/// <summary>
/// creates or adds a segment to the collections
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="startOffset"></param>
/// <param name="endOffset"></param>
public void CreateOrAddSegment(ComplexGeometry geometry,
Dictionary <Point, LineSegments> segments,
int x, int y, Vector startOffset, Vector endOffset)
{
Point ptMiddle = new Point(x, y);
Point startPoint = ptMiddle + startOffset;
Point endPoint = ptMiddle + endOffset;
if (segments.ContainsKey(startPoint))
{
var pc = segments[startPoint];
segments.Remove(startPoint);
if (pc.First() == startPoint)
{
pc.Insert(0, endPoint);
}
else if (pc.Last() == startPoint)
{
pc.Add(endPoint);
}
if (!segments.ContainsKey(endPoint))
{
segments.Add(endPoint, pc);
}
}
else if (segments.ContainsKey(endPoint))
{
var pc = segments[endPoint];
segments.Remove(endPoint);
if (pc.First() == endPoint)
{
pc.Insert(0, startPoint);
}
else if (pc.Last() == endPoint)
{
pc.Add(startPoint);
}
if (!segments.ContainsKey(startPoint))
{
segments.Add(startPoint, pc);
}
}
else
{
var pc = new LineSegments();
pc.Add(startPoint);
pc.Add(endPoint);
segments.Add(startPoint, pc);
segments.Add(endPoint, pc);
geometry.Add(pc);
}
}
internal override int ReadParameters(List <string> parameters, IgesReaderBinder binder)
{
var index = 0;
var segmentCount = Integer(parameters, ref index);
ArrowHeight = Double(parameters, ref index);
ArrowWidth = Double(parameters, ref index);
var zDepth = Double(parameters, ref index);
var x = Double(parameters, ref index);
var y = Double(parameters, ref index);
ArrowheadCoordinates = new Point3D(x, y, zDepth);
for (int i = 0; i < segmentCount; i++)
{
x = Double(parameters, ref index);
y = Double(parameters, ref index);
LineSegments.Add(new Point3D(x, y, zDepth));
}
return(segmentCount * 2 + 6);
}
