Zig Zag
The Zig Zag overlay is a collection of straight lines that connect significant tops and bottoms on a price graph. The ZigZag feature on SharpCharts is not an indicator per se, but rather a means to filter out random noise and compare relative price movements. The ZigZag can be set to acknowledge minimum price changes and ignore those that do not fit the criteria. The minimum price movements are set in percentage terms and can be based on either the close or high/low range.
Useful resources
