boolean isClippingX(Vertex2d v, double x) {

			double side = getSide(v);
			if (goingLeft) {
				return x >= side;
			}
			return x < side;
		}
Encapsulates knowledge of edge direction (up/down, left/right) and uses that knowledge
to report vertex offsets from the appropriate side and top/bottom
Ghidra/Features/FunctionGraphDecompilerExtension/src/main/java/ghidra/app/plugin/core/functiongraph/graph/layout/DecompilerNestedLayout.java