The difference between 2 points is plotted here using 'Golden ratio' cubes (working differently than my 'Golden ratio spiral - 'GoRaS')
The 2 points can be 'high/low' or 'max(open/close)/min(open/close)', with the possibility of higher resolution, the following examples are with 1 week resolution
By extending the lines you can spot support/resistance area's
You can reverse:
or 'mirror':
The 'bars back' can be set to get a previous period Important:
In the example of a week resolution on a daily chart: if you set '0', and it is Friday, the week isn't finished yet! Everything still can change (= repaint)
1 bar back (in this case 7 daily bars back since the res = week!): 2 bars back: 3 bars back:
Here using 'high/low' and lines extended to the left: or 'max(open/close)/min(open/close)' and lines extended to the left: