How does trading gold affect the DXY chart?
Gold is a very complicated instrument. Currently, Gold is treated as the central of value by strong financial country. So, the proper way to analyze gold, it has to be with strong currency index, stock market index and now we have cryptocurrency. The most attractive one will attract traders and investors to come, and less attractive one will be dormant and drop.
Back to your question, will gold effect DXY chart? DXY is formulated with others primary currency such as JPY, GBP, CAD, CHF. It has no gold in its formulation. So the movement of gold wont have direct relation with DXY.
But in the real situation, when every financial instrument is under pressure, many institution will choose gold as the safe haven to store value. This action can be seen as the drop of currency index and rise of gold. Just like at this moment DXY and XAU both up. Both of them has their own interest.