NinjaScript > Language Reference > Common > Drawing

Definition

A collection of PriceLevel objects defining lines for multi-price-level Drawing Tools (Fibonacci tools, etc.). Each PriceLevel within the collection can be configured programmatically or analyzed to obtain the parameters of user-drawn objects.

Note: PriceLevels is only used with the following pre-built Drawing Tools, but it can be used with custom Drawing Tools, as well:

•AndrewsPitchfork

•FibonacciCircle

•FibonacciExtensions

•FibonacciRetracements

•FibonacciTimeExtensions

•GannFan

•TrendChannel

Syntax

PriceLevels[int idx]
PriceLevels[int idx].GetPrice(double startPrice, double totalPriceRange, bool isInverted)
PriceLevels[int idx].GetY(ChartScale chartScale, double startPrice, double totalPriceRange, bool isInverted)

Methods and Properties

GetPrice()	Returns a double which repents the price value at the specified price level
GetY()	Returns a float representing the y-pixel coordinate at the specified price level
Name	The Name property of the specified PriceLevel. Set to a formatted version of Value by default.
Stroke	The Stroke used to draw the line associated with the specified PriceLevel
Tag	A tag used to identify the specified PriceLevel. Null by default.
Value	The value of the PriceLevel in percentage terms

Examples


// Define a FibonacciRetracements object outside of OnBarUpdate(), so the same object can be re-used FibonacciRetracements myRetracements; protected override void OnBarUpdate() { if (CurrentBar < 20) return; // Instantiate myRetracements myRetracements = Draw.FibonacciRetracements(this, "fib", true, 20, High[20], 2, Low[2]); // Print each price level and the corresponding value in the PriceLevels collection contain in myRetracements // setting isInverted correctly is important for the Fibonacci Retracements since it will define which starting point is used, as it changes based // on the anchors, i.e. if the Fibonacci is drawn from 100% to 0% (default) or the other inverted way (0% to 100%). foreach (PriceLevel p in myRetracements.PriceLevels) { Print(p.Value); Print(p.GetPrice(myRetracements.StartAnchor.Price, myRetracements.EndAnchor.Price - myRetracements.StartAnchor.Price, false)); } }

// Define a FibonacciRetracements object outside of OnBarUpdate(), so the same object can be re-used
FibonacciRetracements myRetracements;

protected override void OnBarUpdate()
{

if (CurrentBar < 20)
return;

// Instantiate myRetracements
myRetracements = Draw.FibonacciRetracements(this, "fib", true, 20, High[20], 2, Low[2]);

// Print each price level and the corresponding value in the PriceLevels collection contain in myRetracements

// setting isInverted correctly is important for the Fibonacci Retracements since it will define which starting point is used, as it changes based // on the anchors, i.e. if the Fibonacci is drawn from 100% to 0% (default) or the other inverted way (0% to 100%).
foreach (PriceLevel p in myRetracements.PriceLevels)
{
Print(p.Value);
Print(p.GetPrice(myRetracements.StartAnchor.Price, myRetracements.EndAnchor.Price - myRetracements.StartAnchor.Price, false));
}
}


// Define a TrendChannel object outside of OnBarUpdate(), so the same object can be re-used TrendChannel myTCh; protected override void OnBarUpdate() { if (CurrentBar < 20) return; // Instantiate myTrendChannel myTCh = Draw.TrendChannel(this, "tc", true, 10, Low[10], 0, High[0], 10, High[10] + 5 * TickSize); // Print each price level and the corresponding value in the PriceLevels collection contain in myTrendChannel // For the TrendChannel the 0% is the Trend anchor, the 100% the Parallel anchor foreach (PriceLevel p in myTCh.PriceLevels) { Print(p.Value); Print(p.GetPrice(myTCh.TrendStartAnchor.Price, myTCh.ParallelStartAnchor.Price - myTCh.TrendStartAnchor.Price, false)); } }

// Define a TrendChannel object outside of OnBarUpdate(), so the same object can be re-used
TrendChannel myTCh;

protected override void OnBarUpdate()
{

if (CurrentBar < 20)
return;

// Instantiate myTrendChannel
myTCh = Draw.TrendChannel(this, "tc", true, 10, Low[10], 0, High[0], 10, High[10] + 5 * TickSize);

// Print each price level and the corresponding value in the PriceLevels collection contain in myTrendChannel

// For the TrendChannel the 0% is the Trend anchor, the 100% the Parallel anchor
foreach (PriceLevel p in myTCh.PriceLevels)
{
Print(p.Value);
Print(p.GetPrice(myTCh.TrendStartAnchor.Price, myTCh.ParallelStartAnchor.Price - myTCh.TrendStartAnchor.Price, false));
}
}