////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 21JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* draw a map object.
* @param mapObject the map object to be drawing.
* @param drawBoundary the drawing boundry.
* @param zoomLevel the current zoomLevel.
*/
public override void DrawMapObject(MapObject mapObject, GeoLatLngBounds drawBoundary,
int zoomLevel)
{
GeoLatLng drawPt = new GeoLatLng();
_sutherlandHodgman = new SutherlandHodgman(drawBoundary);
_mapZoomLevel = zoomLevel;
_mapCenterPt.X = drawBoundary.GetCenterX();
_mapCenterPt.Y = drawBoundary.GetCenterY();
bool pointFound = false;
switch (mapObject.GetMapObjectType())
{
case MapObject.NONE:
break;
case MapObject.POINT:
{
MapPoint mapPoint = (MapPoint)mapObject;
DrawPoint(mapPoint);
drawPt.X = mapPoint.Point.X;
drawPt.Y = mapPoint.Point.Y;
pointFound = true;
}
break;
case MapObject.MULTIPOINT:
{
MapMultiPoint mapMultiPoint = (MapMultiPoint)mapObject;
for (int i = 0; i < mapMultiPoint.Points.Length; i++)
{
MapPoint mapPoint = new MapPoint
{
SymbolType = mapMultiPoint.SymbolType,
Point = new GeoLatLng(mapMultiPoint.Points[i])
};
DrawPoint(mapPoint);
}
for (int i = 0; i < mapMultiPoint.Points.Length; i++)
{
if (drawBoundary.Contains(mapMultiPoint.Points[i]))
{
drawPt.X = mapMultiPoint.Points[i].X;
drawPt.Y = mapMultiPoint.Points[i].Y;
pointFound = true;
break;
}
}
}
break;
case MapObject.PLINE:
{
MapPline mapPline = (MapPline)mapObject;
DrawPline(mapPline.PenStyle, mapPline.Pline);
for (int i = 0; i < mapPline.Pline.GetVertexCount(); i++)
{
if (drawBoundary.Contains(mapPline.Pline.GetVertex(i)))
{
drawPt.X = mapPline.Pline.GetVertex(i).X;
drawPt.Y = mapPline.Pline.GetVertex(i).Y;
pointFound = true;
break;
}
}
}
break;
case MapObject.MULTIPLINE:
{
MapMultiPline mapMultiPline = (MapMultiPline)mapObject;
for (int i = 0; i < mapMultiPline.Plines.Length; i++)
{
DrawPline(mapMultiPline.PenStyle,
mapMultiPline.Plines[i]);
for (int j = 0; j < mapMultiPline.Plines[i].GetVertexCount(); j++)
{
if (drawBoundary.Contains(mapMultiPline.Plines[i].GetVertex(j)))
{
drawPt.X = mapMultiPline.Plines[i].GetVertex(j).X;
drawPt.Y = mapMultiPline.Plines[i].GetVertex(j).Y;
pointFound = true;
break;
}
}
}
}
break;
case MapObject.REGION:
{
MapRegion mapRegion = (MapRegion)mapObject;
DrawRegion(mapRegion.PenStyle, mapRegion.BrushStyle,
mapRegion.Region);
drawPt.X = mapRegion.CenterPt.X;
drawPt.Y = mapRegion.CenterPt.Y;
pointFound = true;
}
break;
case MapObject.MULTIREGION:
{
MapMultiRegion mapMultiRegion = (MapMultiRegion)mapObject;
for (int i = 0; i < mapMultiRegion.Regions.Length; i++)
{
DrawRegion(mapMultiRegion.PenStyle,
mapMultiRegion.BrushStyle,
mapMultiRegion.Regions[i]);
}
drawPt.X = mapMultiRegion.CenterPt.X;
drawPt.Y = mapMultiRegion.CenterPt.Y;
pointFound = true;
}
break;
case MapObject.COLLECTION:
{
MapCollection mapCollection = (MapCollection)mapObject;
if (mapCollection.MultiRegion != null)
{
MapMultiRegion mapMultiRegion = mapCollection.MultiRegion;
for (int i = 0; i < mapMultiRegion.Regions.Length; i++)
{
DrawRegion(mapMultiRegion.PenStyle,
mapMultiRegion.BrushStyle,
mapMultiRegion.Regions[i]);
}
}
if (mapCollection.MultiPline != null)
{
MapMultiPline mapMultiPline = mapCollection.MultiPline;
for (int i = 0; i < mapMultiPline.Plines.Length; i++)
{
DrawPline(mapMultiPline.PenStyle,
mapMultiPline.Plines[i]);
}
}
if (mapCollection.MultiPoint != null)
{
MapMultiPoint mapMultiPoint = mapCollection.MultiPoint;
for (int i = 0; i < mapMultiPoint.Points.Length; i++)
{
MapPoint mapPoint = new MapPoint
{
SymbolType = mapMultiPoint.SymbolType,
Point = new GeoLatLng(mapMultiPoint.Points[i])
};
DrawPoint(mapPoint);
}
}
pointFound = true;
drawPt.X = mapCollection.Bounds.X + mapCollection.Bounds.Width / 2;
drawPt.Y = mapCollection.Bounds.Y + mapCollection.Bounds.Height / 2;
}
break;
case MapObject.TEXT:
{
MapText mapText = (MapText)mapObject;
drawPt.X = mapText.Point.X;
drawPt.Y = mapText.Point.Y;
pointFound = true;
}
break;
}
if (!mapObject.Name.ToLower().Equals("unknown") && pointFound)
{
MapText mapName = new MapText {
Font = _font
};
mapName.SetForeColor(_fontColor);
mapName.TextString = mapObject.Name;
GeoPoint screenPt = FromLatLngToMapPixel(drawPt);
mapName.Point.X = screenPt.X;
mapName.Point.Y = screenPt.Y;
mapName.Bounds.X = mapName.Point.X;
mapName.Bounds.Y = mapName.Point.Y;
if (_font != null)
{
mapName.Bounds.Height = IMAGE_PATERN_WIDTH;
mapName.Bounds.Width = _font.CharsWidth(mapObject.Name.ToCharArray(), 0,
mapObject.Name.ToCharArray().Length);
}
AddMapName(mapName);
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 21JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* draw a map object.
* @param mapObject the map object to be drawing.
* @param drawBoundary the drawing boundry.
* @param zoomLevel the current zoomLevel.
*/
public override void DrawMapObject(MapObject mapObject, GeoLatLngBounds drawBoundary,
int zoomLevel)
{
GeoLatLng drawPt = new GeoLatLng();
_sutherlandHodgman = new SutherlandHodgman(drawBoundary);
_mapZoomLevel = zoomLevel;
_mapCenterPt.X = drawBoundary.GetCenterX();
_mapCenterPt.Y = drawBoundary.GetCenterY();
bool pointFound = false;
Point[] plinePoints = null;
switch (mapObject.GetMapObjectType())
{
case MapObject.NONE:
break;
case MapObject.POINT:
{
MapPoint mapPoint = (MapPoint)mapObject;
DrawPoint(mapPoint);
drawPt.X = mapPoint.Point.X;
drawPt.Y = mapPoint.Point.Y;
pointFound = true;
}
break;
case MapObject.MULTIPOINT:
{
MapMultiPoint mapMultiPoint = (MapMultiPoint)mapObject;
for (int i = 0; i < mapMultiPoint.Points.Length; i++)
{
MapPoint mapPoint = new MapPoint
{
SymbolType = mapMultiPoint.SymbolType,
Point = new GeoLatLng(mapMultiPoint.Points[i])
};
DrawPoint(mapPoint);
}
for (int i = 0; i < mapMultiPoint.Points.Length; i++)
{
if (drawBoundary.Contains(mapMultiPoint.Points[i]))
{
drawPt.X = mapMultiPoint.Points[i].X;
drawPt.Y = mapMultiPoint.Points[i].Y;
pointFound = true;
break;
}
}
}
break;
case MapObject.PLINE:
{
MapPline mapPline = (MapPline)mapObject;
plinePoints = DrawPline(mapPline.PenStyle, mapPline.Pline);
for (int i = 0; i < mapPline.Pline.GetVertexCount(); i++)
{
if (drawBoundary.Contains(mapPline.Pline.GetVertex(i)))
{
drawPt.X = mapPline.Pline.GetVertex(i).X;
drawPt.Y = mapPline.Pline.GetVertex(i).Y;
pointFound = true;
break;
}
}
}
break;
case MapObject.MULTIPLINE:
{
MapMultiPline mapMultiPline = (MapMultiPline)mapObject;
for (int i = 0; i < mapMultiPline.Plines.Length; i++)
{
DrawPline(mapMultiPline.PenStyle,
mapMultiPline.Plines[i]);
for (int j = 0; j < mapMultiPline.Plines[i].GetVertexCount(); j++)
{
if (drawBoundary.Contains(mapMultiPline.Plines[i].GetVertex(j)))
{
drawPt.X = mapMultiPline.Plines[i].GetVertex(j).X;
drawPt.Y = mapMultiPline.Plines[i].GetVertex(j).Y;
pointFound = true;
break;
}
}
}
}
break;
case MapObject.REGION:
{
MapRegion mapRegion = (MapRegion)mapObject;
DrawRegion(mapRegion.PenStyle, mapRegion.BrushStyle,
mapRegion.Region);
drawPt.X = mapRegion.CenterPt.X;
drawPt.Y = mapRegion.CenterPt.Y;
pointFound = true;
}
break;
case MapObject.MULTIREGION:
{
MapMultiRegion mapMultiRegion = (MapMultiRegion)mapObject;
for (int i = 0; i < mapMultiRegion.Regions.Length; i++)
{
DrawRegion(mapMultiRegion.PenStyle,
mapMultiRegion.BrushStyle,
mapMultiRegion.Regions[i]);
}
drawPt.X = mapMultiRegion.CenterPt.X;
drawPt.Y = mapMultiRegion.CenterPt.Y;
pointFound = true;
}
break;
case MapObject.COLLECTION:
{
MapCollection mapCollection = (MapCollection)mapObject;
if (mapCollection.MultiRegion != null)
{
MapMultiRegion mapMultiRegion = mapCollection.MultiRegion;
for (int i = 0; i < mapMultiRegion.Regions.Length; i++)
{
DrawRegion(mapMultiRegion.PenStyle,
mapMultiRegion.BrushStyle,
mapMultiRegion.Regions[i]);
}
}
if (mapCollection.MultiPline != null)
{
MapMultiPline mapMultiPline = mapCollection.MultiPline;
for (int i = 0; i < mapMultiPline.Plines.Length; i++)
{
DrawPline(mapMultiPline.PenStyle,
mapMultiPline.Plines[i]);
}
}
if (mapCollection.MultiPoint != null)
{
MapMultiPoint mapMultiPoint = mapCollection.MultiPoint;
for (int i = 0; i < mapMultiPoint.Points.Length; i++)
{
MapPoint mapPoint = new MapPoint
{
SymbolType = mapMultiPoint.SymbolType,
Point = new GeoLatLng(mapMultiPoint.Points[i])
};
DrawPoint(mapPoint);
}
}
pointFound = true;
drawPt.X = mapCollection.Bounds.X + mapCollection.Bounds.Width / 2;
drawPt.Y = mapCollection.Bounds.Y + mapCollection.Bounds.Height / 2;
}
break;
case MapObject.TEXT:
{
MapText mapText = (MapText)mapObject;
drawPt.X = mapText.Point.X;
drawPt.Y = mapText.Point.Y;
pointFound = true;
}
break;
}
if (!(mapObject.Name.ToLower().Equals("unknown") || mapObject.Name.Length == 0) && pointFound)
{
MapText mapName = new MapText {
Font = _font
};
mapName.SetForeColor(_fontColor);
mapName.TextString = mapObject.Name;
GeoPoint screenPt = FromLatLngToMapPixel(drawPt);
mapName.Point.X = screenPt.X;
mapName.Point.Y = screenPt.Y;
mapName.Bounds.X = mapName.Point.X;
mapName.Bounds.Y = mapName.Point.Y;
Font font = null;
if (_font != null)
{
font = (Font)_font.GetNativeFont();
SizeF sizeF = SharedGraphics2D.Graphics.MeasureString(mapName.TextString, font);
mapName.Bounds.Height = sizeF.Height;
mapName.Bounds.Width = sizeF.Width;
}
TextPosInfo textPosInfo = new TextPosInfo();
textPosInfo._mapText = mapName;
if (mapObject.GetMapObjectType() == MapObject.PLINE)
{
if (plinePoints != null)
{
GraphicsPath graphicsPath = new GraphicsPath();
graphicsPath.AddLines(plinePoints);
RectangleF [] rectangleF;
double angle = GetAngle(plinePoints[0], plinePoints[plinePoints.Length - 1]);
if (angle < 180)
{
graphicsPath.Reverse();
}
angle = GetAngle(plinePoints[0], plinePoints[plinePoints.Length - 1]);
float rotateAngle = GetRotateAngle(angle);
rectangleF = SharedGraphics2D.Graphics.MeasureString(mapName.TextString, font,
new SolidBrush(
Color.FromArgb(_fontColor)),
TextPathAlign.Center,
TextPathPosition.CenterPath, 100, rotateAngle,
graphicsPath);
textPosInfo._graphicsPath = graphicsPath;
textPosInfo._rectangles = rectangleF;
if (rectangleF.Length == mapName.TextString.Length)
{
//RectangleF[] rectangleFs = new RectangleF[rectangleF.Length];
//Array.Copy(rectangleF, rectangleFs, rectangleF.Length);
//for (int i = 0; i < rectangleFs.Length;i++ )
//{
// for(int j=0;j<rectangleF.Length;j++)
// {
// if(i!=j)
// {
// if(rectangleFs[i].IntersectsWith(rectangleF[j]))
// {
// return;
// }
// }
// }
//}
AddMapName(textPosInfo);
}
}
}
else
{
textPosInfo._graphicsPath = null;
textPosInfo._rectangles = new[] { new RectangleF((float)textPosInfo._mapText.Bounds.X, (float)textPosInfo._mapText.Bounds.Y,
(float)textPosInfo._mapText.Bounds.Width,
(float)textPosInfo._mapText.Bounds.Height) };
AddMapName(textPosInfo);
}
}
}