58 lines
1.7 KiB
C#
58 lines
1.7 KiB
C#
|
using System;
|
||
|
|
using System.Collections.Generic;
|
||
|
|
using Microsoft.Msagl.Core.Geometry;
|
||
|
|
using Microsoft.Msagl.Core.Geometry.Curves;
|
||
|
|
|
||
|
|
namespace Microsoft.Msagl.Routing.Visibility {
|
||
|
|
/// <summary>
|
||
|
|
/// represents a chunk of a hole boundary
|
||
|
|
/// </summary>
|
||
|
|
internal class Stem {
|
||
|
|
PolylinePoint start;
|
||
|
|
|
||
|
|
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
|
||
|
|
internal PolylinePoint Start {
|
||
|
|
get { return start; }
|
||
|
|
set { start = value; }
|
||
|
|
}
|
||
|
|
PolylinePoint end;
|
||
|
|
|
||
|
|
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
|
||
|
|
internal PolylinePoint End {
|
||
|
|
get { return end; }
|
||
|
|
set { end = value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
internal Stem(PolylinePoint start, PolylinePoint end) {
|
||
|
|
System.Diagnostics.Debug.Assert(start.Polyline==end.Polyline);
|
||
|
|
this.start = start;
|
||
|
|
this.end = end;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal IEnumerable<PolylinePoint> Sides {
|
||
|
|
get {
|
||
|
|
PolylinePoint v=start;
|
||
|
|
|
||
|
|
while(v!= end ) {
|
||
|
|
PolylinePoint side = v;
|
||
|
|
yield return side;
|
||
|
|
v = side.NextOnPolyline;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal bool MoveStartClockwise() {
|
||
|
|
if (Start != End) {
|
||
|
|
Start = Start.NextOnPolyline;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
public override string ToString() {
|
||
|
|
return String.Format(System.Globalization.CultureInfo.InvariantCulture, "Stem({0},{1})", Start, End);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|