public void InitMapView(Rectangle rect, MG_MapExtent me)
{// layerCount>0 => MapExtent!=Empty => MapView!=null
if (!this.MapExtent.Empty())
{
this.MapView = new MG_MapView(rect, me);
}
}
public static void RenderGeometry(Graphics g, Pen pen, Brush brush, MG_MapView mapview, MG_Geometry geometry)
{
switch (geometry.Type)
{
case MG_GeometryType.NONE:
break;
case MG_GeometryType.POINT:
MG_MapRender.RenderPoint(g, brush, MG_Constant.PointRadius, mapview, geometry as MG_Point);
break;
case MG_GeometryType.MULTIPOINT:
MG_MapRender.RenderMultiPoint(g, brush, MG_Constant.PointRadius, mapview, geometry as MG_MultiPoint);
break;
case MG_GeometryType.LINESTRING:
MG_MapRender.RenderLineString(g, pen, mapview, geometry as MG_LineString);
break;
case MG_GeometryType.MULTILINESTRING:
MG_MapRender.RenderMultiLineString(g, pen, mapview, geometry as MG_MultiLineString);
break;
case MG_GeometryType.POLYGON:
MG_MapRender.RenderPolygon(g, brush, mapview, geometry as MG_Polygon);
//MG_MapRender.RenderPolygon(g, pen, mapview, geometry as MG_Polygon);
break;
case MG_GeometryType.MULTIPOLYGON:
MG_MapRender.RenderMultiPolygon(g, brush, mapview, geometry as MG_MultiPolygon);
//MG_MapRender.RenderMultiPolygon(g, pen, mapview, geometry as MG_MultiPolygon);
break;
}
}
public static void RenderMap(MG_Map map, MG_MapView mapview, Graphics g)
{
for (int i = 0; i < map.GetLayerCount(); i++)
{
RenderLayer(map.GetLayer(i), mapview, g);
}
}
public static void RenderGeometrys(Graphics g, Pen pen, Brush brush, MG_MapView mapview, List<MG_Geometry> geometrys)
{
for (int i = 0; i < geometrys.Count; i++)
{
RenderGeometry(g, pen, brush, mapview, geometrys[i]);
}
}
public static void RenderFeature(MG_Feature f, MG_MapView mapview, Graphics g)
{
//int realValue = GetRealValue(f.Symbol.LineWidth, mapview);
Pen pen = new Pen(f.Symbol.OutlineColor, f.Symbol.LineWidth);
SolidBrush brush = new SolidBrush(f.Symbol.FillColor);
RenderGeometry(g, pen, brush, mapview, f.Geometry);
}
public static void RenderLayer(MG_Layer layer, MG_MapView mapview, Graphics g)
{
if (layer.GetVisible())
{
for (int i = 0; i < layer.GetFeatureCount(); i++)
{
RenderFeature(layer.GetFeature(i),mapview, g);
}
}
}
public void AddZoomToHistory(MG_MapView mapview)
{// updateMapView
// zoomin/zoomout/pan/left/right/up/down
if (mapview != null)
{
this.CurrentZoomIndex++;
MG_ZoomRecord zoom = new MG_ZoomRecord(mapview.GetScale(), mapview.GetCenterX(), mapview.GetCenterY());
this.ZoomHistory.Add(zoom);
}
}
public MG_Map()
{
mapCount++;
this.MapName = "Map_" + mapCount.ToString();
this.MapPath = null;
this.MapExtent = new MG_MapExtent();
this.LayerSet = new MG_LayerSet();
this.ZoomHistory = new MG_ZoomHistory();
this.CurrentZoomIndex = -1;
this.MapView = null;
}
public void AddZoomToHistory(MG_MapView mapview)
{
// updateMapView
// zoomin/zoomout/pan/left/right/up/down
if (mapview != null)
{
this.CurrentZoomIndex++;
MG_ZoomRecord zoom = new MG_ZoomRecord(mapview.GetScale(), mapview.GetCenterX(), mapview.GetCenterY());
this.ZoomHistory.Add(zoom);
}
}
public MG_Map()
{
mapCount++;
this.MapName = "Map_" + mapCount.ToString();
this.MapPath = null;
this.MapExtent = new MG_MapExtent();
this.LayerSet = new MG_LayerSet();
this.ZoomHistory = new MG_ZoomHistory();
this.CurrentZoomIndex = -1;
this.MapView = null;
}
public static int GetRealValue(int value, MG_MapView mapview)
{
int realValue = value;
if (mapview != null)
{
realValue = (int)mapview.GetValue(value);
if (realValue <= 0)
{
realValue = 1;
}
}
return realValue;
}
public static void RenderLineString(Graphics g, Pen pen, MG_MapView mapview, MG_LineString lineString)
{
int count = lineString.Count();
if (count < 2)
return;
Point[] points = new Point[count];
for (int i = 0; i < count; i++)
{
MG_Point mp = lineString.GetAt(i);
points[i] = AsPoint(mp, mapview);
}
DrawLineString(g, pen, points);
}
public MG_BaseTool(MG_ToolType type, MG_Layer layer, MG_MapView mapview)
{
this.ToolType = type;
this.Layer = layer;
this.MapView = mapview;
if (layer!=null)
{// pan tool: layer==null
this.Feature = new MG_Feature(this.Layer.GetFieldSet());
}
// empty point
this.FromPoint = Point.Empty;
this.ToPoint = Point.Empty;
this.Point3 = Point.Empty;
this.SelectRect = Rectangle.Empty;
}
public MG_ToolPan(MG_Map map, MG_MapView mapview)
: base(MG_ToolType.Tool_Pan, null, mapview)
{
this.CurrentMap = map;
}
public MG_ToolDrawPolygon(MG_Layer layer, MG_MapView mapview)
: base(MG_ToolType.Tool_DrawPolygon, layer, mapview)
{
this.LineString = new MG_LineString();
this.Polygon = new MG_Polygon();
}
public static void RenderPoint(Graphics g, Brush brush, int radius, MG_MapView mapview, MG_Point point)
{
//int realValue = GetRealValue(radius, mapview);
//if (realValue < MG_Constant.PointRadius)
//{
// realValue = MG_Constant.PointRadius;
//}
Point sp = AsPoint(point, mapview);
FillPoint(g, brush, sp, radius);
}
public static void RenderMultiPolygon(Graphics g, Pen pen, MG_MapView mapview, MG_MultiPolygon multiPolygon)
{
for (int i = 0; i < multiPolygon.Count(); i++)
{
RenderPolygon(g, pen, mapview, multiPolygon.GetAt(i));
}
}
public static void RenderPolygon(Graphics g, Pen pen, MG_MapView mapview, MG_Polygon polygon)
{
int countLineString = polygon.Count();
for (int i = 0; i < countLineString; i++)
{
MG_LineString lineString = polygon.GetAt(i);
int countPoint = lineString.Count();
if (countPoint < 3)
return;
Point[] points = new Point[countPoint];
for (int j = 0; j < countPoint; j++)
{
MG_Point mp = lineString.GetAt(j);
points[j] = AsPoint(mp, mapview);
}
//FillPolygon(g, brush, points);
//Pen pen = new Pen(Color.Red, 1);
DrawPolygon(g, pen, points);
}
}
protected bool IsStart = true; // start end
#endregion Fields
#region Constructors
public MG_ToolDrawRectangle(MG_Layer layer, MG_MapView mapview)
: base(MG_ToolType.Tool_DrawRectangle, layer, mapview)
{
}
public static MG_Point ToPoint(Point point, MG_MapView mapview)
{
MG_Point mp;
if (mapview != null)
{
mp = mapview.Screent2Map(point);
}
else
{
mp = new MG_Point(point.X, point.Y);
}
return mp;
}
public void InitMapView(Rectangle rect, MG_MapExtent me)
{
// layerCount>0 => MapExtent!=Empty => MapView!=null
if (!this.MapExtent.Empty())
{
this.MapView = new MG_MapView(rect, me);
}
}
public static void RenderMultiPoint(Graphics g, Brush brush, int radius, MG_MapView mapview, MG_MultiPoint multiPoint)
{
for (int i = 0; i < multiPoint.Count(); i++)
{
RenderPoint(g, brush, radius, mapview, multiPoint.GetAt(i));
}
}
private static Point AsPoint(MG_Point point, MG_MapView mapview)
{
Point sp;
if (mapview != null)
{
sp = mapview.Map2Screen(point);
}
else
{
sp = new Point((int)point.x, (int)point.y);
}
return sp;
}
public MG_ToolDrawPoint(MG_Layer layer, MG_MapView mapview)
: base(MG_ToolType.Tool_DrawPoint, layer, mapview)
{
this.MapPoint = new MG_Point();
}
public MG_ToolDrawLineString(MG_Layer layer, MG_MapView mapview)
: base(MG_ToolType.Tool_DrawLineString, layer, mapview)
{
this.LineString = new MG_LineString();
}
public static void RenderMultiLineString(Graphics g, Pen pen, MG_MapView mapview, MG_MultiLineString multiLineString)
{
for (int i = 0; i < multiLineString.Count(); i++)
{
RenderLineString(g, pen, mapview, multiLineString.GetAt(i));
}
}
