private void SetInternalInfo()
{
numberOfEdges = 0;
pathTypeFlag = BoundaryPathTypeFlag.Derived | BoundaryPathTypeFlag.External;
foreach (IEntityObject entity in data)
{
switch (entity.Type)
{
case EntityType.Arc:
// a single arc is not a closed path
if (data.Count <= 1)
{
throw new ArgumentException("A single arc does not make closed loop.");
}
numberOfEdges += 1;
break;
case EntityType.Circle:
// a circle is a closed loop
if (data.Count > 1)
{
throw new ArgumentException("A circle is a closed loop, there can be only per path.");
}
numberOfEdges += 1;
break;
case EntityType.Ellipse:
// a full ellipse is a closed loop
if (((Ellipse)entity).IsFullEllipse && data.Count > 1)
{
throw new ArgumentException("A full ellipse is a closed loop, there can be only per path.");
}
// a single ellipse arc is not a closed path
if (!((Ellipse)entity).IsFullEllipse && data.Count <= 1)
{
throw new ArgumentException("A single ellipse arc does not make closed loop.");
}
numberOfEdges += 1;
break;
case EntityType.Line:
// a single line is not a closed path
if (data.Count <= 1)
{
throw new ArgumentException("Only a line does not make closed loop.");
}
numberOfEdges += 1;
break;
case EntityType.Polyline:
if (((Polyline)entity).IsClosed)
{
pathTypeFlag = BoundaryPathTypeFlag.Derived | BoundaryPathTypeFlag.External | BoundaryPathTypeFlag.Polyline;
numberOfEdges += ((Polyline)entity).Vertexes.Count;
}
else
{
// open polylines will be exploded before being written in the dxf file
// for an open polyline the number of edges is equal the number of vertexes
numberOfEdges += ((Polyline)entity).Vertexes.Count - 1;
}
break;
}
}
}
private void SetInternalInfo()
{
numberOfEdges = 0;
pathTypeFlag = BoundaryPathTypeFlag.Derived | BoundaryPathTypeFlag.External;
// the first loop will be considered as the Outermost path
foreach (EntityObject entity in data)
{
// it seems that AutoCAD does not have problems on creating loops that theorically does not make sense, like, for example an internal loop that is made of a single arc.
// so if AutoCAD is ok with that I am too, the program that make use of this information will take care of this inconsistencies
switch (entity.Type)
{
case EntityType.Arc:
// a single arc is not a closed path
//if (data.Count <= 1) throw new ArgumentException("A single arc does not make closed loop.");
numberOfEdges += 1;
break;
case EntityType.Circle:
// a circle is a closed loop
//if (data.Count>1) throw new ArgumentException("A circle is a closed loop, there can be only per path.");
numberOfEdges += 1;
break;
case EntityType.Ellipse:
// a full ellipse is a closed loop
//if (((Ellipse)entity).IsFullEllipse && data.Count > 1) throw new ArgumentException("A full ellipse is a closed loop, there can be only per path.");
// a single ellipse arc is not a closed path
//if (!((Ellipse)entity).IsFullEllipse && data.Count <= 1) throw new ArgumentException("A single ellipse arc does not make closed loop.");
numberOfEdges += 1;
break;
case EntityType.Line:
// a single line is not a closed path
//if (data.Count <= 1) throw new ArgumentException("Only a line does not make closed loop.");
numberOfEdges += 1;
break;
case EntityType.LightWeightPolyline:
if (((LwPolyline)entity).IsClosed)
{
pathTypeFlag = BoundaryPathTypeFlag.Derived | BoundaryPathTypeFlag.External | BoundaryPathTypeFlag.Polyline;
numberOfEdges += ((LwPolyline)entity).Vertexes.Count;
}
else
{
// open polylines will be exploded before being written in the dxf file
// for an open polyline the number of edges is equal the number of vertexes
numberOfEdges += ((LwPolyline)entity).Vertexes.Count - 1;
}
break;
case EntityType.Spline:
// a closed spline is a closed loop
//if (((Spline)entity).IsClosed && data.Count > 1) throw new ArgumentException("A closed spline is a closed loop, there can be only per path.");
// an open spline is not a closed path
//if (!((Spline)entity).IsClosed && data.Count <= 1) throw new ArgumentException("An open spline does not make closed loop.");
numberOfEdges += 1;
break;
default:
throw new ArgumentException("The entity type " + entity.Type + " unknown or not implemented as part of a hatch boundary.");
}
}
}