/**
* This operation returns a clone of the Polygon using a deep copy.
*
* @return
* <p>The new clone.
*/
@Override
public Object clone() {
// Initialize a new object.
Polygon object = new Polygon();
// Copy the contents from this one.
object.copy(this);
// Return the newly instantiated object.
return object;
}
/**
* This operation copies the contents of a Polygon into the current object using a deep copy.
*
* @param polygon
* <p>The Object from which the values should be copied.
*/
public void copy(Polygon polygon) {
// Check the parameters.
if (polygon == null) {
return;
}
// Copy the super's data.
super.copy(polygon);
// Deep copy the vertices.
vertices.clear();
for (Vertex vertex : polygon.getVertices()) {
vertices.add((Vertex) vertex.clone());
}
// Deep copy the edges.
edges.clear();
ArrayList<Edge> otherEdges = polygon.getEdges();
int size = otherEdges.size();
for (int i = 0; i < size; i++) {
// Clone the edge. This deep copies the other edge's vertices, so we
// must hook the clone up to our vertex instances.
Edge clone = (Edge) otherEdges.get(i).clone();
// Add the clone to the list of edges.
edges.add(clone);
// Get the new start and end vertices for this edge.
Vertex start = vertices.get(i);
Vertex end = vertices.get((i + 1) % size);
// Register the clone with the start and end.
start.register(clone);
end.register(clone);
// Send the start and end vertices to the clone.
clone.update(start);
clone.update(end);
}
/* ---- Deep copy the edge properties. ---- */
// Unregister from any of the current boundary conditions.
for (Entry<Integer, EdgeProperties> entry : edgeProperties.entrySet()) {
EdgeProperties properties = entry.getValue();
// Unregister from the fluid and thermal boundary conditions.
properties.getFluidBoundaryCondition().unregister(this);
properties.getThermalBoundaryCondition().unregister(this);
// Unregister from all passive scalar boundary conditions.
for (BoundaryCondition condition : properties.getOtherBoundaryConditions()) {
condition.unregister(this);
}
}
// Clone all of the edge properties from the other polygon and register
// with their boundary conditions.
for (Entry<Integer, EdgeProperties> entry : polygon.edgeProperties.entrySet()) {
// Clone and add the edge's properties.
EdgeProperties properties = (EdgeProperties) entry.getValue().clone();
edgeProperties.put(entry.getKey(), properties);
// Unregister from the fluid and thermal boundary conditions.
properties.getFluidBoundaryCondition().register(this);
properties.getThermalBoundaryCondition().register(this);
// Unregister from all passive scalar boundary conditions.
for (BoundaryCondition condition : properties.getOtherBoundaryConditions()) {
condition.register(this);
}
}
/* ---------------------------------------- */
// Copy the PolygonProperties
polygonProperties = (PolygonProperties) polygon.getPolygonProperties().clone();
return;
}