I will like to draw some arcs on the chart, is there a code snippet or example code which I can use?

Not exactly what you're looking for but here's an example: TASC 2011-04 | Identifying Cup Formations Early (Siligardos)

Just to clarify. The idea is that an arc-like drawing code can be found inside SemiCups.cs in the TASCIndicators open source code.

Thanks Eugene! That file has lot of things going on, so probably it will take sometime to figure out the whole thing. If I want to put some shared code into my own library so that I can use those classes/methods from multiple scripts, any idea how to do it (a link will be enough if it is documented somewhere).

Hari, glad to help.

QUOTE:
If I want to put some shared code into my own library so that I can use those classes/methods from multiple scripts, any idea how to do it (a link will be enough if it is documented somewhere).

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ok. Thanks Eugene!