private IEnumerable<Handle> CreateOffsetLines()
{
List<Handle> handles = new List<Handle>();
Point3d pointOnLine = firstBarLine.GetClosestPointTo(spanPoint.Value, true);
if (pointOnLine.DistanceTo(spanPoint.Value) == 0)
{
Handle handle = DrawBarLine(new Line(firstBarLine.StartPoint, firstBarLine.EndPoint));
handles.Add(handle);
return handles;
}
Line perpendincularLine = new Line(pointOnLine, spanPoint.Value);
int barLinesAmount = (int)(perpendincularLine.Length / spanStep.Value);
Transaction trans = db.TransactionManager.StartTransaction();
using (trans)
{
BlockTableRecord btr = trans.GetObject(db.CurrentSpaceId, OpenMode.ForWrite) as BlockTableRecord;
for (int i = 0; i <= barLinesAmount; i++)
{
lastBarLine = CreateFirstBarLine();
Point3d additionalPoint = perpendincularLine.GetPointAtDist(spanStep.Value * i);
Vector3d offsetVector = pointOnLine.GetVectorTo(additionalPoint);
btr.AppendEntity(lastBarLine);
lastBarLine.TransformBy(Matrix3d.Displacement(offsetVector));
handles.Add(lastBarLine.Handle);
trans.AddNewlyCreatedDBObject(lastBarLine, true);
}
trans.Commit();
}
return handles;
}
private Line GetTrimmedDescriptionLine()
{
Line constructionLine = new Line(spanPoint1, descriptionSignPoint);
double descriptionCircleRadius = 0.2 * scale;
Point3d constructionPoint = constructionLine.GetPointAtDist(constructionLine.Length - descriptionCircleRadius);
Line trimmedLine = new Line(constructionPoint, spanPoint1);
return trimmedLine;
}
private Point3d GetTextOrigin(Line l3)
{
return l3.GetPointAtDist(l3.Length / 2);
}