private void DrawTerminalSegments(System.Drawing.Point prevPoint, System.Drawing.Point curPoint)
{
if (m_Points.Count == 2)
{
var graph = MapImage.CreateGraphics();
graph.DrawLine(new Pen(Color.Black), m_Points[0], m_Points[1]);
}
if (curPoint != System.Drawing.Point.Empty)
{
ControlPaint.DrawReversibleLine(MapImage.PointToScreen(curPoint), MapImage.PointToScreen(m_Points[0]),
Color.Black);
if (m_Points.Count > 1)
{
ControlPaint.DrawReversibleLine(MapImage.PointToScreen(curPoint),
MapImage.PointToScreen(m_Points[m_Points.Count - 1]), Color.Black);
}
}
if (prevPoint != System.Drawing.Point.Empty)
{
ControlPaint.DrawReversibleLine(MapImage.PointToScreen(prevPoint), MapImage.PointToScreen(m_Points[0]),
Color.Black);
if (m_Points.Count > 1)
{
ControlPaint.DrawReversibleLine(MapImage.PointToScreen(prevPoint),
MapImage.PointToScreen(m_Points[m_Points.Count - 1]), Color.Black);
}
}
}
void MapImage_MouseMove(Point worldPos, MouseEventArgs e)
{
if (m_ToolPhase == ToolPhase.WaitFirst)
{
return;
}
System.Drawing.Point p = e.Location;
DrawTerminalSegments(m_LastMousePosition, p);
m_LastMousePosition = p;
}
/// <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 PointF WorldtoMap(Point p, Map map)
{
//if (map.MapTransform != null && !map.MapTransform.IsIdentity)
// map.MapTransform.TransformPoints(new System.Drawing.PointF[] { p });
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>
/// 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 PointF WorldtoMap(Point p, Map map)
{
//if (map.MapTransform != null && !map.MapTransform.IsIdentity)
// map.MapTransform.TransformPoints(new System.Drawing.PointF[] { p });
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);
}
private void MapImage_MouseDown(object sender, MouseEventArgs e)
{
_panOrQueryIsPan = false;
if (_map != null)
{
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Middle) //dragging
{
_mousedrag = e.Location;
}
if (MouseDown != null)
{
MouseDown(_map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true), e);
}
}
}
void MapImage_MouseDoubleClick(object sender, MouseEventArgs e)
{
if (m_ToolPhase == ToolPhase.WaitFirst)
{
return;
}
//if (DataProvider == null) NoDataProvider();
//compleate polygon
if (m_Vertices.Count < 3)
{
return;
}
m_Vertices.Add(m_Vertices[0]);
var linearRing = new LinearRing(m_Vertices);
Geometry polygon = new Polygon(linearRing);
//polygon = GeometryTransform.TransformGeometry(polygon, CoordinateSystems.SphericalMercatorCS,
// CoordinateSystems.WGS84);
m_ToolPhase = ToolPhase.WaitFirst;
var connectionString = ConnectionManager.DefaultInstance.ConnectionString;
var connection = new SqlConnection(connectionString);
var valid = SqlExecHelper.SqlGeometryValidation(connection, polygon);
if (!valid)
{
MessageForm.Show(Resources.gis_MtIndependentPolygonBufferZone_CheckValidityMsg);
}
else
{
//show form
var frm = new PolygonBufZone();
//frm.ZoneLayer = string.Empty;
if (frm.ShowDialog() == DialogResult.OK)
{
if (m_TargetLayerGuid == Guid.Empty)
{
return;
}
var eidssUserBufZoneLayer =
(EidssUserBufZoneLayer)UserDbLayersManager.GetUserLayer(m_TargetLayerGuid);
if (eidssUserBufZoneLayer == null)
{
return;
}
var userBufZone = new EidssUserBufZoneLayer.UserBufZone
{
Geometry = polygon,
Description = frm.Description,
Name = frm.ZoneName,
//Center = new Point(0, 0)
};
eidssUserBufZoneLayer.AddNewZone(userBufZone);
}
}
MapImage.Refresh();
m_Vertices.Clear();
m_Points.Clear();
m_LastMousePosition = System.Drawing.Point.Empty;
}
private void MapImage_MouseUp(object sender, MouseEventArgs e)
{
if (_map != null)
{
if (MouseUp != null)
MouseUp(_map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true), e);
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Middle)
{
if (ActiveTool == Tools.ZoomOut)
{
double scale = 0.5;
if (!_mousedragging)
{
_map.Center = _map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true);
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
else
{
if (e.Y - _mousedrag.Y < 0) //Zoom out
scale = (float)Math.Pow(1 / (float)(_mousedrag.Y - e.Y), 0.5);
else //Zoom in
scale = 1 + (e.Y - _mousedrag.Y) * 0.1;
}
_map.Zoom *= 1 / scale;
if (MapZoomChanged != null)
MapZoomChanged(_map.Zoom);
Refresh();
}
else if (ActiveTool == Tools.ZoomIn)
{
double scale = 2;
if (!_mousedragging)
{
_map.Center = _map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true);
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
else
{
if (e.Y - _mousedrag.Y < 0) //Zoom out
scale = (float)Math.Pow(1 / (float)(_mousedrag.Y - e.Y), 0.5);
else //Zoom in
scale = 1 + (e.Y - _mousedrag.Y) * 0.1;
}
_map.Zoom *= 1 / scale;
if (MapZoomChanged != null)
MapZoomChanged(_map.Zoom);
Refresh();
}
else if (ActiveTool == Tools.Pan || (ActiveTool == Tools.PanOrQuery && _panOrQueryIsPan))
{
if (_mousedragging)
{
System.Drawing.Point pnt = new System.Drawing.Point(Width / 2 + (_mousedrag.X - e.Location.X),
Height / 2 + (_mousedrag.Y - e.Location.Y));
_map.Center = _map.ImageToWorld(pnt, true);
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
else if(_panOnClick && !_zoomOnDblClick)
{
_map.Center = _map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true);
if (MapCenterChanged != null)
MapCenterChanged(_map.Center);
}
Refresh();
}
else if (ActiveTool == Tools.Query || (ActiveTool == Tools.PanOrQuery && !_panOrQueryIsPan))
{
if (_queryLayerIndex < 0)
MessageBox.Show("No active layer to query");
else if (_queryLayerIndex < _map.Layers.Count)
QueryLayer(_map.Layers[_queryLayerIndex], new PointF(e.X, e.Y));
else if(_queryLayerIndex - Map.Layers.Count < _map.VariableLayers.Count)
QueryLayer(_map.VariableLayers[_queryLayerIndex - Map.Layers.Count], new PointF(e.X, e.Y));
else
MessageBox.Show("No active layer to query");
}
}
if (_mousedragImg != null)
{
_mousedragImg.Dispose();
_mousedragImg = null;
}
_mousedragging = false;
}
}
private void MapImage_MouseDown(object sender, MouseEventArgs e)
{
_panOrQueryIsPan = false;
if (_map != null)
{
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Middle) //dragging
_mousedrag = e.Location;
if (MouseDown != null)
MouseDown(_map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true), e);
}
}
private void MapImage_MouseUp(object sender, MouseEventArgs e)
{
if (_map != null)
{
if (MouseUp != null)
{
MouseUp(_map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true), e);
}
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Middle)
{
if (ActiveTool == Tools.ZoomOut)
{
double scale = 0.5;
if (!_mousedragging)
{
_map.Center = _map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true);
if (MapCenterChanged != null)
{
MapCenterChanged(_map.Center);
}
}
else
{
if (e.Y - _mousedrag.Y < 0) //Zoom out
{
scale = (float)Math.Pow(1 / (float)(_mousedrag.Y - e.Y), 0.5);
}
else //Zoom in
{
scale = 1 + (e.Y - _mousedrag.Y) * 0.1;
}
}
_map.Zoom *= 1 / scale;
if (MapZoomChanged != null)
{
MapZoomChanged(_map.Zoom);
}
Refresh();
}
else if (ActiveTool == Tools.ZoomIn)
{
double scale = 2;
if (!_mousedragging)
{
_map.Center = _map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true);
if (MapCenterChanged != null)
{
MapCenterChanged(_map.Center);
}
}
else
{
if (e.Y - _mousedrag.Y < 0) //Zoom out
{
scale = (float)Math.Pow(1 / (float)(_mousedrag.Y - e.Y), 0.5);
}
else //Zoom in
{
scale = 1 + (e.Y - _mousedrag.Y) * 0.1;
}
}
_map.Zoom *= 1 / scale;
if (MapZoomChanged != null)
{
MapZoomChanged(_map.Zoom);
}
Refresh();
}
else if (ActiveTool == Tools.Pan || (ActiveTool == Tools.PanOrQuery && _panOrQueryIsPan))
{
if (_mousedragging)
{
System.Drawing.Point pnt = new System.Drawing.Point(Width / 2 + (_mousedrag.X - e.Location.X),
Height / 2 + (_mousedrag.Y - e.Location.Y));
_map.Center = _map.ImageToWorld(pnt, true);
if (MapCenterChanged != null)
{
MapCenterChanged(_map.Center);
}
}
else if (_panOnClick && !_zoomOnDblClick)
{
_map.Center = _map.ImageToWorld(new System.Drawing.Point(e.X, e.Y), true);
if (MapCenterChanged != null)
{
MapCenterChanged(_map.Center);
}
}
Refresh();
}
else if (ActiveTool == Tools.Query || (ActiveTool == Tools.PanOrQuery && !_panOrQueryIsPan))
{
if (_queryLayerIndex < 0)
{
MessageBox.Show("No active layer to query");
}
else if (_queryLayerIndex < _map.Layers.Count)
{
QueryLayer(_map.Layers[_queryLayerIndex], new PointF(e.X, e.Y));
}
else if (_queryLayerIndex - Map.Layers.Count < _map.VariableLayers.Count)
{
QueryLayer(_map.VariableLayers[_queryLayerIndex - Map.Layers.Count], new PointF(e.X, e.Y));
}
else
{
MessageBox.Show("No active layer to query");
}
}
}
if (_mousedragImg != null)
{
_mousedragImg.Dispose();
_mousedragImg = null;
}
_mousedragging = false;
}
}
