I have updated the excellent script originally written by BarefootJoey with additional functionality as listed below the script's original description:
BarefootJoey: In astrology, planetary aspects refer to the angles formed between two or more planets in a horoscope or birth chart. These angles are created by the positions of the planets in the sky and are thought to represent a particular energy or influence that can impact events on Earth. The most common planetary aspects are the conjunction (when two planets are in the same position in the zodiac), the opposition (when two planets are direct across from each other in the zodiac), the trine (when two planets are 120 degrees apart in the zodiac), and the square (when two planets are 90 degrees apart in the zodiac). This oscillator plots the current geocentric/heliocentric aspect for up to two planets and features a customizable precision of degree (up to +/- 15 degrees) for each aspect.
Additional functionality added in by Yevolution: 1. Overlay the indicator plot on top of the main chart, with the indicator's scale placed on the left - I found it easier to spot price reactions at a given planetary aspect vs seeing the plot in a separate frame 2. Add options to plot a vertical bar for every occurrence of chosen aspects
The script source code has remained open and additional comments have been added by me to explain the changes where relevant.
When I get some more spare time I will add a function to enable future planetary aspect events to also be displayed on the chart to make forecasting using this data easier.