Pseudo")
{
myMap.Center = center;
myMap.Zoom = Math.Abs(right.X - left.X);
}
else //Project coordinates to new projection
{
//Transform back to geographic and over to new projection
ICoordinateTransformation trans = GetTransform(SelectedProj);
left = GeometryTransform.TransformPoint(left, trans.MathTransform);
right = GeometryTransform.TransformPoint(right, trans.MathTransform);
center = GeometryTransform.TransformPoint(center, trans.MathTransform);
myMap.Center = center;
myMap.Zoom = Math.Abs(right.X - left.X);
SharpMap.Geometries.BoundingBox envelopeGcs =GeometryTransform.TransformBox(myMap.Envelope, trans.MathTransform.Inverse());
litEnvelopeLatLong.Text = envelopeGcs.ToString();
}
GenerateMap();
}
/// <summary>
/// Renders a point to the map.
/// </summary>
/// <param name="g">Graphics reference</param>
/// <param name="point">Point to render</param>
/// <param name="symbol">Symbol to place over point</param>
/// <param name="symbolscale">The amount that the symbol should be scaled. A scale of '1' equals to no scaling</param>
/// <param name="offset">Symbol offset af scale=1</param>
/// <param name="rotation">Symbol rotation in degrees</param>
/// <param name="map">Map reference</param>
public static void DrawCircle(System.Drawing.Graphics g, SharpMap.Geometries.GISCircle circle, System.Drawing.Brush brush, System.Drawing.Pen pen, bool clip, SharpMap.Map map)
{
if (circle == null)
return;
double radius = circle.RadiusSexagecimal;
SharpMap.Geometries.Point p = new SharpMap.Geometries.Point(circle.X - radius, circle.Y - radius);
System.Drawing.PointF pp0 = SharpMap.Utilities.Transform.WorldtoMap(p, map);
p.X = circle.X + radius;
p.Y = circle.Y + radius;
System.Drawing.PointF pp1 = SharpMap.Utilities.Transform.WorldtoMap(p, map);
System.Drawing.Rectangle rect = new System.Drawing.Rectangle((int)pp0.X, (int)pp0.Y, (int)(pp1.X - pp0.X), (int)(pp1.Y - pp0.Y));
g.FillEllipse(brush, rect);
g.DrawEllipse(pen, rect);
pp1 = SharpMap.Utilities.Transform.WorldtoMap(circle, map);
}
public override FeatureList process(FeatureList input, FilterEnv env)
{
FeatureList output = new FeatureList();
// HACER ALGO DEL ESTILO:
if (transform == null)
{
//Create zone UTM 32N projection
IProjectedCoordinateSystem utmProj = CreateUtmProjection(32);
//Create geographic coordinate system (lets just reuse the CS from the projection)
IGeographicCoordinateSystem geoCS = utmProj.GeographicCoordinateSystem;
//Create transformation
CoordinateTransformationFactory ctFac = new CoordinateTransformationFactory();
// TODO DANI Mirar de donde viene este source y target
ICoordinateTransformation Coordinatetransform = null;// TODO = ctFac.CreateFromCoordinateSystems(source, target);
//cs
string wkt = "GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137,298.257223563]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.0174532925199433]]";
//ICoordinateSystem cs = SharpMap.Converters.WellKnownText.CoordinateSystemWktReader.Parse(wkt) as ICoordinateSystem;
ICoordinateSystem cs = ProjNet.Converters.WellKnownText.CoordinateSystemWktReader.Parse(wkt) as ICoordinateSystem;
//wgs84
GeographicCoordinateSystem wgs84 = GeographicCoordinateSystem.WGS84;
//gcs
CoordinateSystemFactory cFac = new ProjNet.CoordinateSystems.CoordinateSystemFactory();
//CoordinateSystemFactory cFac = new SharpMap.CoordinateSystems.CoordinateSystemFactory();
//Create Bessel 1840 geographic coordinate system
IEllipsoid ellipsoid = cFac.CreateFlattenedSphere("Bessel 1840", 6377397.155, 299.15281, LinearUnit.Metre);
IHorizontalDatum datum = cFac.CreateHorizontalDatum("Bessel 1840", DatumType.HD_Geocentric, ellipsoid, null);
IGeographicCoordinateSystem gcs = cFac.CreateGeographicCoordinateSystem("Bessel 1840", AngularUnit.Degrees, datum,
PrimeMeridian.Greenwich, new AxisInfo("Lon", AxisOrientationEnum.East),
new AxisInfo("Lat", AxisOrientationEnum.North));
//coordsys
//Collection<ProjectionParameter> parameters = new Collection<ProjectionParameter>(5);
List<ProjectionParameter> parameters = new List<ProjectionParameter>();
parameters.Add(new ProjectionParameter("latitude_of_origin", 0));
parameters.Add(new ProjectionParameter("central_meridian", 110));
parameters.Add(new ProjectionParameter("scale_factor", 0.997));
parameters.Add(new ProjectionParameter("false_easting", 3900000));
parameters.Add(new ProjectionParameter("false_northing", 900000));
IProjection projection = cFac.CreateProjection("Mercator_1SP", "Mercator_1SP", parameters);
IProjectedCoordinateSystem coordsys =
cFac.CreateProjectedCoordinateSystem("Makassar / NEIEZ", gcs, projection, LinearUnit.Metre,
new AxisInfo("East", AxisOrientationEnum.East),
new AxisInfo("North", AxisOrientationEnum.North));
Coordinatetransform = ctFac.CreateFromCoordinateSystems(gcs, coordsys);//gcsWGS84 -> gcenCsWGS84
//Apply transformation
transform = Coordinatetransform.MathTransform;
}
SharpMap.Geometries.Point p = new SharpMap.Geometries.Point(30.0, 20.0);
p = GeometryTransform.TransformPoint(p,transform);
/*IMPORTANTE
foreach (Feature feature in input)
{
feature.row.Geometry = GeometryTransform.TransformGeometry(feature.row.Geometry, transform);
//feature.row.Geometry = GeometryTransform.TransformMultiPolygon(feature.row.Geometry, transform);
}
IMPORTANTE*/
foreach (Feature f in input)
{
output.Add(f);//output = input
}
// Cosas a cambiar:
// Primero, la construccion del transform está siguiendo el ejemplo, pero hay que tener en cuenta los datos del xml y construirlo en consecuencia
// Segundo, el filtro debe retornar una NUEVA lista, y no modificar la inicial. Ahora modifica los valores de la lista inicial
// IMPORTANTE RETORNAR NUEVA LISTA OUTPUT <----------- FALTA POR HACER
#if TODO
// first time through, establish a working SRS for output data.
if (working_srs == null)
{
// first try to use the terrain SRS if so directed:
SpatialReference new_out_srs = getUseTerrainSRS() ? env.getTerrainSRS() : null;
if (new_out_srs == null)
{
// failing that, see if we have an SRS in a resource:
if (getSRS() == null && getSRSScript() != null)
{
ScriptResult r = env.getScriptEngine().run(getSRSScript(), env);
if (r.isValid())
setSRS(env.getSession().getResources().getSRS(r.ToString()));
else
env.getReport().error(r.ToString());
}
new_out_srs = srs;
}
// set the "working" SRS that will be used for all features passing though this filter:
working_srs = new_out_srs != null ? new_out_srs : env.getInputSRS();
// LOCALIZE points around a local origin (the working extent's centroid)
if (working_srs != null && getLocalize()) //&& env.getExtent().getArea() > 0.0 )
{
if (env.getCellExtent().getSRS().isGeographic() && env.getCellExtent().getWidth() > 179.0)
{
//NOP - no localization for big geog extent ... needs more thought perhaps
}
else
{
GeoPoint centroid0 = new_out_srs != null ?
new_out_srs.transform(env.getCellExtent().getCentroid()) :
env.getCellExtent().getCentroid();
// we do want the localizer point on the surface if possible:
GeoPoint centroid = clampToTerrain(centroid0, env);
if (centroid == null)
centroid = centroid0;
Matrixd localizer;
// For geocentric datasets, we need a special localizer matrix:
if (working_srs.isGeocentric())
{
localizer = working_srs.getEllipsoid().createGeocentricInvRefFrame(centroid);
localizer.invert(localizer);
}
// For projected datasets, just a simple translation:
else
{
localizer = osg.Matrixd.translate(-centroid);
}
working_srs = working_srs.cloneWithNewReferenceFrame(localizer);
}
}
}
// we have to assign the output SRS on each pass
if (working_srs != null)
{
env.setOutputSRS(working_srs);
}
return base.process(input, env);
#endif
//throw new NotImplementedException();
if (successor != null)
{
if (successor is FeatureFilter)
{
FeatureFilter filter = (FeatureFilter)successor;
FeatureList l = filter.process(output, env);
}
else if (successor is FragmentFilter)
{
FragmentFilter filter = (FragmentFilter)successor;
FragmentList l = filter.process(output, env);
}
}
return output;
}
/// <summary>
/// Calculate the floating point error metric
/// </summary>
/// <returns></returns>
public double ErrorMetric(SharpMap.Geometries.BoundingBox box)
{
SharpMap.Geometries.Point temp = new SharpMap.Geometries.Point(1, 1) + (box.Max - box.Min);
return temp.X*temp.Y;
}
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
if (_map != null)
{
if (MouseUp != null)
MouseUp(_map.ImageToWorld(new Point(e.X, e.Y)), e);
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Middle)
{
if (_activeTool == Tools.ZoomOut)
{
double scale = 0.5;
if (_dragging)
{
if (e.Y - _dragStartPoint.Y < 0) //Zoom out
scale = (float)Math.Pow(1 / (float)(_dragStartPoint.Y - e.Y), 0.5);
else //Zoom in
scale = 1 + (e.Y - _dragStartPoint.Y) * 0.1;
}
else
{
_map.Center = _map.ImageToWorld(new Point(e.X, e.Y));
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
_map.Zoom /= scale;
if (MapZoomChanged != null)
MapZoomChanged(_map.Zoom);
}
else if (_activeTool == Tools.ZoomIn)
{
double scale = 2;
if (_dragging)
{
if (e.Y - _dragStartPoint.Y < 0) //Zoom out
scale = (float)Math.Pow(1 / (float)(_dragStartPoint.Y - e.Y), 0.5);
else //Zoom in
scale = 1 + (e.Y - _dragStartPoint.Y) * 0.1;
}
else
{
_map.Center = _map.ImageToWorld(new Point(e.X, e.Y));
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
_map.Zoom *= 1 / scale;
if (MapZoomChanged != null)
MapZoomChanged(_map.Zoom);
}
else if ((_activeTool == Tools.Pan && !(_shiftButtonDragRectangleZoom && (Control.ModifierKeys & Keys.Shift) != Keys.None)) ||
(e.Button == System.Windows.Forms.MouseButtons.Left && _dragging && (_activeTool == Tools.DrawLine || _activeTool == Tools.DrawPolygon)))
{
if (_dragging)
{
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
else
{
if (_panOnClick)
{
_map.Center = _map.ImageToWorld(new Point(e.X, e.Y));
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
}
}
else if (_activeTool == Tools.Query || _activeTool == Tools.QueryGeometry)
{
if (_map.Layers.Count > _queryLayerIndex && _queryLayerIndex > -1)
{
var layer = _map.Layers[_queryLayerIndex] as ICanQueryLayer;
if (layer != null)
{
BoundingBox bounding;
bool isPoint = false;
if (_dragging)
{
GeoPoint lowerLeft;
GeoPoint upperRight;
GetBounds(_map.ImageToWorld(_dragStartPoint), _map.ImageToWorld(_dragEndPoint), out lowerLeft, out upperRight);
bounding = new BoundingBox(lowerLeft, upperRight);
}
else
{
bounding =
_map.ImageToWorld(new Point(e.X, e.Y)).GetBoundingBox().Grow(_map.PixelSize*
_queryGrowFactor);
isPoint = true;
}
Data.FeatureDataSet ds = new Data.FeatureDataSet();
if (_activeTool == Tools.Query)
layer.ExecuteIntersectionQuery(bounding, ds);
else
{
Geometry geom;
if (isPoint && QueryGrowFactor == 0)
geom = _map.ImageToWorld(new Point(e.X, e.Y));
else
geom = bounding.ToGeometry();
layer.ExecuteIntersectionQuery(geom, ds);
}
if (ds.Tables.Count > 0)
if (MapQueried != null) MapQueried(ds.Tables[0]);
else if (MapQueried != null) MapQueried(new Data.FeatureDataTable());
}
}
else
MessageBox.Show("No active layer to query");
}
else if (_activeTool == Tools.ZoomWindow || (_shiftButtonDragRectangleZoom && (Control.ModifierKeys & Keys.Shift) != Keys.None))
{
if (_rectangle.Width > 0 && _rectangle.Height > 0)
{
GeoPoint lowerLeft;
GeoPoint upperRight;
GetBounds(_map.ImageToWorld(_dragStartPoint), _map.ImageToWorld(_dragEndPoint), out lowerLeft, out upperRight);
_dragEndPoint.X = 0;
_dragEndPoint.Y = 0;
_map.ZoomToBox(new BoundingBox(lowerLeft, upperRight));
if (MapZoomChanged != null)
MapZoomChanged(_map.Zoom);
}
}
else if (_activeTool == Tools.DrawPoint)
{
if (GeometryDefined != null)
{
GeometryDefined(Map.ImageToWorld(new PointF(e.X, e.Y)));
}
}
else if (_activeTool == Tools.DrawPolygon || _activeTool == Tools.DrawLine)
{
//pointArray = null;
if (_pointArray == null)
{
_pointArray = new SharpMap.Geometries.Point[2];
_pointArray[0] = Map.ImageToWorld(e.Location);
_pointArray[1] = Map.ImageToWorld(e.Location);
}
else
{
SharpMap.Geometries.Point[] temp = new SharpMap.Geometries.Point[_pointArray.GetUpperBound(0) + 2];
for (int i = 0; i <= _pointArray.GetUpperBound(0); i++)
temp[i] = _pointArray[i];
temp[temp.GetUpperBound(0)] = Map.ImageToWorld(e.Location);
_pointArray = temp;
}
}
}
if (_dragging)
{
_dragging = false;
if (_activeTool == Tools.Query)
Invalidate(_rectangle);
if (_activeTool == Tools.ZoomWindow || _activeTool == Tools.Query)
_rectangle = Rectangle.Empty;
Refresh();
}
else if (_activeTool == Tools.ZoomIn || _activeTool == Tools.ZoomOut || _activeTool == Tools.Pan)
{
Refresh();
}
}
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (_map != null)
{
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Middle) //dragging
{
_dragStartPoint = e.Location;
_dragEndPoint = e.Location;
_dragStartCoord = _map.Center;
_orgScale = _map.Zoom;
}
if (MouseDown != null)
MouseDown(_map.ImageToWorld(new Point(e.X, e.Y)), e);
}
}
private Bitmap GeneratePartialBitmap(GeoPoint center, XPosition xPos, YPosition yPos)
{
double x = center.X, y = center.Y;
switch (xPos)
{
case XPosition.Right:
x += _map.Envelope.Width;
break;
case XPosition.Left:
x -= _map.Envelope.Width;
break;
}
switch (yPos)
{
case YPosition.Top:
y += _map.Envelope.Height;
break;
case YPosition.Bottom:
y -= _map.Envelope.Height;
break;
}
_map.Center = new GeoPoint(x, y);
return _map.GetMap() as Bitmap;
}
/// <summary>
/// Returns the geometry corresponding to the Object ID
/// </summary>
/// <param name="oid">Object ID</param>
/// <returns>geometry</returns>
public SharpMap.Geometries.Geometry GetGeometryByID(uint oid)
{
SharpMap.Geometries.Geometry geom = null;
using (System.Data.OleDb.OleDbConnection conn = new OleDbConnection(_ConnectionString))
{
string strSQL = "Select " + this.XColumn + ", " + this.YColumn + " FROM " + this.Table + " WHERE " + this.ObjectIdColumn + "=" + oid.ToString();
using (System.Data.OleDb.OleDbCommand command = new OleDbCommand(strSQL, conn))
{
conn.Open();
using (System.Data.OleDb.OleDbDataReader dr = command.ExecuteReader())
{
if(dr.Read())
{
//If the read row is OK, create a point geometry from the XColumn and YColumn and return it
if (dr[0] != DBNull.Value && dr[1] != DBNull.Value)
geom = new SharpMap.Geometries.Point((double)dr[0], (double)dr[1]);
}
}
conn.Close();
}
}
return geom;
}
public ReportElement()
{
UltimoPunto = null;
PuntoActual = null;
}
internal void AddInformation(ReportElement rpt)
{
// la idea es aproximar el esquema de velocidades por trapecios.
if (rpt._VelocidadMaxima > _VelocidadMaxima)
{
_VelocidadMaxima = rpt._VelocidadMaxima;
}
if (_Estado == EstadosPosibles.Transito)
{
PuntoActual = ProyectarPunto(rpt.Longitud, rpt.Latitud);
ActualizarDistanciaRecorrida();
/*System.Diagnostics.Debug.WriteLine(this.PuntoActual);
System.Diagnostics.Debug.WriteLine(this.UltimoPunto);
System.Diagnostics.Debug.WriteLine(this.DistanciaRecorrida);*/
}
}
private void ActualizarDistanciaRecorrida()
{
_DistanciaRecorrida += CalcularDistanciaSegmento(UltimoPunto, PuntoActual);
UltimoPunto = PuntoActual;
}
/// <summary>
/// Initializes a new map
/// </summary>
/// <param name="size">Size of map in pixels</param>
public Map(System.Drawing.Size size)
{
this.Size = size;
this.Layers = new List<SharpMap.Layers.ILayer>();
this.BackColor = System.Drawing.Color.Transparent;
this._MaximumZoom = double.MaxValue;
this._MinimumZoom = 0;
_MapTransform = new System.Drawing.Drawing2D.Matrix();
MapTransformInverted = new System.Drawing.Drawing2D.Matrix();
_Center = new SharpMap.Geometries.Point(0, 0);
_Zoom = 1;
_PixelAspectRatio = 1.0;
}
/// <summary>
/// Return an array with the six affine transformation parameters {a,b,c,d,e,f} and the sum of the squares of the residuals (s0)
/// </summary>
/// <remarks>
/// a,b defines scale vector 1 of coordinate system, d,e scale vector 2. c,f defines offset.
/// <para>
/// Converting from input (X,Y) to output coordinate system (X',Y') is done by:
/// X' = a*X + b*Y + c, Y' = d*X + e*Y + f
/// </para>
/// <para>
/// Transformation based on Mikhail "Introduction to Modern Photogrammetry" p. 399-300.
/// Extended to arbitrary number of measurements by M. Nielsen
/// </para>
/// </remarks>
/// <returns>Array with the six transformation parameters and sum of squared residuals: a,b,c,d,e,f,s0</returns>
public double[] GetAffineTransformation()
{
if(inputs.Count<3)
throw(new System.Exception("At least 3 measurements required to calculate affine transformation"));
//double precision isn't always enough when transforming large numbers.
//Lets subtract some mean values and add them later again:
//Find approximate center values:
SharpMap.Geometries.Point meanInput = new SharpMap.Geometries.Point(0, 0);
SharpMap.Geometries.Point meanOutput = new SharpMap.Geometries.Point(0, 0);
for (int i = 0; i < inputs.Count; i++)
{
meanInput.X += inputs[i].X;
meanInput.Y += inputs[i].Y;
meanOutput.X += outputs[i].X;
meanOutput.Y += outputs[i].Y;
}
meanInput.X = Math.Round(meanInput.X / inputs.Count);
meanInput.Y = Math.Round(meanInput.Y / inputs.Count);
meanOutput.X = Math.Round(meanOutput.X / inputs.Count);
meanOutput.Y = Math.Round(meanOutput.Y / inputs.Count);
double[][] N = CreateMatrix(3,3);
//Create normal equation: transpose(B)*B
//B: matrix of calibrated values. Example of row in B: [x , y , -1]
for (int i = 0; i < inputs.Count; i++)
{
//Subtract mean values
inputs[i].X -= meanInput.X;
inputs[i].Y -= meanInput.Y;
outputs[i].X -= meanOutput.X;
outputs[i].Y -= meanOutput.Y;
//Calculate summed values
N[0][0] += Math.Pow(inputs[i].X,2);
N[0][1] += inputs[i].X*inputs[i].Y;
N[0][2] += -inputs[i].X;
N[1][1] += Math.Pow(inputs[i].Y,2);
N[1][2] += -inputs[i].Y;
}
N[2][2] = inputs.Count;
double[] t1 = new double[3];
double[] t2 = new double[3];
for (int i = 0; i < inputs.Count; i++)
{
t1[0] += inputs[i].X * outputs[i].X;
t1[1] += inputs[i].Y * outputs[i].X;
t1[2] += -outputs[i].X;
t2[0] += inputs[i].X * outputs[i].Y;
t2[1] += inputs[i].Y * outputs[i].Y;
t2[2] += -outputs[i].Y;
}
double[] trans = new double[7];
// Solve equation N = transpose(B)*t1
double frac = 1 / (-N[0][0]*N[1][1]*N[2][2]+N[0][0]*Math.Pow(N[1][2],2)+Math.Pow(N[0][1],2)*N[2][2]-2*N[1][2]*N[0][1]*N[0][2]+N[1][1]*Math.Pow(N[0][2],2));
trans[0] = (-N[0][1]*N[1][2]*t1[2]+N[0][1]* t1[1]*N[2][2]-N[0][2]*N[1][2]*t1[1]+N[0][2]*N[1][1]*t1[2]-t1[0]*N[1][1]*N[2][2]+t1[0]*Math.Pow(N[1][2],2)) * frac;
trans[1] = (-N[0][1]*N[0][2]*t1[2]+N[0][1]* t1[0]*N[2][2]+N[0][0]*N[1][2]*t1[2]-N[0][0]*t1[1]*N[2][2]-N[0][2]*N[1][2]*t1[0]+Math.Pow(N[0][2],2)*t1[1]) * frac;
trans[2] = -(-N[1][2]*N[0][1]*t1[0]+Math.Pow(N[0][1],2)*t1[2]+N[0][0]*N[1][2]*t1[1]-N[0][0]*N[1][1]*t1[2]-N[0][2]*N[0][1]*t1[1]+N[1][1]*N[0][2]*t1[0]) * frac;
trans[2] += - meanOutput.X + meanInput.X;
// Solve equation N = transpose(B)*t2
trans[3] = (-N[0][1]*N[1][2]*t2[2]+N[0][1]* t2[1]*N[2][2]-N[0][2]*N[1][2]*t2[1]+N[0][2]*N[1][1]*t2[2]-t2[0]*N[1][1]*N[2][2]+t2[0]*Math.Pow(N[1][2],2)) * frac;
trans[4] = (-N[0][1]*N[0][2]*t2[2]+N[0][1]* t2[0]*N[2][2]+N[0][0]*N[1][2]*t2[2]-N[0][0]*t2[1]*N[2][2]-N[0][2]*N[1][2]*t2[0]+Math.Pow(N[0][2],2)*t2[1]) * frac;
trans[5] = -(-N[1][2]*N[0][1]*t2[0]+Math.Pow(N[0][1],2)*t2[2]+N[0][0]*N[1][2]*t2[1]-N[0][0]*N[1][1]*t2[2]-N[0][2]*N[0][1]*t2[1]+N[1][1]*N[0][2]*t2[0]) * frac;
trans[5] += - meanOutput.Y + meanInput.Y;
//Restore values
for (int i = 0; i < inputs.Count; i++)
{
inputs[i].X += meanInput.X;
inputs[i].Y += meanInput.Y;
outputs[i].X += meanOutput.X;
outputs[i].Y += meanOutput.Y;
}
//Calculate s0
double s0=0;
for (int i = 0; i < inputs.Count; i++)
{
double x = inputs[i].X * trans[0] + inputs[i].Y * trans[1] + trans[2];
double y = inputs[i].X * trans[3] + inputs[i].Y * trans[4] + trans[5];
s0 += Math.Pow(x-outputs[i].X,2) + Math.Pow(y-outputs[i].Y,2);
}
trans[6] = Math.Sqrt(s0) / (inputs.Count);
return trans;
}
public static SharpMap.Geometries.LinearRing CreateEllipse(SharpMap.Geometries.Point center,
System.Drawing.SizeF size,
int segmentsPerQuadrant)
{
const double piHalf = System.Math.PI * 0.5d;
var step = piHalf / segmentsPerQuadrant;
var pts = new SharpMap.Geometries.Point[4 * segmentsPerQuadrant + 1];
var angle = 0d;
for (var i = 0; i < 4 * segmentsPerQuadrant; i++)
{
pts[i] = new SharpMap.Geometries.Point(center.X + System.Math.Cos(angle) * size.Width,
center.Y + System.Math.Sin(angle) * size.Height);
angle += step;
}
pts[pts.Length - 1] = pts[0];
return new SharpMap.Geometries.LinearRing(pts);
}
internal void SetElementToLaunch(string layerName, string IDVehicle)
{
if (layerName != "" && IDVehicle != "")
{
TransponderToSetInformation = ((Layers_[layerName] as SharpMap.Layers.VectorLayer).DataSource as SharpMap.Data.Providers.MemoryDataProviderBase).GetTransponderByVehicleID(IDVehicle);
SharpMap.Geometries.Geometry geometry = ((Layers_[layerName] as SharpMap.Layers.VectorLayer).DataSource as SharpMap.Data.Providers.MemoryDataProviderBase).GetGeometryByVehicleID(IDVehicle);
CoordinateToLaunch = geometry == null ? null : geometry.GetBoundingBox().GetCentroid();
return;
}
CoordinateToLaunch = null;
TransponderToSetInformation = "";
}
private void GetBounds(SharpMap.Geometries.Point p1, SharpMap.Geometries.Point p2, out SharpMap.Geometries.Point lowerLeft, out SharpMap.Geometries.Point upperRight)
{
lowerLeft = new SharpMap.Geometries.Point(Math.Min(p1.X, p2.X), Math.Min(p1.Y, p2.Y));
upperRight = new SharpMap.Geometries.Point(Math.Max(p1.X, p2.X), Math.Max(p1.Y, p2.Y));
System.Diagnostics.Debug.WriteLine("p1: " + p1);
System.Diagnostics.Debug.WriteLine("p2: " + p2);
System.Diagnostics.Debug.WriteLine("lowerLeft: " + lowerLeft);
System.Diagnostics.Debug.WriteLine("upperRight: " + upperRight);
}
/// <summary>
/// Returns the geometry corresponding to the Object ID
/// </summary>
/// <param name="oid">Object ID</param>
/// <returns>geometry</returns>
public SharpMap.Geometries.Geometry GetGeometryByID(uint oid)
{
SharpMap.Geometries.Geometry geom = null;
using (PgConnection conn = new PgConnection(_ConnectionString))
{
String strSql = String.Format("SELECT AsBinary({0}) As Geom FROM {1} WHERE {2} = '{3}'",
this.GeometryColumn,
this.Table,
this.ObjectIdColumn,
oid);
conn.Open();
using (PgCommand command = new PgCommand(strSql, conn))
{
using (PgDataReader dr = command.ExecuteReader())
{
while (dr.Read())
{
object obj = dr[0];
if (typeof(PgPoint) == obj.GetType())
geom = new SharpMap.Geometries.Point(((PgPoint)obj).X, ((PgPoint)obj).Y);
else if (obj != DBNull.Value)
geom = SharpMap.Converters.WellKnownBinary.GeometryFromWKB.Parse((byte[])dr[0]);
}
}
}
conn.Close();
}
return geom;
}
private static void SharpMapPointToSqlGeometry(SqlGeometryBuilder geomBuilder, SMPoint point)
{
geomBuilder.BeginGeometry(OpenGisGeometryType.Point);
geomBuilder.BeginFigure(point.X, point.Y);
geomBuilder.EndFigure();
geomBuilder.EndGeometry();
}
/// <summary>
/// Reads and parses the geometry with ID 'oid' from the ShapeFile
/// </summary>
/// <remarks><see cref="FilterDelegate">Filtering</see> is not applied to this method</remarks>
/// <param name="oid">Object ID</param>
/// <returns>geometry</returns>
private SharpMap.Geometries.Geometry ReadGeometry(uint oid)
{
brShapeFile.BaseStream.Seek(GetShapeIndex(oid) + 8, 0); //Skip record number and content length
ShapeType type = (ShapeType)brShapeFile.ReadInt32(); //Shape type
if (type == ShapeType.Null)
return null;
if (_ShapeType == ShapeType.Point || _ShapeType==ShapeType.PointM || _ShapeType==ShapeType.PointZ)
{
SharpMap.Geometries.Point tempFeature = new SharpMap.Geometries.Point();
return new SharpMap.Geometries.Point(brShapeFile.ReadDouble(), brShapeFile.ReadDouble());
}
else if (_ShapeType == ShapeType.Multipoint || _ShapeType == ShapeType.MultiPointM || _ShapeType == ShapeType.MultiPointZ)
{
brShapeFile.BaseStream.Seek(32 + brShapeFile.BaseStream.Position, 0); //skip min/max box
SharpMap.Geometries.MultiPoint feature = new SharpMap.Geometries.MultiPoint();
int nPoints = brShapeFile.ReadInt32(); // get the number of points
if (nPoints == 0)
return null;
for (int i = 0; i < nPoints; i++)
feature.Points.Add(new SharpMap.Geometries.Point(brShapeFile.ReadDouble(), brShapeFile.ReadDouble()));
return feature;
}
else if ( _ShapeType == ShapeType.PolyLine || _ShapeType == ShapeType.Polygon ||
_ShapeType == ShapeType.PolyLineM || _ShapeType == ShapeType.PolygonM ||
_ShapeType == ShapeType.PolyLineZ || _ShapeType == ShapeType.PolygonZ)
{
brShapeFile.BaseStream.Seek(32 + brShapeFile.BaseStream.Position, 0); //skip min/max box
int nParts = brShapeFile.ReadInt32(); // get number of parts (segments)
if (nParts == 0)
return null;
int nPoints = brShapeFile.ReadInt32(); // get number of points
int[] segments = new int[nParts + 1];
//Read in the segment indexes
for (int b = 0; b < nParts; b++)
segments[b] = brShapeFile.ReadInt32();
//add end point
segments[nParts] = nPoints;
if ((int)_ShapeType%10 == 3)
{
SharpMap.Geometries.MultiLineString mline = new SharpMap.Geometries.MultiLineString();
for (int LineID = 0; LineID < nParts; LineID++)
{
SharpMap.Geometries.LineString line = new SharpMap.Geometries.LineString();
for (int i = segments[LineID]; i < segments[LineID + 1]; i++)
line.Vertices.Add(new SharpMap.Geometries.Point(brShapeFile.ReadDouble(), brShapeFile.ReadDouble()));
mline.LineStrings.Add(line);
}
if (mline.LineStrings.Count == 1)
return mline[0];
return mline;
}
else //(_ShapeType == ShapeType.Polygon etc...)
{
//First read all the rings
List<SharpMap.Geometries.LinearRing> rings = new List<SharpMap.Geometries.LinearRing>();
for (int RingID = 0; RingID < nParts; RingID++)
{
SharpMap.Geometries.LinearRing ring = new SharpMap.Geometries.LinearRing();
for (int i = segments[RingID]; i < segments[RingID + 1]; i++)
ring.Vertices.Add(new SharpMap.Geometries.Point(brShapeFile.ReadDouble(), brShapeFile.ReadDouble()));
rings.Add(ring);
}
bool[] IsCounterClockWise = new bool[rings.Count];
int PolygonCount = 0;
for (int i = 0; i < rings.Count;i++)
{
IsCounterClockWise[i] = rings[i].IsCCW();
if (!IsCounterClockWise[i])
PolygonCount++;
}
if (PolygonCount == 1) //We only have one polygon
{
SharpMap.Geometries.Polygon poly = new SharpMap.Geometries.Polygon();
poly.ExteriorRing = rings[0];
if (rings.Count > 1)
for (int i = 1; i < rings.Count; i++)
poly.InteriorRings.Add(rings[i]);
return poly;
}
else
{
SharpMap.Geometries.MultiPolygon mpoly = new SharpMap.Geometries.MultiPolygon();
SharpMap.Geometries.Polygon poly = new SharpMap.Geometries.Polygon();
poly.ExteriorRing = rings[0];
for (int i = 1; i < rings.Count;i++)
{
if (!IsCounterClockWise[i])
{
mpoly.Polygons.Add(poly);
poly = new SharpMap.Geometries.Polygon(rings[i]);
}
else
poly.InteriorRings.Add(rings[i]);
}
mpoly.Polygons.Add(poly);
return mpoly;
}
}
}
else
throw (new ApplicationException("Shapefile type " + _ShapeType.ToString() + " not supported"));
}
public static SharpMap.Geometries.LinearRing CreateRectangle(SharpMap.Geometries.Point center, System.Drawing.SizeF size)
{
var wh = new System.Drawing.SizeF(size.Width * 0.5f, size.Height * 0.5f);
var lt = new SharpMap.Geometries.Point(center.X - wh.Width, center.Y + wh.Height);
var rb = new SharpMap.Geometries.Point(center.X + wh.Width, center.Y - wh.Height);
return CreateRectangle(lt, rb);
}
private static void GetBounds(GeoPoint p1, GeoPoint p2,
out GeoPoint lowerLeft, out GeoPoint upperRight)
{
lowerLeft = new GeoPoint(Math.Min(p1.X, p2.X), Math.Min(p1.Y, p2.Y));
upperRight = new GeoPoint(Math.Max(p1.X, p2.X), Math.Max(p1.Y, p2.Y));
Debug.WriteLine("p1: " + p1);
Debug.WriteLine("p2: " + p2);
Debug.WriteLine("lowerLeft: " + lowerLeft);
Debug.WriteLine("upperRight: " + upperRight);
}
/// <summary>
/// Calculates the four helmert transformation parameters {a,b,c,d} and the sum of the squares of the residuals (s0)
/// </summary>
/// <remarks>
/// <para>
/// a,b defines scale vector 1 of coordinate system, d,e scale vector 2.
/// c,f defines offset.
/// </para>
/// <para>
/// Converting from input (X,Y) to output coordinate system (X',Y') is done by:
/// X' = a*X + b*Y + c, Y' = -b*X + a*Y + d
/// </para>
/// <para>This is a transformation initially based on the affine transformation but slightly simpler.</para>
/// </remarks>
/// <returns>Array with the four transformation parameters, and sum of squared residuals: a,b,c,d,s0</returns>
public double[] GetHelmertTransformation()
{
if (inputs.Count < 2)
throw(new System.Exception("At least 2 measurements required to calculate helmert transformation"));
//double precision isn't always enough. Lets subtract some mean values and add them later again:
//Find approximate center values:
SharpMap.Geometries.Point meanInput = new SharpMap.Geometries.Point(0, 0);
SharpMap.Geometries.Point meanOutput = new SharpMap.Geometries.Point(0, 0);
for (int i = 0; i < inputs.Count; i++)
{
meanInput.X += inputs[i].X;
meanInput.Y += inputs[i].Y;
meanOutput.X += outputs[i].X;
meanOutput.Y += outputs[i].Y;
}
meanInput.X = Math.Round(meanInput.X / inputs.Count);
meanInput.Y = Math.Round(meanInput.Y / inputs.Count);
meanOutput.X = Math.Round(meanOutput.X / inputs.Count);
meanOutput.Y = Math.Round(meanOutput.Y / inputs.Count);
double b00=0;
double b02=0;
double b03=0;
double[] t = new double[4];
for (int i = 0; i < inputs.Count; i++)
{
//Subtract mean values
inputs[i].X -= meanInput.X;
inputs[i].Y -= meanInput.Y;
outputs[i].X -= meanOutput.X;
outputs[i].Y -= meanOutput.Y;
//Calculate summed values
b00 += Math.Pow(inputs[i].X,2) + Math.Pow(inputs[i].Y,2);
b02 -= inputs[i].X;
b03 -= inputs[i].Y;
t[0] += -(inputs[i].X*outputs[i].X) - (inputs[i].Y*outputs[i].Y);
t[1] += -(inputs[i].Y*outputs[i].X) + (inputs[i].X*outputs[i].Y);
t[2] += outputs[i].X;
t[3] += outputs[i].Y;
}
double frac = 1 / (-inputs.Count * b00 + Math.Pow(b02, 2) + Math.Pow(b03, 2));
double[] result = new double[5];
result[0] = (-inputs.Count * t[0] + b02 * t[2] + b03 * t[3]) * frac;
result[1] = (-inputs.Count * t[1] + b03 * t[2] - b02 * t[3]) * frac;
result[2] = (b02*t[0]+b03*t[1]-t[2]*b00) * frac + meanOutput.X;
result[3] = (b03*t[0]-b02*t[1]-t[3]*b00) * frac + meanOutput.Y;
//Restore values
for (int i = 0; i < inputs.Count; i++)
{
inputs[i].X += meanInput.X;
inputs[i].Y += meanInput.Y;
outputs[i].X += meanOutput.X;
outputs[i].Y += meanOutput.Y;
}
//Calculate s0
double s0=0;
for (int i = 0; i < inputs.Count; i++)
{
double x = inputs[i].X * result[0] + inputs[i].Y * result[1] + result[2];
double y = -inputs[i].X * result[1] + inputs[i].Y * result[0] + result[3];
s0 += Math.Pow(x-outputs[i].X,2) + Math.Pow(y-outputs[i].Y,2);
}
result[4] = Math.Sqrt(s0) / (inputs.Count);
return result;
}
