/// <summary>
/// Explodes the current insert.
/// </summary>
/// <returns>A list of entities.</returns>
public List <EntityObject> Explode()
{
List <EntityObject> entities = new List <EntityObject>();
Matrix3 transformation = this.GetTransformation();
Vector3 translation = this.Position - transformation * this.block.Origin;
foreach (EntityObject entity in this.block.Entities)
{
Vector3 localScale = MathHelper.Transform(this.Scale, entity.Normal, CoordinateSystem.World, CoordinateSystem.Object);
bool isUniformScale = MathHelper.IsEqual(localScale.X, localScale.Y);
// entities with reactors are associated with other entities they will handle the transformation
if (entity.Reactors.Count > 0)
{
continue;
}
if (!isUniformScale)
{
switch (entity.Type)
{
case EntityType.Circle:
{
Circle circle = (Circle)entity;
Ellipse ellipse = new Ellipse
{
//EntityObject properties
Layer = (Layer)entity.Layer.Clone(),
Linetype = (Linetype)entity.Linetype.Clone(),
Color = (AciColor)entity.Color.Clone(),
Lineweight = entity.Lineweight,
Transparency = (Transparency)entity.Transparency.Clone(),
LinetypeScale = entity.LinetypeScale,
Normal = entity.Normal,
IsVisible = entity.IsVisible,
//Ellipse properties
Center = circle.Center,
MajorAxis = 2 * circle.Radius,
MinorAxis = 2 * circle.Radius,
Thickness = circle.Thickness
};
ellipse.TransformBy(transformation, translation);
entities.Add(ellipse);
break;
}
case EntityType.Arc:
{
Arc arc = (Arc)entity;
Ellipse ellipse = new Ellipse
{
//EntityObject properties
Layer = (Layer)entity.Layer.Clone(),
Linetype = (Linetype)entity.Linetype.Clone(),
Color = (AciColor)entity.Color.Clone(),
Lineweight = entity.Lineweight,
Transparency = (Transparency)entity.Transparency.Clone(),
LinetypeScale = entity.LinetypeScale,
Normal = entity.Normal,
IsVisible = entity.IsVisible,
//Ellipse properties
Center = arc.Center,
MajorAxis = 2 * arc.Radius,
MinorAxis = 2 * arc.Radius,
StartAngle = arc.StartAngle,
EndAngle = arc.EndAngle,
Thickness = arc.Thickness
};
ellipse.TransformBy(transformation, translation);
entities.Add(ellipse);
break;
}
case EntityType.LwPolyline:
{
List <EntityObject> newEntities = ((LwPolyline)entity).Explode();
foreach (EntityObject newEntity in newEntities)
{
if (newEntity.Type == EntityType.Arc)
{
Arc arc = (Arc)newEntity;
Ellipse ellipse = new Ellipse
{
//EntityObject properties
Layer = (Layer)entity.Layer.Clone(),
Linetype = (Linetype)entity.Linetype.Clone(),
Color = (AciColor)entity.Color.Clone(),
Lineweight = entity.Lineweight,
Transparency = (Transparency)entity.Transparency.Clone(),
LinetypeScale = entity.LinetypeScale,
Normal = entity.Normal,
IsVisible = entity.IsVisible,
//Ellipse properties
Center = arc.Center,
MajorAxis = 2 * arc.Radius,
MinorAxis = 2 * arc.Radius,
StartAngle = arc.StartAngle,
EndAngle = arc.EndAngle,
Thickness = arc.Thickness
};
ellipse.TransformBy(transformation, translation);
entities.Add(ellipse);
}
else
{
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
}
}
break;
}
case EntityType.MLine:
{
List <EntityObject> newEntities = ((MLine)entity).Explode();
foreach (EntityObject newEntity in newEntities)
{
if (newEntity.Type == EntityType.Arc)
{
Arc arc = (Arc)newEntity;
Ellipse ellipse = new Ellipse
{
//EntityObject properties
Layer = (Layer)entity.Layer.Clone(),
Linetype = (Linetype)entity.Linetype.Clone(),
Color = (AciColor)entity.Color.Clone(),
Lineweight = entity.Lineweight,
Transparency = (Transparency)entity.Transparency.Clone(),
LinetypeScale = entity.LinetypeScale,
Normal = entity.Normal,
IsVisible = entity.IsVisible,
//Ellipse properties
Center = arc.Center,
MajorAxis = 2 * arc.Radius,
MinorAxis = 2 * arc.Radius,
StartAngle = arc.StartAngle,
EndAngle = arc.EndAngle,
Thickness = arc.Thickness
};
ellipse.TransformBy(transformation, translation);
entities.Add(ellipse);
}
else
{
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
}
}
break;
}
default:
{
EntityObject newEntity = (EntityObject)entity.Clone();
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
break;
}
}
}
else
{
EntityObject newEntity = (EntityObject)entity.Clone();
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
}
}
foreach (Attribute attribute in this.attributes)
{
// the attributes will be exploded as a Text entity
Text text = new Text
{
//Attribute properties
Layer = (Layer)attribute.Layer.Clone(),
Linetype = (Linetype)attribute.Linetype.Clone(),
Color = (AciColor)attribute.Color.Clone(),
Lineweight = attribute.Lineweight,
Transparency = (Transparency)attribute.Transparency.Clone(),
LinetypeScale = attribute.LinetypeScale,
Normal = attribute.Normal,
IsVisible = attribute.IsVisible,
Height = attribute.Height,
WidthFactor = attribute.WidthFactor,
ObliqueAngle = attribute.ObliqueAngle,
Value = attribute.Value.ToString(),
Style = (TextStyle)attribute.Style.Clone(),
Position = attribute.Position,
Rotation = attribute.Rotation,
Alignment = attribute.Alignment,
IsBackward = attribute.IsBackward,
IsUpsideDown = attribute.IsUpsideDown
};
entities.Add(text);
}
return(entities);
}
/// <summary>
/// Explodes the current insert.
/// </summary>
/// <returns>A list of entities.</returns>
/// <remarks>
/// Non-uniform scaling is not supported by all entities. Read the documentation of the entities TranformBy method.
/// </remarks>
public List <EntityObject> Explode()
{
bool isUniformScale = MathHelper.IsEqual(scale.X, scale.Y) &&
MathHelper.IsEqual(scale.Y, scale.Z);
List <EntityObject> entities = new List <EntityObject>();
Matrix3 transformation = GetTransformation(Owner == null ? DrawingUnits.Unitless : Block.Record.Owner.Owner.DrawingVariables.InsUnits);
Vector3 translation = Position - transformation * block.Origin;
foreach (EntityObject entity in block.Entities)
{
// TODO: entities with no implemented TransformBy method
if (entity.Type == EntityType.Viewport)
{
continue;
}
// entities with reactors are associated with other entities they will handle the transformation
if (entity.Reactors.Count > 0)
{
continue;
}
if (!isUniformScale)
{
switch (entity.Type)
{
case EntityType.Circle:
{
Circle circle = (Circle)entity;
Ellipse ellipse = new Ellipse
{
//EntityObject properties
Layer = (Layer)entity.Layer.Clone(),
Linetype = (Linetype)entity.Linetype.Clone(),
Color = (AciColor)entity.Color.Clone(),
Lineweight = entity.Lineweight,
Transparency = (Transparency)entity.Transparency.Clone(),
LinetypeScale = entity.LinetypeScale,
Normal = entity.Normal,
IsVisible = entity.IsVisible,
//Ellipse properties
Center = circle.Center,
MajorAxis = 2 * circle.Radius,
MinorAxis = 2 * circle.Radius,
Thickness = circle.Thickness
};
foreach (XData data in XData.Values)
{
entity.XData.Add((XData)data.Clone());
}
ellipse.TransformBy(transformation, translation);
entities.Add(ellipse);
break;
}
case EntityType.Arc:
{
Arc arc = (Arc)entity;
Ellipse ellipse = new Ellipse
{
//EntityObject properties
Layer = (Layer)entity.Layer.Clone(),
Linetype = (Linetype)entity.Linetype.Clone(),
Color = (AciColor)entity.Color.Clone(),
Lineweight = entity.Lineweight,
Transparency = (Transparency)entity.Transparency.Clone(),
LinetypeScale = entity.LinetypeScale,
Normal = entity.Normal,
IsVisible = entity.IsVisible,
//Ellipse properties
Center = arc.Center,
MajorAxis = 2 * arc.Radius,
MinorAxis = 2 * arc.Radius,
StartAngle = arc.StartAngle,
EndAngle = arc.EndAngle,
Thickness = arc.Thickness
};
ellipse.TransformBy(transformation, translation);
entities.Add(ellipse);
break;
}
case EntityType.LwPolyline:
{
List <EntityObject> newEntities = ((LwPolyline)entity).Explode();
foreach (EntityObject newEntity in newEntities)
{
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
}
break;
}
case EntityType.MLine:
{
List <EntityObject> newEntities = ((MLine)entity).Explode();
foreach (EntityObject newEntity in newEntities)
{
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
}
break;
}
default:
{
EntityObject newEntity = (EntityObject)entity.Clone();
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
break;
}
}
}
else
{
EntityObject newEntity = (EntityObject)entity.Clone();
newEntity.TransformBy(transformation, translation);
entities.Add(newEntity);
}
}
return(entities);
}
