I think DRAKON (https://en.wikipedia.org/wiki/DRAKON https://en.wikipedia.org/wiki/DRAKON) worth mentioning in Visual Programming. It is very different from oth

I think DRAKON (https://en.wikipedia.org/wiki/DRAKON https://en.wikipedia.org/wiki/DRAKON) worth mentioning in Visual Programming. It is very different from other visual programming systems and had clearness for complex algorithms that other visual systems lack (no line intersections, skews and other).