public void setArticulations(E edge, List<GridPoint> articulations) {
		edgePoints.put(edge, articulations);
		if (articulations != null) {
			for (GridPoint gridPoint : articulations) {
				gridBounds.update(gridPoint);
			}
		}
	}
Returns the column of the initial vertex in this grid.
@return the column of the initial vertex in this grid
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/layout/GridLocationMap.java