public override void Draw(PaintEventArgs e, WEStyle style, string str)
{
Graphics g = e.Graphics;
foreach (var i in _Polylines)
{
//foreach(var poi in ((WEPolyline)i).Points)
//g.FillRectangle(new SolidBrush(style.FromColor), WEMapTools.FromMapPoint(poi).X - 2, WEMapTools.FromMapPoint(poi).Y - 2, 4, 4);
Pen penn = new Pen(new SolidBrush(style.FromColor), (float)style.BoundaryWidth);
switch (style.SymbolStyle)
{
case 0:
penn.DashStyle = System.Drawing.Drawing2D.DashStyle.Solid;
break;
case 1:
penn.DashStyle = System.Drawing.Drawing2D.DashStyle.Custom;
penn.DashPattern = new float[] { 5, 5 };
break;
}
for (int j = 0; j < ((WEPolyline)i).Points.Length - 1; j++)
{
g.DrawLine(penn, WEMapTools.FromMapPoint(((WEPolyline)i).Points[j]), WEMapTools.FromMapPoint(((WEPolyline)i).Points[j + 1]));
}
}
//g.DrawString(str, new Font("微软雅黑", 8), new SolidBrush(Color.Black), WEMapTools.FromMapPoint(new WEPoint(MBR.MinX + MBR.Width / 2, MBR.MinY + MBR.Height /2)));
}
public override void Draw(PaintEventArgs e, WEStyle style, string str)
{
Graphics g = e.Graphics;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
PointF tem;
foreach (var i in _Points)
{
switch (style.SymbolStyle)
{
case 1:
g.DrawEllipse(new Pen(style.FromColor), WEMapTools.FromMapPoint(i).X - (float)style.Size / 2, WEMapTools.FromMapPoint(i).Y - (float)style.Size / 2, (float)style.Size, (float)style.Size);
break;
case 2:
g.FillEllipse(new SolidBrush(style.FromColor), WEMapTools.FromMapPoint(i).X - (float)style.Size / 2, WEMapTools.FromMapPoint(i).Y - (float)style.Size / 2, (float)style.Size, (float)style.Size);
break;
case 3:
g.DrawRectangle(new Pen(style.FromColor), WEMapTools.FromMapPoint(i).X - (float)style.Size / 2, WEMapTools.FromMapPoint(i).Y - (float)style.Size / 2, (float)style.Size, (float)style.Size);
break;
case 4:
g.FillRectangle(new SolidBrush(style.FromColor), WEMapTools.FromMapPoint(i).X - (float)style.Size / 2, WEMapTools.FromMapPoint(i).Y - (float)style.Size / 2, (float)style.Size, (float)style.Size);
break;
case 5:
tem = WEMapTools.FromMapPoint(i);
g.DrawLines(new Pen(style.FromColor), new PointF[4] {
new PointF(tem.X, tem.Y - (float)style.Size * 2 / 3),
new PointF(tem.X - (float)style.Size / 2, tem.Y + (float)style.Size / 3),
new PointF(tem.X + (float)style.Size / 3, tem.Y + (float)style.Size / 3),
new PointF(tem.X, tem.Y - (float)style.Size * 2 / 3),
});
break;
case 6:
tem = WEMapTools.FromMapPoint(i);
g.FillPolygon(new SolidBrush(style.FromColor), new PointF[4] {
new PointF(tem.X, tem.Y - (float)style.Size * 2 / 3),
new PointF(tem.X - (float)style.Size / 2, tem.Y + (float)style.Size / 3),
new PointF(tem.X + (float)style.Size / 3, tem.Y + (float)style.Size / 3),
new PointF(tem.X, tem.Y - (float)style.Size * 2 / 3),
});
break;
case 7:
g.DrawEllipse(new Pen(style.FromColor), WEMapTools.FromMapPoint(i).X - (float)style.Size / 2, WEMapTools.FromMapPoint(i).Y - (float)style.Size / 2, (float)style.Size, (float)style.Size);
g.FillRectangle(new SolidBrush(style.FromColor), WEMapTools.FromMapPoint(i).X - 0.5f, WEMapTools.FromMapPoint(i).Y - 0.5f, 1, 1);
break;
case 8:
g.DrawEllipse(new Pen(style.FromColor), WEMapTools.FromMapPoint(i).X - (float)style.Size / 2, WEMapTools.FromMapPoint(i).Y - (float)style.Size / 2, (float)style.Size, (float)style.Size);
g.DrawEllipse(new Pen(style.FromColor), WEMapTools.FromMapPoint(i).X - (float)style.Size / 3, WEMapTools.FromMapPoint(i).Y - (float)style.Size / 3, (float)style.Size / 1.5f, (float)style.Size / 1.5f);
break;
}
}
}
/// <summary>
/// 绘制注记
/// </summary>
/// <param name="e"></param>
public void DrawLabel(PaintEventArgs e)
{
Graphics g = e.Graphics;
string field = _Label.Text;
for (int i = 0; i < _Features.Count; i++) //对图层中每一个要素绘制注记
{
string text = Data.Rows[i][field].ToString();
PointF location = WEMapTools.FromMapPoint(_Features[i].Geometries.getCenterPoint()[0]);
if (_FeatureType == FeatureType.WEEntityPoint || _FeatureType == FeatureType.WEPoint)
{
location.Y -= Label.Font.Size; //点要素，将注记向下移半个字体大小
location.X -= text.Length * Label.Font.Size / 2;
}
g.DrawString(text, Label.Font, new SolidBrush(Label.Color), location.X, location.Y);
}
}
public override void Draw(PaintEventArgs e, WEStyle style, string str)
{
Graphics g = e.Graphics;
GraphicsPath path = new GraphicsPath();
if (PointCount == 0)
{
return;
}
foreach (var i in _Polygons)
{
if (i.PointCount == 0)
{
continue;
}
//foreach (var poi in ((WEPolygon)i).Points)
//g.FillRectangle(new SolidBrush(style.FromColor), WEMapTools.FromMapPoint(poi).X - 2, WEMapTools.FromMapPoint(poi).Y - 2, 4, 4);
GraphicsPath _path = new GraphicsPath();
List <PointF> temp = new List <PointF>();
foreach (var j in ((WEPolygon)i).Points)
{
temp.Add(WEMapTools.FromMapPoint(j));
}
temp.Add(temp.First());
_path.AddLines(temp.ToArray());
/*
* for (int j = 0; j < ((WEPolygon)i).Points.Length - 1; j++)
* {
* _path.AddLine(WEMapTools.FromMapPoint(((WEPolygon)i).Points[j]), WEMapTools.FromMapPoint(((WEPolygon)i).Points[j + 1]));
* //g.DrawLine(new Pen(new SolidBrush(Color.Black), 1), WEMapTools.FromMapPoint(((WEPolygon)i).Points[j]), WEMapTools.FromMapPoint(((WEPolygon)i).Points[j + 1]));
* }
* _path.AddLine(WEMapTools.FromMapPoint(((WEPolygon)i).Points.Last()), WEMapTools.FromMapPoint(((WEPolygon)i).Points.First()));
* //g.DrawLine(new Pen(new SolidBrush(Color.Black), 1), WEMapTools.FromMapPoint(((WEPolygon)i).Points.Last()), WEMapTools.FromMapPoint(((WEPolygon)i).Points.First()));
*/
path.AddPath(_path, false);
}
g.FillPath(new SolidBrush(style.FromColor), path);
g.DrawPath(new Pen(new SolidBrush(style.BoundaryColor), (float)style.BoundaryWidth), path);
//g.DrawString(str, new Font("微软雅黑", 8), new SolidBrush(Color.Black), WEMapTools.FromMapPoint(new WEPoint(MBR.MinX + MBR.Width / 2, MBR.MinY + MBR.Height / 2)));
}
