/// <summary>
/// Renders a LineString to the map.
/// </summary>
/// <param name="g">Graphics reference</param>
/// <param name="line">LineString to render</param>
/// <param name="pen">Pen style used for rendering</param>
/// <param name="map">Map reference</param>
public static void DrawLineString(System.Drawing.Graphics g, Geometries.LineString line, System.Drawing.Pen pen, SharpMap.Map map)
{
if (line.Vertices.Count > 1)
{
System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
gp.AddLines(line.TransformToImage(map));
g.DrawPath(pen, gp);
}
}
internal static NTSLineString ToNTSLineString(Geometries.LineString geom,
IGeometryFactory factory)
{
NTSCoordinate[] coordinates = new NTSCoordinate[geom.NumPoints];
int index = 0;
foreach (Geometries.Point point in geom.Vertices)
{
coordinates[index++] = ToNTSCoordinate(point, factory);
}
return(factory.CreateLineString(coordinates) as NTSLineString);
}
/// <summary>
/// CX ÐÂÔö
/// </summary>
/// <param name="g"></param>
/// <param name="line"></param>
/// <param name="pen"></param>
/// <param name="map"></param>
public static void DrawLineString(System.Drawing.Graphics g, Geometries.LineString line, System.Drawing.Pen[] pens, SharpMap.Map map)
{
if (line.Vertices.Count > 1)
{
GraphicsPath gp = new GraphicsPath();
gp.AddLines(LimitValues(line.TransformToImage(map), extremeValueLimit));
for (int i = 0; i < pens.Length; i++)
{
g.DrawPath(pens[i], gp);
}
}
}
/// <summary>
/// Renders a LineString to the map.
/// </summary>
/// <param name="g">Graphics reference</param>
/// <param name="line">LineString to render</param>
/// <param name="pen">Pen style used for rendering</param>
/// <param name="map">Map reference</param>
public static void DrawLineString(System.Drawing.Graphics g, Geometries.LineString line, System.Drawing.Pen pen, SharpMap.Map map)
{
if (line.Vertices.Count > 1)
{
System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
gp.AddLines(line.TransformToImage(map));
if (line.UseColor)
{
pen.Color = line.Color;
}
if (line.UseCustomWidth)
{
g.DrawPath(new Pen(pen.Color, line.Width_), gp);
}
else
{
g.DrawPath(pen, gp);
}
}
}
protected override void OnMouseDoubleClick(MouseEventArgs e)
{
base.OnMouseDoubleClick(e);
if (_activeTool == Tools.DrawPolygon)
{
if (GeometryDefined != null)
{
Geometries.LinearRing extRing = new Geometries.LinearRing();
for (int i = 0; i < _pointArray.GetUpperBound(0); i++)
extRing.Vertices.Add(Map.ImageToWorld(new PointF(_pointArray[i].X, _pointArray[i].Y)));
extRing.Vertices.Add(Map.ImageToWorld(new PointF(_pointArray[0].X, _pointArray[0].Y)));
GeometryDefined(new Geometries.Polygon(extRing));
}
ActiveTool = Tools.None;
}
else if (_activeTool == Tools.DrawLine)
{
if (GeometryDefined != null)
{
Geometries.LineString line = new Geometries.LineString();
for (int i = 0; i <= _pointArray.GetUpperBound(0); i++)
line.Vertices.Add(Map.ImageToWorld(new PointF(_pointArray[i].X, _pointArray[i].Y)));
GeometryDefined(line);
}
ActiveTool = Tools.None;
}
}
