private bool HitTestByLine(ShapePolyline shapePolyline, double tolerance)
{
if (this is ShapePoint)
{
return(GeometryMathLib.GetDistance(shapePolyline, this as ShapePoint) < tolerance);
}
else if (this is ShapePolyline)
{
return(GeometryMathLib.IsCrossed2Lines(this as ShapePolyline, shapePolyline));
}
else if (this is ShapePolygon)
{
return((this as ShapePolygon).Contains(shapePolyline));
}
else
{
throw new NotSupportedException("暂不支持对\"" + this.GetType().ToString() + "\"进行点击测试。");
}
}
public override bool Contains(Shape geometry)
{
if (geometry is ShapePoint)
{
return(GeometryMathLib.GetDistance(this, geometry as ShapePoint) < double.Epsilon);
}
else if (geometry is ShapePolyline)
{
return(false);
}
else if (geometry is ShapePolygon)
{
return(false);
}
else
{
return(false);
}
}
public override bool Contains(Shape geometry)
{
if (!Envelope.Contains(geometry.Envelope))
{
return(false);
}
if (geometry is ShapePoint)
{
return(GeometryMathLib.IsPointInPolygon(geometry as ShapePoint, this));
}
else if (geometry is ShapePolyline)
{
ShapePolyline line = geometry as ShapePolyline;
foreach (ShapeLineString part in line.Parts)
{
foreach (ShapePoint pt in part.Points)
{
if (!GeometryMathLib.IsPointInPolygon(pt, this))
{
return(false);
}
}
}
return(true);
}
else if (geometry is ShapePolygon)
{
ShapePolygon ply = geometry as ShapePolygon;
foreach (ShapeRing ring in ply.Rings)
{
foreach (ShapePoint pt in ring.Points)
{
if (!GeometryMathLib.IsPointInPolygon(pt, this))
{
return(false);
}
}
}
return(true);
}
return(false);
}
private bool HitTestByPoint(ShapePoint shapePoint, double tolerance)
{
if (this is ShapePoint)
{
Envelope evp = Envelope.Clone() as Envelope;
evp = evp.Expand((float)tolerance);
return(evp.Contains(shapePoint.Envelope));
}
else if (this is ShapePolyline)
{
return(GeometryMathLib.GetDistance(this as ShapePolyline, shapePoint) < tolerance);
}
else if (this is ShapePolygon)
{
return((this as ShapePolygon).Contains(shapePoint));
}
else
{
throw new NotSupportedException("暂不支持对\"" + this.GetType().ToString() + "\"进行点击测试。");
}
}