Method addVertex

DEVELOPER/core/Graph.cpp:129–169

// before the vertex is added. 

bool
Graph::addVertex(Vertex *vertexPtr, bool checkAdjacency)
{
    // check the vertex * and its adjacency list
    if (vertexPtr == 0) {
	opserr << "WARNING Graph::addVertex";
	opserr << " - attempting to add a NULL vertex*\n";
	return false;
    }

    if (checkAdjacency == true) {
	if (vertexPtr->getDegree() != 0) {
	    const ID &adjacency = vertexPtr->getAdjacency();
	    int size = adjacency.Size();
	    for (int i=0; i<size; i++) {
		Vertex *other = this->getVertexPtr(adjacency(i));
		if (other == 0) {
		    opserr << "WARNING Graph::addVertex";
		    opserr << " - vertex with adjacent vertex not in graph\n";
		    return false;
		}		
	    }
	}
    }


    bool result = myVertices->addComponent(vertexPtr);
    if (result == false) {
      opserr << *this;
      opserr << "BAD VERTEX\n: " << *vertexPtr;
	opserr << "WARNING Graph::addVertex";
	opserr << " - vertex could not be stored in TaggedObjectStorage object\n";
    }


    // check nextFreeTag
    if (vertexPtr->getTag() >= nextFreeTag)
      nextFreeTag = vertexPtr->getTag() + 1;

    return result;
}


// int addEdge(int vertexTag, int otherVertexTag);